AZ-220 Practice Test Questions – Microsoft Azure IoT Developer

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style=’mso-bidi-font-size:10.5pt;font-family:”Arial”,sans-serif;mso-fareast-font-family:

Helvetica;mso-bidi-font-weight:bold’>IoT Hub is one of the first Azure services

to support distributed tracing. As more Azure services support distributed

tracing, you’ll be able trace IoT messages throughout the Azure services

involved in your solution.

style=’mso-bidi-font-size:10.5pt;font-family:”Arial”,sans-serif;mso-fareast-font-family:

Helvetica;mso-bidi-font-weight:bold’>Note:

style=’mso-bidi-font-size:10.5pt;font-family:”Arial”,sans-serif;mso-fareast-font-family:

Helvetica;mso-bidi-font-weight:bold’>Enabling distributed tracing for IoT Hub

gives you the ability to:

style=’mso-bidi-font-size:10.5pt;font-family:”Arial”,sans-serif;mso-fareast-font-family:

Helvetica;mso-bidi-font-weight:bold’>Precisely monitor the flow of each message

through IoT Hub using trace context. This trace context includes correlation

IDs that allow you to correlate events from one component withlang=EN-US style=’mso-bidi-font-size:10.5pt;font-family:”Arial”,sans-serif;

mso-fareast-font-family:等线;mso-bidi-font-weight:bold’> style=’mso-bidi-font-size:10.5pt;font-family:”Arial”,sans-serif;mso-fareast-font-family:

Helvetica;mso-bidi-font-weight:bold’>events from another component. It can be

applied for a subset or all IoT device messages using device twin.

style=’mso-bidi-font-size:10.5pt;font-family:”Arial”,sans-serif;mso-fareast-font-family:

Helvetica;mso-bidi-font-weight:bold’>Automatically log the trace context to

Azure Monitor diagnostic logs.

style=’mso-bidi-font-size:10.5pt;font-family:”Arial”,sans-serif;mso-fareast-font-family:

Helvetica;mso-bidi-font-weight:bold’>Measure and understand message flow and

latency from devices to IoT Hub and routing endpoints. Start considering how

you want to implement distributed tracing for the non-Azure services in your

IoT solution.

style=’mso-bidi-font-size:10.5pt;font-family:”Arial”,sans-serif;mso-fareast-font-family:

Helvetica;mso-bidi-font-weight:bold’>Reference: https://docs.microsoft.com/en-us/azure/iot-hub/iot-hub-distributed-tracing

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Helvetica;mso-bidi-font-weight:bold’>

style=’mso-bidi-font-size:10.5pt;font-family:”Arial”,sans-serif;mso-fareast-font-family:

Helvetica;mso-bidi-font-weight:bold’>2.You plan to deploy Azure Time Series

Insights.

style=’mso-bidi-font-size:10.5pt;font-family:”Arial”,sans-serif;mso-fareast-font-family:

Helvetica;mso-bidi-font-weight:bold’>What should you create on iothub1 before

you deploy Time Series Insights?

style=’mso-bidi-font-size:10.5pt;font-family:”Arial”,sans-serif;mso-fareast-font-family:

Helvetica;mso-bidi-font-weight:bold’>A. a new message route

style=’mso-bidi-font-size:10.5pt;font-family:”Arial”,sans-serif;mso-fareast-font-family:

Helvetica;mso-bidi-font-weight:bold’>B. a new consumer group

style=’mso-bidi-font-size:10.5pt;font-family:”Arial”,sans-serif;mso-fareast-font-family:

Helvetica;mso-bidi-font-weight:bold’>C. a new shared access policy

style=’mso-bidi-font-size:10.5pt;font-family:”Arial”,sans-serif;mso-fareast-font-family:

Helvetica;mso-bidi-font-weight:bold’>D. an IP filter rule

style=’mso-bidi-font-size:10.5pt;font-family:”Arial”,sans-serif;mso-fareast-font-family:

“Times New Roman”‘>

style=’mso-bidi-font-size:10.5pt;font-family:”Arial”,sans-serif;mso-fareast-font-family:

Helvetica;mso-bidi-font-weight:bold’>Create a dedicated consumer group in the

IoT hub for the Time Series Insights environment to consume from. Each Time

Series Insights event source must have its own dedicated consumer group that

isn’t shared with any other consumer. If multiple readers consume events from

the same consumer group, all readers are likely to exhibit failures.

style=’mso-bidi-font-size:10.5pt;font-family:”Arial”,sans-serif;mso-fareast-font-family:

Helvetica;mso-bidi-font-weight:bold’>Reference: https://docs.microsoft.com/en-us/azure/time-series-insights/time-series-insights-how-to-add-an-event-source-

iothub

style=’mso-bidi-font-size:10.5pt;font-family:”Arial”,sans-serif;mso-fareast-font-family:

Helvetica;mso-bidi-font-weight:bold’>

style=’mso-bidi-font-size:10.5pt;font-family:”Arial”,sans-serif;mso-fareast-font-family:

Helvetica;mso-bidi-font-weight:bold’>3.What should you do to identify the cause

of the connectivity issues?

style=’mso-bidi-font-size:10.5pt;font-family:”Arial”,sans-serif;mso-fareast-font-family:

Helvetica;mso-bidi-font-weight:bold’>A. Send cloud-to-device messages to the

IoT devices.

style=’mso-bidi-font-size:10.5pt;font-family:”Arial”,sans-serif;mso-fareast-font-family:

Helvetica;mso-bidi-font-weight:bold’>B. Use the heartbeat pattern to send

messages from the IoT devices to iothub1.

style=’mso-bidi-font-size:10.5pt;font-family:”Arial”,sans-serif;mso-fareast-font-family:

Helvetica;mso-bidi-font-weight:bold’>C. Monitor the connection status of the

device twin by using an Azure function.

style=’mso-bidi-font-size:10.5pt;font-family:”Arial”,sans-serif;mso-fareast-font-family:

Helvetica;mso-bidi-font-weight:bold’>D. Enable the collection of the

Connections diagnostics logs and set up alerts for the connected devices count

metric.

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“Times New Roman”‘>

style=’mso-bidi-font-size:10.5pt;font-family:”Arial”,sans-serif;mso-fareast-font-family:

Helvetica;mso-bidi-font-weight:bold’>How should you complete the device

connection string? To answer, select the appropriate options in the answer

area.style=’mso-bidi-font-size:10.5pt;font-family:”Arial”,sans-serif’>src=”AZ-220%20V9.files/image006.jpg” v:shapes=”_x0000_i1027″>lang=EN-US style=’mso-bidi-font-size:10.5pt;font-family:”Arial”,sans-serif;

mso-fareast-font-family:”Times New Roman”;mso-bidi-font-weight:bold’>

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“Times New Roman”‘>

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“Times New Roman”‘>

style=’mso-bidi-font-size:10.5pt;font-family:”Arial”,sans-serif;mso-fareast-font-family:

Helvetica;mso-bidi-font-weight:bold’>Box 1: ID Scope

style=’mso-bidi-font-size:10.5pt;font-family:”Arial”,sans-serif;mso-fareast-font-family:

Helvetica;mso-bidi-font-weight:bold’>In the Azure portal, select the Overview

blade for your Device Provisioning service and copy the ID Scope value. The ID

Scope is generated by the service and guarantees uniqueness. It is immutable

and used to uniquely identify the registration IDs.

style=’mso-bidi-font-size:10.5pt;font-family:”Arial”,sans-serif;mso-fareast-font-family:

Helvetica;mso-bidi-font-weight:bold’>Box 2: Global device endpoint

style=’mso-bidi-font-size:10.5pt;font-family:”Arial”,sans-serif;mso-fareast-font-family:

Helvetica;mso-bidi-font-weight:bold’>The global_prov_uri variable, which allows

the IoT Hub client registration API IoTHubClient_LL_CreateFromDeviceAuth to

connect with the designated Device Provisioning Service instance.

style=’mso-bidi-font-size:10.5pt;font-family:”Arial”,sans-serif;mso-fareast-font-family:

Helvetica;mso-bidi-font-weight:bold’>Example code:

style=’mso-bidi-font-size:10.5pt;font-family:”Arial”,sans-serif;mso-fareast-font-family:

Helvetica;mso-bidi-font-weight:bold’>static const char* global_prov_uri =

"global.azure-devices-provisioning.net"; static const char* id_scope

= "[ID Scope]";

style=’mso-bidi-font-size:10.5pt;font-family:”Arial”,sans-serif;mso-fareast-font-family:

Helvetica;mso-bidi-font-weight:bold’>

style=’mso-bidi-font-size:10.5pt;font-family:”Arial”,sans-serif;mso-fareast-font-family:

Helvetica;mso-bidi-font-weight:bold’>6.How should you complete the GROUP BY

clause to meet the Streaming Analytics requirements?

style=’mso-bidi-font-size:10.5pt;font-family:”Arial”,sans-serif;mso-fareast-font-family:

Helvetica;mso-bidi-font-weight:bold’>A. GROUP BY HoppingWindow(Second, 60, 30)

style=’mso-bidi-font-size:10.5pt;font-family:”Arial”,sans-serif;mso-fareast-font-family:

Helvetica;mso-bidi-font-weight:bold’>B. GROUP BY TumblingWindow(Second, 30)

style=’mso-bidi-font-size:10.5pt;font-family:”Arial”,sans-serif;mso-fareast-font-family:

Helvetica;mso-bidi-font-weight:bold’>C. GROUP BY SlidingWindow(Second, 30)

style=’mso-bidi-font-size:10.5pt;font-family:”Arial”,sans-serif;mso-fareast-font-family:

Helvetica;mso-bidi-font-weight:bold’>D. GROUP BY SessionWindow(Second, 30, 60)

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“Times New Roman”‘>

style=’mso-bidi-font-size:10.5pt;font-family:”Arial”,sans-serif;mso-fareast-font-family:

Helvetica;mso-bidi-font-weight:bold’>Scenario: You plan to use a 30-second

period to calculate the average temperature reading of the sensors.

style=’mso-bidi-font-size:10.5pt;font-family:”Arial”,sans-serif;mso-fareast-font-family:

Helvetica;mso-bidi-font-weight:bold’>Tumbling window functions are used to

segment a data stream into distinct time segments and perform a function

against them, such as the example below. The key differentiators of a Tumbling

window are that they repeat, do not overlap, and an event cannot belong to more

than one tumbling window.

style=’mso-bidi-font-size:10.5pt;font-family:”Arial”,sans-serif;mso-fareast-font-family:

Helvetica;mso-bidi-font-weight:bold’>InAnswers:

lang=EN-US style=’mso-bidi-font-size:10.5pt;font-family:”Arial”,sans-serif;

mso-fareast-font-family:Helvetica;mso-bidi-font-weight:bold’>A: Hopping window

functions hop forward in time by a fixed period. It may be easy to think of

them as Tumbling windows that can overlap, so events can belong to more than

one Hopping window result set.

style=’mso-bidi-font-size:10.5pt;font-family:”Arial”,sans-serif;mso-fareast-font-family:

Helvetica;mso-bidi-font-weight:bold’>Reference: https://docs.microsoft.com/en-us/azure/stream-analytics/stream-analytics-window-functions

style=’mso-bidi-font-size:10.5pt;font-family:”Arial”,sans-serif;mso-fareast-font-family:

Helvetica;mso-bidi-font-weight:bold’>

style=’mso-bidi-font-size:10.5pt;font-family:”Arial”,sans-serif;mso-fareast-font-family:

Helvetica;mso-bidi-font-weight:bold’>7.HOTSPOT

style=’mso-bidi-font-size:10.5pt;font-family:”Arial”,sans-serif;mso-fareast-font-family:

Helvetica;mso-bidi-font-weight:bold’>You need to use message enrichment to add

additional device information to messages sent from the IoT gateway devices

when the reported temperature exceeds a critical threshold.

style=’mso-bidi-font-size:10.5pt;font-family:”Arial”,sans-serif;mso-fareast-font-family:

Helvetica;mso-bidi-font-weight:bold’>How should you configure the enrich message

values? To answer, select the appropriate options in the answer area.lang=EN-US style=’mso-bidi-font-size:10.5pt;font-family:”Arial”,sans-serif;

mso-fareast-font-family:等线;mso-bidi-font-weight:bold’> style=’mso-bidi-font-size:10.5pt;font-family:”Arial”,sans-serif;mso-fareast-font-family:

Helvetica;mso-bidi-font-weight:bold’>NOTE: Each correct selection is worth one

point.

style=’mso-bidi-font-size:10.5pt;font-family:”Arial”,sans-serif;mso-no-proof:

yes’>src=”AZ-220%20V9.files/image014.jpg” v:shapes=”_x0000_i1031″>lang=EN-US style=’mso-bidi-font-size:10.5pt;font-family:”Arial”,sans-serif;

mso-fareast-font-family:”Times New Roman”;mso-bidi-font-weight:bold’>

style=’mso-bidi-font-size:10.5pt;font-family:”Arial”,sans-serif;mso-fareast-font-family:

“Times New Roman”‘>

style=’mso-bidi-font-size:10.5pt;font-family:”Arial”,sans-serif;mso-fareast-font-family:

等线;mso-bidi-font-weight:bold’>

style=’mso-bidi-font-size:10.5pt;font-family:”Arial”,sans-serif;mso-font-kerning:

0pt;mso-ansi-language:X-NONE’>- Calculate the median rate of the telemetry

across the entire devices that exceed the median rate by a factor of 4.

style=’mso-bidi-font-size:10.5pt;font-family:”Arial”,sans-serif;mso-fareast-font-family:

Helvetica;mso-bidi-font-weight:bold’>What should you recommend?

lang=EN-US style=’mso-bidi-font-size:10.5pt;font-family:”Arial”,sans-serif;

mso-fareast-font-family:Helvetica;mso-bidi-font-weight:bold’>A. XML

lang=EN-US style=’mso-bidi-font-size:10.5pt;font-family:”Arial”,sans-serif;

mso-fareast-font-family:Helvetica;mso-bidi-font-weight:bold’>B. Avro

lang=EN-US style=’mso-bidi-font-size:10.5pt;font-family:”Arial”,sans-serif;

mso-fareast-font-family:Helvetica;mso-bidi-font-weight:bold’>C. JSON

style=’mso-bidi-font-size:10.5pt;font-family:”Arial”,sans-serif;mso-fareast-font-family:

“Times New Roman”‘>

style=’mso-bidi-font-size:10.5pt;font-family:”Arial”,sans-serif;mso-fareast-font-family:

Helvetica;mso-bidi-font-weight:bold’>Scenario: POV Requirements

style=’mso-bidi-font-size:10.5pt;font-family:”Arial”,sans-serif;mso-fareast-font-family:

Helvetica;mso-bidi-font-weight:bold’>Ensure that all message content during

this phase is human readable to simplify debugging.

style=’mso-bidi-font-size:10.5pt;font-family:”Arial”,sans-serif;mso-fareast-font-family:

Helvetica;mso-bidi-font-weight:bold’>Avro uses a binary format, so it is not

human readable.

style=’mso-bidi-font-size:10.5pt;font-family:”Arial”,sans-serif;mso-fareast-font-family:

Helvetica;mso-bidi-font-weight:bold’>The more lightweight JSON (Javascript

object notation) has become a popular alternative to XML for various reasons. A

couple obvious ones are: Less verbose- XML uses more words than necessary

style=’mso-bidi-font-size:10.5pt;font-family:”Arial”,sans-serif;mso-fareast-font-family:

Helvetica;mso-bidi-font-weight:bold’>JSON is faster- Parsing XML software is

slow and cumbersome.

style=’mso-bidi-font-size:10.5pt;font-family:”Arial”,sans-serif;mso-fareast-font-family:

Helvetica;mso-bidi-font-weight:bold’>Reference: https://blog.cloud-elements.com/json-better-xml

style=’mso-bidi-font-size:10.5pt;font-family:”Arial”,sans-serif;mso-fareast-font-family:

Helvetica;mso-bidi-font-weight:bold’>

style=’mso-bidi-font-size:10.5pt;font-family:”Arial”,sans-serif;mso-fareast-font-family:

Helvetica;mso-bidi-font-weight:bold’>10.You need to store the real-time alerts

generated by Stream Analytics to meet the technical requirements.

style=’mso-bidi-font-size:10.5pt;font-family:”Arial”,sans-serif;mso-fareast-font-family:

Helvetica;mso-bidi-font-weight:bold’>Which type of Stream Analytics output

should you configure?

style=’mso-bidi-font-size:10.5pt;font-family:”Arial”,sans-serif;mso-fareast-font-family:

Helvetica;mso-bidi-font-weight:bold’>A. Azure Blob storage

style=’mso-bidi-font-size:10.5pt;font-family:”Arial”,sans-serif;mso-fareast-font-family:

Helvetica;mso-bidi-font-weight:bold’>B. Microsoft Power BI

style=’mso-bidi-font-size:10.5pt;font-family:”Arial”,sans-serif;mso-fareast-font-family:

Helvetica;mso-bidi-font-weight:bold’>C. Azure Cosmos DB

style=’mso-bidi-font-size:10.5pt;font-family:”Arial”,sans-serif;mso-fareast-font-family:

Helvetica;mso-bidi-font-weight:bold’>D. Azure SQL Database

style=’mso-bidi-font-size:10.5pt;font-family:”Arial”,sans-serif;mso-fareast-font-family:

“Times New Roman”‘>

style=’mso-bidi-font-size:10.5pt;font-family:”Arial”,sans-serif;mso-fareast-font-family:

Helvetica;mso-bidi-font-weight:bold’>When you create a Time Series Insights

Preview pay-as-you-go (PAYG) SKU environment, you create two Azure resources:

style=’mso-bidi-font-size:10.5pt;font-family:”Arial”,sans-serif;mso-fareast-font-family:

Helvetica;mso-bidi-font-weight:bold’>An Azure Storage general-purpose V1 blob account

for cold data storage.

style=’mso-bidi-font-size:10.5pt;font-family:”Arial”,sans-serif;mso-fareast-font-family:

Helvetica;mso-bidi-font-weight:bold’>An Azure Time Series Insights Preview

environment that can be configured for warm data storage.

style=’mso-bidi-font-size:10.5pt;font-family:”Arial”,sans-serif;mso-fareast-font-family:

Helvetica;mso-bidi-font-weight:bold’>Reference: https://docs.microsoft.com/en-us/azure/time-series-insights/time-series-insights-update-

style=’mso-bidi-font-size:10.5pt;font-family:”Arial”,sans-serif;mso-fareast-font-family:

Helvetica;mso-bidi-font-weight:bold’>storage-ingress

style=’mso-bidi-font-size:10.5pt;font-family:”Arial”,sans-serif;mso-fareast-font-family:

Helvetica;mso-bidi-font-weight:bold’>

style=’mso-bidi-font-size:10.5pt;font-family:”Arial”,sans-serif;mso-fareast-font-family:

Helvetica;mso-bidi-font-weight:bold’>11.You need to configure Stream Analytics

to meet the POV requirements.

style=’mso-bidi-font-size:10.5pt;font-family:”Arial”,sans-serif;mso-fareast-font-family:

Helvetica;mso-bidi-font-weight:bold’>What are two ways to achieve the goal?

Each Answer presents a complete solution.

style=’mso-bidi-font-size:10.5pt;font-family:”Arial”,sans-serif;mso-fareast-font-family:

Helvetica;mso-bidi-font-weight:bold’>NOTE: Each correct selection is worth one

point.

style=’mso-bidi-font-size:10.5pt;font-family:”Arial”,sans-serif;mso-fareast-font-family:

Helvetica;mso-bidi-font-weight:bold’>A. From IoT Hub, create a custom event hub

endpoint, and then configure the endpoint as an input to Stream Analytics.

style=’mso-bidi-font-size:10.5pt;font-family:”Arial”,sans-serif;mso-fareast-font-family:

Helvetica;mso-bidi-font-weight:bold’>B. Create a Stream Analytics module, and

then deploy the module to all IoT Edge devices in the fleet.

style=’mso-bidi-font-size:10.5pt;font-family:”Arial”,sans-serif;mso-fareast-font-family:

Helvetica;mso-bidi-font-weight:bold’>C. Create an input in Stream Analytics

that uses the built-in events endpoint of IoT Hub as the source.

style=’mso-bidi-font-size:10.5pt;font-family:”Arial”,sans-serif;mso-fareast-font-family:

Helvetica;mso-bidi-font-weight:bold’>D. Route telemetry to an Azure Blob

storage custom endpoint, and then configure the Blob storage as a reference

input for Stream Analytics.

style=’mso-bidi-font-size:10.5pt;font-family:”Arial”,sans-serif;mso-fareast-font-family:

“Times New Roman”‘>

style=’mso-bidi-font-size:10.5pt;font-family:”Arial”,sans-serif;mso-fareast-font-family:

Helvetica;mso-bidi-font-weight:bold’>

style=’mso-bidi-font-size:10.5pt;font-family:”Arial”,sans-serif;mso-fareast-font-family:

Helvetica;mso-bidi-font-weight:bold’>12.During the POV phase, telemetry from

IoT Hub stops flowing to the hot path. The cold path continues to work.

style=’mso-bidi-font-size:10.5pt;font-family:”Arial”,sans-serif;mso-fareast-font-family:

Helvetica;mso-bidi-font-weight:bold’>What should you do to restore the hot path?

style=’mso-bidi-font-size:10.5pt;font-family:”Arial”,sans-serif;mso-fareast-font-family:

Helvetica;mso-bidi-font-weight:bold’>A. Disable the fallback route.

style=’mso-bidi-font-size:10.5pt;font-family:”Arial”,sans-serif;mso-fareast-font-family:

Helvetica;mso-bidi-font-weight:bold’>B. Run the Test all routes action.

style=’mso-bidi-font-size:10.5pt;font-family:”Arial”,sans-serif;mso-fareast-font-family:

Helvetica;mso-bidi-font-weight:bold’>C. Create an explicit route for the hot

path.

style=’mso-bidi-font-size:10.5pt;font-family:”Arial”,sans-serif;mso-fareast-font-family:

Helvetica;mso-bidi-font-weight:bold’>D. Modify cold-route to send only some

telemetry data to the cold path.

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“Times New Roman”‘>

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Helvetica;mso-bidi-font-weight:bold’>

style=’mso-bidi-font-size:10.5pt;font-family:”Arial”,sans-serif;mso-fareast-font-family:

Helvetica;mso-bidi-font-weight:bold’>13. Topic 3, Misc. Questions

style=’mso-bidi-font-size:10.5pt;font-family:”Arial”,sans-serif;mso-fareast-font-family:

Helvetica;mso-bidi-font-weight:bold’>

style=’mso-bidi-font-size:10.5pt;font-family:”Arial”,sans-serif;mso-fareast-font-family:

Helvetica;mso-bidi-font-weight:bold’>You have an existing Azure IoT hub.

style=’mso-bidi-font-size:10.5pt;font-family:”Arial”,sans-serif;mso-fareast-font-family:

Helvetica;mso-bidi-font-weight:bold’>You use IoT Hub jobs to schedule long

running tasks on connected devices.

style=’mso-bidi-font-size:10.5pt;font-family:”Arial”,sans-serif;mso-fareast-font-family:

Helvetica;mso-bidi-font-weight:bold’>Which two operations do the IoT Hub jobs support

directly? Each correct answer presents a complete solution.lang=EN-US style=’mso-bidi-font-size:10.5pt;font-family:”Arial”,sans-serif;

mso-fareast-font-family:等线;mso-bidi-font-weight:bold’> style=’mso-bidi-font-size:10.5pt;font-family:”Arial”,sans-serif;mso-fareast-font-family:

Helvetica;mso-bidi-font-weight:bold’>NOTE: Each correct selection is worth one

point.

style=’mso-bidi-font-size:10.5pt;font-family:”Arial”,sans-serif;mso-fareast-font-family:

Helvetica;mso-bidi-font-weight:bold’>A. Trigger Azure functions.

style=’mso-bidi-font-size:10.5pt;font-family:”Arial”,sans-serif;mso-fareast-font-family:

Helvetica;mso-bidi-font-weight:bold’>B. Invoke direct methods.

style=’mso-bidi-font-size:10.5pt;font-family:”Arial”,sans-serif;mso-fareast-font-family:

Helvetica;mso-bidi-font-weight:bold’>C. Update desired properties.

style=’mso-bidi-font-size:10.5pt;font-family:”Arial”,sans-serif;mso-fareast-font-family:

Helvetica;mso-bidi-font-weight:bold’>D. Send cloud-to-device messages.

style=’mso-bidi-font-size:10.5pt;font-family:”Arial”,sans-serif;mso-fareast-font-family:

Helvetica;mso-bidi-font-weight:bold’>E. Disable IoT device registry entries.

style=’mso-bidi-font-size:10.5pt;font-family:”Arial”,sans-serif;mso-fareast-font-family:

“Times New Roman”‘>

style=’mso-bidi-font-size:10.5pt;font-family:”Arial”,sans-serif;mso-fareast-font-family:

“Times New Roman”‘>

style=’mso-bidi-font-size:10.5pt;font-family:”Arial”,sans-serif;mso-fareast-font-family:

Helvetica;mso-bidi-font-weight:bold’>Box 1: AMQP

style=’mso-bidi-font-size:10.5pt;font-family:”Arial”,sans-serif;mso-fareast-font-family:

Helvetica;mso-bidi-font-weight:bold’>Use AMQP on field and cloud gateways to

take advantage of connection multiplexing across devices.

style=’mso-bidi-font-size:10.5pt;font-family:”Arial”,sans-serif;mso-fareast-font-family:

Helvetica;mso-bidi-font-weight:bold’>Box 2: MQTT

style=’mso-bidi-font-size:10.5pt;font-family:”Arial”,sans-serif;mso-fareast-font-family:

Helvetica;mso-bidi-font-weight:bold’>MQTT is used on all devices that do not

require to connect multiple devices (each with its own per-device credentials)

over the same TLS connection.

style=’mso-bidi-font-size:10.5pt;font-family:”Arial”,sans-serif;mso-fareast-font-family:

Helvetica;mso-bidi-font-weight:bold’>Box 3: HTTPS

style=’mso-bidi-font-size:10.5pt;font-family:”Arial”,sans-serif;mso-fareast-font-family:

Helvetica;mso-bidi-font-weight:bold’>Use HTTPS for devices that cannot support

other protocols.

style=’mso-bidi-font-size:10.5pt;font-family:”Arial”,sans-serif;mso-fareast-font-family:

Helvetica;mso-bidi-font-weight:bold’>

style=’mso-bidi-font-size:10.5pt;font-family:”Arial”,sans-serif;mso-fareast-font-family:

Helvetica;mso-bidi-font-weight:bold’>15.You have an IoT device that gathers

data in a CSV file named Sensors.csv.

style=’mso-bidi-font-size:10.5pt;font-family:”Arial”,sans-serif;mso-fareast-font-family:

Helvetica;mso-bidi-font-weight:bold’>You deploy an Azure IoT hub that is

accessible at ContosoHub.azure-devices.net. You need to ensure that Sensors.csv

is uploaded to the IoT hub.

style=’mso-bidi-font-size:10.5pt;font-family:”Arial”,sans-serif;mso-fareast-font-family:

Helvetica;mso-bidi-font-weight:bold’>Which two actions should you perform? Each

correct answer presents part of the solution.

style=’mso-bidi-font-size:10.5pt;font-family:”Arial”,sans-serif;mso-fareast-font-family:

Helvetica;mso-bidi-font-weight:bold’>A. Upload Sensors.csv by using the IoT Hub

REST API.

style=’mso-bidi-font-size:10.5pt;font-family:”Arial”,sans-serif;mso-fareast-font-family:

Helvetica;mso-bidi-font-weight:bold’>B. From the Azure subscription, select the

IoT hub, select Message routing, and then configure a route to storage.

style=’mso-bidi-font-size:10.5pt;font-family:”Arial”,sans-serif;mso-fareast-font-family:

Helvetica;mso-bidi-font-weight:bold’>C. From the Azure subscription, select the

IoT hub, select File upload, and then configure a storage container.

style=’mso-bidi-font-size:10.5pt;font-family:”Arial”,sans-serif;mso-fareast-font-family:

Helvetica;mso-bidi-font-weight:bold’>D. Configure the device to use a GET

request to ContosoHub.azure-devices.net/devices/ContosoDevice1/

files/notifications.

style=’mso-bidi-font-size:10.5pt;font-family:”Arial”,sans-serif;mso-fareast-font-family:

“Times New Roman”‘>

lang=EN-US style=’mso-bidi-font-size:10.5pt;font-family:”Arial”,sans-serif;

mso-fareast-font-family:Helvetica;mso-bidi-font-weight:bold’>C: To use the file

upload functionality in IoT Hub, you must first associate an Azure Storage

account with your hub. Select File upload to display a list of file upload

properties for the IoT hub that is being modified.

style=’mso-bidi-font-size:10.5pt;font-family:”Arial”,sans-serif;mso-fareast-font-family:

Helvetica;mso-bidi-font-weight:bold’>For Storage container: Use the Azure

portal to select a blob container in an Azure Storage account in your current Azure

subscription to associate with your IoT Hub. If necessary, you can create an

Azure Storage account on the Storage accounts blade and blob container on the

Containers

lang=EN-US style=’mso-bidi-font-size:10.5pt;font-family:”Arial”,sans-serif;

mso-fareast-font-family:Helvetica;mso-bidi-font-weight:bold’>A: IoT Hub has an

endpoint specifically for devices to request a SAS URI for storage to upload a

file. To start the file upload process, the device sends a POST request to {iot

hub}.azure-devices.net/devices/{deviceId}/ files with the following JSON body:

style=’mso-bidi-font-size:10.5pt;font-family:”Arial”,sans-serif;mso-fareast-font-family:

Helvetica;mso-bidi-font-weight:bold’>{

style=’mso-bidi-font-size:10.5pt;font-family:”Arial”,sans-serif;mso-fareast-font-family:

Helvetica;mso-bidi-font-weight:bold’>"blobName": "{name of the

file for which a SAS URI will be generated}"

style=’mso-bidi-font-size:10.5pt;font-family:”Arial”,sans-serif;mso-fareast-font-family:

Helvetica;mso-bidi-font-weight:bold’>}

style=’mso-bidi-font-size:10.5pt;font-family:”Arial”,sans-serif;mso-fareast-font-family:

Helvetica;mso-bidi-font-weight:bold’>Reference: https://github.com/MicrosoftDocs/azure-docs/blob/master/articles/iot-hub/iot-hub-configure-file-upload.md

style=’mso-bidi-font-size:10.5pt;font-family:”Arial”,sans-serif;mso-fareast-font-family:

Helvetica;mso-bidi-font-weight:bold’>

style=’mso-bidi-font-size:10.5pt;font-family:”Arial”,sans-serif;mso-fareast-font-family:

Helvetica;mso-bidi-font-weight:bold’>16.You have an Azure IoT hub that uses a

Device Provision Service instance.

style=’mso-bidi-font-size:10.5pt;font-family:”Arial”,sans-serif;mso-fareast-font-family:

Helvetica;mso-bidi-font-weight:bold’>You plan to deploy 100 IoT devices.

style=’mso-bidi-font-size:10.5pt;font-family:”Arial”,sans-serif;mso-fareast-font-family:

Helvetica;mso-bidi-font-weight:bold’>You need to confirm the identity of the

devices by using the Device Provision Service.

style=’mso-bidi-font-size:10.5pt;font-family:”Arial”,sans-serif;mso-fareast-font-family:

Helvetica;mso-bidi-font-weight:bold’>Which three device attestation mechanisms

can you use? Each correct answer presents a complete solution.lang=EN-US style=’mso-bidi-font-size:10.5pt;font-family:”Arial”,sans-serif;

mso-fareast-font-family:等线;mso-bidi-font-weight:bold’> style=’mso-bidi-font-size:10.5pt;font-family:”Arial”,sans-serif;mso-fareast-font-family:

Helvetica;mso-bidi-font-weight:bold’>NOTE: Each correct selection is worth one

point.

style=’mso-bidi-font-size:10.5pt;font-family:”Arial”,sans-serif;mso-fareast-font-family:

Helvetica;mso-bidi-font-weight:bold’>A. X.509 certificates

style=’mso-bidi-font-size:10.5pt;font-family:”Arial”,sans-serif;mso-fareast-font-family:

Helvetica;mso-bidi-font-weight:bold’>B. Trusted Platform Module (TPM) 2.0

style=’mso-bidi-font-size:10.5pt;font-family:”Arial”,sans-serif;mso-fareast-font-family:

Helvetica;mso-bidi-font-weight:bold’>C. Trusted Platform Module (TPM) 1.2

style=’mso-bidi-font-size:10.5pt;font-family:”Arial”,sans-serif;mso-fareast-font-family:

Helvetica;mso-bidi-font-weight:bold’>D. Symmetric key

style=’mso-bidi-font-size:10.5pt;font-family:”Arial”,sans-serif;mso-fareast-font-family:

Helvetica;mso-bidi-font-weight:bold’>E. Device Identity Composition Engine

(DICE)

style=’mso-bidi-font-size:10.5pt;font-family:”Arial”,sans-serif;mso-fareast-font-family:

“Times New Roman”‘>

style=’mso-bidi-font-size:10.5pt;font-family:”Arial”,sans-serif;mso-fareast-font-family:

Helvetica;mso-bidi-font-weight:bold’>Reference: https://docs.microsoft.com/en-us/azure/iot-dps/concepts-service#attestation-mechanism

style=’mso-bidi-font-size:10.5pt;font-family:”Arial”,sans-serif;mso-fareast-font-family:

Helvetica;mso-bidi-font-weight:bold’>

style=’mso-bidi-font-size:10.5pt;font-family:”Arial”,sans-serif;mso-fareast-font-family:

Helvetica;mso-bidi-font-weight:bold’>17.You have an Azure IoT solution that

includes an Azure IoT hub and 100 Azure IoT Edge devices.

style=’mso-bidi-font-size:10.5pt;font-family:”Arial”,sans-serif;mso-fareast-font-family:

Helvetica;mso-bidi-font-weight:bold’>You plan to deploy the IoT Edge devices to

external networks. The firewalls of the external networks only allow traffic on

port 80 and port 443.

style=’mso-bidi-font-size:10.5pt;font-family:”Arial”,sans-serif;mso-fareast-font-family:

Helvetica;mso-bidi-font-weight:bold’>You need to ensure that the devices can

connect to the IoT hub. The solution must minimize costs.

style=’mso-bidi-font-size:10.5pt;font-family:”Arial”,sans-serif;mso-fareast-font-family:

Helvetica;mso-bidi-font-weight:bold’>What should you do?

style=’mso-bidi-font-size:10.5pt;font-family:”Arial”,sans-serif;mso-fareast-font-family:

Helvetica;mso-bidi-font-weight:bold’>A. Configure the devices for extended

offline operations.

style=’mso-bidi-font-size:10.5pt;font-family:”Arial”,sans-serif;mso-fareast-font-family:

Helvetica;mso-bidi-font-weight:bold’>B. Configure the upstream protocol of the

devices to use MQTT over WebSocket.

style=’mso-bidi-font-size:10.5pt;font-family:”Arial”,sans-serif;mso-fareast-font-family:

Helvetica;mso-bidi-font-weight:bold’>C. Connect the external networks to the

IoT solution by using ExpressRoute.

style=’mso-bidi-font-size:10.5pt;font-family:”Arial”,sans-serif;mso-fareast-font-family:

Helvetica;mso-bidi-font-weight:bold’>D. Configure the devices to use an HTTPS

proxy.

style=’mso-bidi-font-size:10.5pt;font-family:”Arial”,sans-serif;mso-fareast-font-family:

“Times New Roman”‘>

style=’mso-bidi-font-size:10.5pt;font-family:”Arial”,sans-serif;mso-fareast-font-family:

Helvetica;mso-bidi-font-weight:bold’>MQTT over WebSockets uses port 443.

style=’mso-bidi-font-size:10.5pt;font-family:”Arial”,sans-serif;mso-fareast-font-family:

Helvetica;mso-bidi-font-weight:bold’>Reference: https://docs.microsoft.com/en-us/azure/iot-hub/iot-hub-devguide-protocols

style=’mso-bidi-font-size:10.5pt;font-family:”Arial”,sans-serif;mso-fareast-font-family:

Helvetica;mso-bidi-font-weight:bold’>

style=’mso-bidi-font-size:10.5pt;font-family:”Arial”,sans-serif;mso-fareast-font-family:

Helvetica;mso-bidi-font-weight:bold’>18.You have an Azure IoT solution that

includes an Azure IoT hub.

style=’mso-bidi-font-size:10.5pt;font-family:”Arial”,sans-serif;mso-fareast-font-family:

Helvetica;mso-bidi-font-weight:bold’>You plan to deploy 10,000 IoT devices.

style=’mso-bidi-font-size:10.5pt;font-family:”Arial”,sans-serif;mso-fareast-font-family:

Helvetica;mso-bidi-font-weight:bold’>You need to validate the performance of

the IoT solution while 10,000 concurrently connected devices stream telemetry.

The solution must minimize effort.

style=’mso-bidi-font-size:10.5pt;font-family:”Arial”,sans-serif;mso-fareast-font-family:

Helvetica;mso-bidi-font-weight:bold’>What should you deploy?

style=’mso-bidi-font-size:10.5pt;font-family:”Arial”,sans-serif;mso-fareast-font-family:

Helvetica;mso-bidi-font-weight:bold’>A. an Azure IoT Device Simulation from

Azure IoT Solution Accelerator

style=’mso-bidi-font-size:10.5pt;font-family:”Arial”,sans-serif;mso-fareast-font-family:

Helvetica;mso-bidi-font-weight:bold’>B. an Azure function, an IoT Hub device

SDK, and a timer trigger

style=’mso-bidi-font-size:10.5pt;font-family:”Arial”,sans-serif;mso-fareast-font-family:

Helvetica;mso-bidi-font-weight:bold’>C. Azure IoT Central application and a

template for the retail industry

style=’mso-bidi-font-size:10.5pt;font-family:”Arial”,sans-serif;mso-fareast-font-family:

Helvetica;mso-bidi-font-weight:bold’>D. an Azure IoT Edge gateway configured as

a protocol translation gateway

style=’mso-bidi-font-size:10.5pt;font-family:”Arial”,sans-serif;mso-fareast-font-family:

“Times New Roman”‘>

style=’mso-bidi-font-size:10.5pt;font-family:”Arial”,sans-serif;mso-fareast-font-family:

Helvetica;mso-bidi-font-weight:bold’>The IoT solution accelerators are complete,

ready-to-deploy IoT solutions that implement common IoT scenarios. The

scenarios include connected factory and device simulation.

style=’mso-bidi-font-size:10.5pt;font-family:”Arial”,sans-serif;mso-fareast-font-family:

Helvetica;mso-bidi-font-weight:bold’>Use the Device Simulation solution

accelerator to run simulated devices that generate realistic telemetry. You can

use this solution accelerator to test the behavior of the other solution

accelerators or to test your own custom IoT solutions.

style=’mso-bidi-font-size:10.5pt;font-family:”Arial”,sans-serif;mso-fareast-font-family:

Helvetica;mso-bidi-font-weight:bold’>Reference: https://docs.microsoft.com/en-us/azure/iot-accelerators/about-iot-accelerators

style=’mso-bidi-font-size:10.5pt;font-family:”Arial”,sans-serif;mso-fareast-font-family:

Helvetica;mso-bidi-font-weight:bold’>

style=’mso-bidi-font-size:10.5pt;font-family:”Arial”,sans-serif;mso-fareast-font-family:

Helvetica;mso-bidi-font-weight:bold’>19.You have an Azure IoT Edge device.

style=’mso-bidi-font-size:10.5pt;font-family:”Arial”,sans-serif;mso-fareast-font-family:

Helvetica;mso-bidi-font-weight:bold’>You need to modify the credentials used to

access the container registry.

style=’mso-bidi-font-size:10.5pt;font-family:”Arial”,sans-serif;mso-fareast-font-family:

Helvetica;mso-bidi-font-weight:bold’>What should you modify?

style=’mso-bidi-font-size:10.5pt;font-family:”Arial”,sans-serif;mso-fareast-font-family:

Helvetica;mso-bidi-font-weight:bold’>A. the @edgeHub module twin

style=’mso-bidi-font-size:10.5pt;font-family:”Arial”,sans-serif;mso-fareast-font-family:

Helvetica;mso-bidi-font-weight:bold’>B. the IoT Edge module

style=’mso-bidi-font-size:10.5pt;font-family:”Arial”,sans-serif;mso-fareast-font-family:

Helvetica;mso-bidi-font-weight:bold’>C. the $edgeAgent module twin

style=’mso-bidi-font-size:10.5pt;font-family:”Arial”,sans-serif;mso-fareast-font-family:

Helvetica;mso-bidi-font-weight:bold’>D. the Azure IoT Hub device twin

style=’mso-bidi-font-size:10.5pt;font-family:”Arial”,sans-serif;mso-fareast-font-family:

“Times New Roman”‘>

style=’mso-bidi-font-size:10.5pt;font-family:”Arial”,sans-serif;mso-fareast-font-family:

Helvetica;mso-bidi-font-weight:bold’>A. On the new Raspberry Pi device, modify

the connection string.

style=’mso-bidi-font-size:10.5pt;font-family:”Arial”,sans-serif;mso-fareast-font-family:

Helvetica;mso-bidi-font-weight:bold’>B. From Hub1, modify the device shared

access policy.

style=’mso-bidi-font-size:10.5pt;font-family:”Arial”,sans-serif;mso-fareast-font-family:

Helvetica;mso-bidi-font-weight:bold’>C. Upgrade Hub1 to the standard tier.

style=’mso-bidi-font-size:10.5pt;font-family:”Arial”,sans-serif;mso-fareast-font-family:

Helvetica;mso-bidi-font-weight:bold’>D. From Hub1, create a new consumer group.

style=’mso-bidi-font-size:10.5pt;font-family:”Arial”,sans-serif;mso-fareast-font-family:

Helvetica;mso-bidi-font-weight:bold’>E. From Hub1, create a new IoT device.

style=’mso-bidi-font-size:10.5pt;font-family:”Arial”,sans-serif;mso-fareast-font-family:

“Times New Roman”‘>

style=’mso-bidi-font-size:10.5pt;font-family:”Arial”,sans-serif;mso-fareast-font-family:

Helvetica;mso-bidi-font-weight:bold’>Note: Symptoms

style=’mso-bidi-font-size:10.5pt;font-family:”Arial”,sans-serif;mso-fareast-font-family:

Helvetica;mso-bidi-font-weight:bold’>You see the error 409002

LinkCreationConflict in logs along with device disconnection or cloud-to-device

message failure.

style=’mso-bidi-font-size:10.5pt;font-family:”Arial”,sans-serif;mso-fareast-font-family:

Helvetica;mso-bidi-font-weight:bold’>Cause

style=’mso-bidi-font-size:10.5pt;font-family:”Arial”,sans-serif;mso-fareast-font-family:

Helvetica;mso-bidi-font-weight:bold’>Generally, this error happens when IoT Hub

detects a client has more than one connection. In fact, when a new connection

request arrives for a device with an existing connection, IoT Hub closes the

existing connection with this error.

style=’mso-bidi-font-size:10.5pt;font-family:”Arial”,sans-serif;mso-fareast-font-family:

Helvetica;mso-bidi-font-weight:bold’>Reference:

style=’mso-bidi-font-size:10.5pt;font-family:”Arial”,sans-serif;mso-fareast-font-family:

Helvetica;mso-bidi-font-weight:bold’>https://docs.microsoft.com/en-us/azure/iot-hub/iot-hub-troubleshoot-error-409002-linkcreationconflict#symptoms

style=’mso-bidi-font-size:10.5pt;font-family:”Arial”,sans-serif;mso-fareast-font-family:

Helvetica;mso-bidi-font-weight:bold’>https://devblogs.microsoft.com/iotdev/understand-different-connection-strings-in-azure-iot-hub/

style=’mso-bidi-font-size:10.5pt;font-family:”Arial”,sans-serif;mso-fareast-font-family:

Helvetica;mso-bidi-font-weight:bold’>

style=’mso-bidi-font-size:10.5pt;font-family:”Arial”,sans-serif;mso-fareast-font-family:

Helvetica;mso-bidi-font-weight:bold’>21.Note: This question is part of a series

of questions that present the same scenario. Each question in the series

contains a unique solution that might meet the stated goals. Some question sets

might have more than one correct solution, while others might not have a

correct solution.

style=’mso-bidi-font-size:10.5pt;font-family:”Arial”,sans-serif;mso-fareast-font-family:

Helvetica;mso-bidi-font-weight:bold’>After you answer a question in this

question, you will NOT be able to return to it. As a result, these questions

will not appear in the review screen.

style=’mso-bidi-font-size:10.5pt;font-family:”Arial”,sans-serif;mso-fareast-font-family:

Helvetica;mso-bidi-font-weight:bold’>You have an Azure IoT solution that

includes an Azure IoT hub, a Device Provisioning Service instance, and 1,000

connected IoT devices.

style=’mso-bidi-font-size:10.5pt;font-family:”Arial”,sans-serif;mso-fareast-font-family:

Helvetica;mso-bidi-font-weight:bold’>All the IoT devices are provisioned

automatically by using one enrollment group. You need to temporarily disable

the IoT devices from the connecting to the IoT hub.

style=’mso-bidi-font-size:10.5pt;font-family:”Arial”,sans-serif;mso-fareast-font-family:

Helvetica;mso-bidi-font-weight:bold’>Solution: You delete the enrollment group

from the Device Provisioning Service.

style=’mso-bidi-font-size:10.5pt;font-family:”Arial”,sans-serif;mso-fareast-font-family:

Helvetica;mso-bidi-font-weight:bold’>Does the solution meet the goal?

lang=EN-US style=’mso-bidi-font-size:10.5pt;font-family:”Arial”,sans-serif;

mso-fareast-font-family:Helvetica;mso-bidi-font-weight:bold’>A. Yes

lang=EN-US style=’mso-bidi-font-size:10.5pt;font-family:”Arial”,sans-serif;

mso-fareast-font-family:Helvetica;mso-bidi-font-weight:bold’>B. No

style=’mso-bidi-font-size:10.5pt;font-family:”Arial”,sans-serif;mso-fareast-font-family:

“Times New Roman”‘>

lang=EN-US style=’mso-bidi-font-size:10.5pt;font-family:”Arial”,sans-serif;

mso-fareast-font-family:Helvetica;mso-bidi-font-weight:bold’>A. Device1

lang=EN-US style=’mso-bidi-font-size:10.5pt;font-family:”Arial”,sans-serif;

mso-fareast-font-family:Helvetica;mso-bidi-font-weight:bold’>B. Device2

lang=EN-US style=’mso-bidi-font-size:10.5pt;font-family:”Arial”,sans-serif;

mso-fareast-font-family:Helvetica;mso-bidi-font-weight:bold’>C. Device3

lang=EN-US style=’mso-bidi-font-size:10.5pt;font-family:”Arial”,sans-serif;

mso-fareast-font-family:Helvetica;mso-bidi-font-weight:bold’>D. Device4

style=’mso-bidi-font-size:10.5pt;font-family:”Arial”,sans-serif;mso-fareast-font-family:

“Times New Roman”‘>

style=’mso-bidi-font-size:10.5pt;font-family:”Arial”,sans-serif;mso-fareast-font-family:

Helvetica;mso-bidi-font-weight:bold’>Azure IoT Edge runs great on devices as

small as a Raspberry Pi3 to server grade hardware.

style=’mso-bidi-font-size:10.5pt;font-family:”Arial”,sans-serif;mso-fareast-font-family:

Helvetica;mso-bidi-font-weight:bold’>Tier 1.

style=’mso-bidi-font-size:10.5pt;font-family:”Arial”,sans-serif;mso-fareast-font-family:

Helvetica;mso-bidi-font-weight:bold’>The systems listed in the following table

are supported by Microsoft, either generally available or in public preview,

and are tested with each new release.

style=’mso-bidi-font-size:10.5pt;font-family:”Arial”,sans-serif;mso-no-proof:

yes’>src=”AZ-220%20V9.files/image034.jpg” v:shapes=”_x0000_i1041″>lang=EN-US style=’mso-bidi-font-size:10.5pt;font-family:”Arial”,sans-serif;

mso-fareast-font-family:”Times New Roman”;mso-bidi-font-weight:bold’>

style=’mso-bidi-font-size:10.5pt;font-family:”Arial”,sans-serif;mso-fareast-font-family:

Helvetica;mso-bidi-font-weight:bold’>Reference: https://docs.microsoft.com/en-us/azure/iot-edge/support

style=’mso-bidi-font-size:10.5pt;font-family:”Arial”,sans-serif;mso-fareast-font-family:

Helvetica;mso-bidi-font-weight:bold’>

style=’mso-bidi-font-size:10.5pt;font-family:”Arial”,sans-serif;mso-fareast-font-family:

Helvetica;mso-bidi-font-weight:bold’>23.DRAG DROP

style=’mso-bidi-font-size:10.5pt;font-family:”Arial”,sans-serif;mso-fareast-font-family:

Helvetica;mso-bidi-font-weight:bold’>You need to install the Azure IoT Edge

runtime on a new device that runs Windows 10 IoT Enterprise.

style=’mso-bidi-font-size:10.5pt;font-family:”Arial”,sans-serif;mso-fareast-font-family:

Helvetica;mso-bidi-font-weight:bold’>In which order should you perform the

actions? To answer, move the appropriate actions from the list of actions to

the answer area and arrange them in the correct order.

style=’mso-bidi-font-size:10.5pt;font-family:”Arial”,sans-serif;mso-bidi-font-weight:

bold’>src=”AZ-220%20V9.files/image036.jpg” v:shapes=”_x0000_i1042″>lang=EN-US style=’mso-bidi-font-size:10.5pt;font-family:”Arial”,sans-serif;

mso-fareast-font-family:”Times New Roman”;mso-bidi-font-weight:bold’>

style=’mso-bidi-font-size:10.5pt;font-family:”Arial”,sans-serif;mso-fareast-font-family:

“Times New Roman”‘>

lang=EN-US style=’mso-bidi-font-size:10.5pt;font-family:”Arial”,sans-serif;

mso-fareast-font-family:Helvetica;mso-bidi-font-weight:bold’>- Checks that your

Windows machine is on a supported version.

lang=EN-US style=’mso-bidi-font-size:10.5pt;font-family:”Arial”,sans-serif;

mso-fareast-font-family:Helvetica;mso-bidi-font-weight:bold’>- Turns on the

containers feature.

lang=EN-US style=’mso-bidi-font-size:10.5pt;font-family:”Arial”,sans-serif;

mso-fareast-font-family:Helvetica;mso-bidi-font-weight:bold’>- Downloads the

moby engine and the IoT Edge runtime.

style=’mso-bidi-font-size:10.5pt;font-family:”Arial”,sans-serif;mso-fareast-font-family:

Helvetica;mso-bidi-font-weight:bold’>Step 3: From an elevated PowerShell

prompt, run the Initialize-IoTEdge cmdlet

style=’mso-bidi-font-size:10.5pt;font-family:”Arial”,sans-serif;mso-fareast-font-family:

Helvetica;mso-bidi-font-weight:bold’>Step 4: Enter the IoT Edge device

connection string.

style=’mso-bidi-font-size:10.5pt;font-family:”Arial”,sans-serif;mso-fareast-font-family:

Helvetica;mso-bidi-font-weight:bold’>Configure the IoT Edge device with a

device connection string.

style=’mso-bidi-font-size:10.5pt;font-family:”Arial”,sans-serif;mso-fareast-font-family:

Helvetica;mso-bidi-font-weight:bold’>

style=’mso-bidi-font-size:10.5pt;font-family:”Arial”,sans-serif;mso-fareast-font-family:

Helvetica;mso-bidi-font-weight:bold’>24.You create an Azure IoT hub by running

the following command.

style=’mso-bidi-font-size:10.5pt;font-family:”Arial”,sans-serif;mso-fareast-font-family:

Helvetica;mso-bidi-font-weight:bold’>az iot hub create –resource-group

MyResourceGroup –name MyIotHub –sku B1 — location westus –partition-count 4

style=’mso-bidi-font-size:10.5pt;font-family:”Arial”,sans-serif;mso-fareast-font-family:

Helvetica;mso-bidi-font-weight:bold’>What does MylotHub support?

style=’mso-bidi-font-size:10.5pt;font-family:”Arial”,sans-serif;mso-fareast-font-family:

Helvetica;mso-bidi-font-weight:bold’>A. Device Provisioning Service

style=’mso-bidi-font-size:10.5pt;font-family:”Arial”,sans-serif;mso-fareast-font-family:

Helvetica;mso-bidi-font-weight:bold’>B. cloud-to-device messaging

style=’mso-bidi-font-size:10.5pt;font-family:”Arial”,sans-serif;mso-fareast-font-family:

Helvetica;mso-bidi-font-weight:bold’>C. Azure IoT Edge

style=’mso-bidi-font-size:10.5pt;font-family:”Arial”,sans-serif;mso-fareast-font-family:

Helvetica;mso-bidi-font-weight:bold’>D. device twins

style=’mso-bidi-font-size:10.5pt;font-family:”Arial”,sans-serif;mso-fareast-font-family:

“Times New Roman”‘>

style=’mso-bidi-font-size:10.5pt;font-family:”Arial”,sans-serif;mso-fareast-font-family:

Helvetica;mso-bidi-font-weight:bold’>How should you configure the

azureiotsecurity module twin? To answer, drag the appropriate values to the

correct locations. Each value may be used once, more than once, or not at all.

You may need to drag the split bar between panes or scroll to view content.lang=EN-US style=’mso-bidi-font-size:10.5pt;font-family:”Arial”,sans-serif;

mso-fareast-font-family:等线;mso-bidi-font-weight:bold’> style=’mso-bidi-font-size:10.5pt;font-family:”Arial”,sans-serif;mso-fareast-font-family:

Helvetica;mso-bidi-font-weight:bold’>NOTE: Each correct selection is worth one

point.

style=’mso-bidi-font-size:10.5pt;font-family:”Arial”,sans-serif;mso-bidi-font-weight:

bold’>src=”AZ-220%20V9.files/image040.jpg” v:shapes=”_x0000_i1044″>lang=EN-US style=’mso-bidi-font-size:10.5pt;font-family:”Arial”,sans-serif;

mso-fareast-font-family:”Times New Roman”;mso-bidi-font-weight:bold’>

style=’mso-bidi-font-size:10.5pt;font-family:”Arial”,sans-serif;mso-fareast-font-family:

“Times New Roman”‘>

style=’mso-bidi-font-size:10.5pt;font-family:”Arial”,sans-serif;mso-fareast-font-family:

Helvetica;mso-bidi-font-weight:bold’>What should you add to the device template?

style=’mso-bidi-font-size:10.5pt;font-family:”Arial”,sans-serif;mso-fareast-font-family:

Helvetica;mso-bidi-font-weight:bold’>A. a Location property

style=’mso-bidi-font-size:10.5pt;font-family:”Arial”,sans-serif;mso-fareast-font-family:

Helvetica;mso-bidi-font-weight:bold’>B. a Location telemetry

style=’mso-bidi-font-size:10.5pt;font-family:”Arial”,sans-serif;mso-fareast-font-family:

Helvetica;mso-bidi-font-weight:bold’>C. a Cloud property

style=’mso-bidi-font-size:10.5pt;font-family:”Arial”,sans-serif;mso-fareast-font-family:

“Times New Roman”‘>

style=’mso-bidi-font-size:10.5pt;font-family:”Arial”,sans-serif;mso-fareast-font-family:

Helvetica;mso-bidi-font-weight:bold’>A. Create a SendGrid account in the same

resource group as the IoT Central application.

style=’mso-bidi-font-size:10.5pt;font-family:”Arial”,sans-serif;mso-fareast-font-family:

Helvetica;mso-bidi-font-weight:bold’>B. Add a condition that has Time

Aggregation set to Off.

style=’mso-bidi-font-size:10.5pt;font-family:”Arial”,sans-serif;mso-fareast-font-family:

Helvetica;mso-bidi-font-weight:bold’>C. Add a condition that has Aggregation

set to Minimum.

style=’mso-bidi-font-size:10.5pt;font-family:”Arial”,sans-serif;mso-fareast-font-family:

Helvetica;mso-bidi-font-weight:bold’>D. Add the Manager role to the IoT Central

application.

style=’mso-bidi-font-size:10.5pt;font-family:”Arial”,sans-serif;mso-fareast-font-family:

Helvetica;mso-bidi-font-weight:bold’>E. From IoT Central, create a telemetry

rule for the template.

style=’mso-bidi-font-size:10.5pt;font-family:”Arial”,sans-serif;mso-fareast-font-family:

“Times New Roman”‘>

style=’mso-bidi-font-size:10.5pt;font-family:”Arial”,sans-serif;mso-fareast-font-family:

Helvetica;mso-bidi-font-weight:bold’>Reference: https://docs.microsoft.com/en-us/azure/iot-central/core/tutorial-create-telemetry-rules

style=’mso-bidi-font-size:10.5pt;font-family:”Arial”,sans-serif;mso-fareast-font-family:

Helvetica;mso-bidi-font-weight:bold’>

style=’mso-bidi-font-size:10.5pt;font-family:”Arial”,sans-serif;mso-fareast-font-family:

Helvetica;mso-bidi-font-weight:bold’>28.DRAG DROP

style=’mso-bidi-font-size:10.5pt;font-family:”Arial”,sans-serif;mso-fareast-font-family:

Helvetica;mso-bidi-font-weight:bold’>You deploy an Azure IoT hub.

style=’mso-bidi-font-size:10.5pt;font-family:”Arial”,sans-serif;mso-fareast-font-family:

Helvetica;mso-bidi-font-weight:bold’>You need to demonstrate that the IoT hub

can receive messages from a device.

style=’mso-bidi-font-size:10.5pt;font-family:”Arial”,sans-serif;mso-fareast-font-family:

Helvetica;mso-bidi-font-weight:bold’>Which three actions should you perform in

sequence? To answer, move the appropriate actions from the list of actions to

the answer area and arrange them in the correct order.

style=’mso-bidi-font-size:10.5pt;font-family:”Arial”,sans-serif’>src=”AZ-220%20V9.files/image046.jpg” v:shapes=”_x0000_i1047″>lang=EN-US style=’mso-bidi-font-size:10.5pt;font-family:”Arial”,sans-serif;

mso-fareast-font-family:”Times New Roman”;mso-bidi-font-weight:bold’>

style=’mso-bidi-font-size:10.5pt;font-family:”Arial”,sans-serif;mso-fareast-font-family:

“Times New Roman”‘>

style=’mso-bidi-font-size:10.5pt;font-family:”Arial”,sans-serif;mso-fareast-font-family:

Helvetica;mso-bidi-font-weight:bold’>Step 1: Register a device in IoT Hub

style=’mso-bidi-font-size:10.5pt;font-family:”Arial”,sans-serif;mso-fareast-font-family:

Helvetica;mso-bidi-font-weight:bold’>Before you can use your IoT devices with

Azure IoT Edge, you must register them with your IoT hub. Once a device is

registered, you can retrieve a connection string to set up your device for IoT

Edge workloads.

style=’mso-bidi-font-size:10.5pt;font-family:”Arial”,sans-serif;mso-fareast-font-family:

Helvetica;mso-bidi-font-weight:bold’>Step 2: Configure the device connection

string on a device client.

style=’mso-bidi-font-size:10.5pt;font-family:”Arial”,sans-serif;mso-fareast-font-family:

Helvetica;mso-bidi-font-weight:bold’>When you’re ready to set up your device,

you need the connection string that links your physical device with its

identity in the IoT hub.

style=’mso-bidi-font-size:10.5pt;font-family:”Arial”,sans-serif;mso-fareast-font-family:

Helvetica;mso-bidi-font-weight:bold’>Step 3: Trigger a new send event from a

device client.

style=’mso-bidi-font-size:10.5pt;font-family:”Arial”,sans-serif;mso-fareast-font-family:

Helvetica;mso-bidi-font-weight:bold’>

style=’mso-bidi-font-size:10.5pt;font-family:”Arial”,sans-serif;mso-fareast-font-family:

Helvetica;mso-bidi-font-weight:bold’>29.You develop a custom Azure IoT Edge

module named temperature-module.

style=’mso-bidi-font-size:10.5pt;font-family:”Arial”,sans-serif;mso-fareast-font-family:

Helvetica;mso-bidi-font-weight:bold’>You publish temperature-module to a

private container registry named mycr.azurecr.io

style=’mso-bidi-font-size:10.5pt;font-family:”Arial”,sans-serif;mso-fareast-font-family:

Helvetica;mso-bidi-font-weight:bold’>You need to build a deployment manifest

for the IoT Edge device that will run temperature-module.

style=’mso-bidi-font-size:10.5pt;font-family:”Arial”,sans-serif;mso-fareast-font-family:

Helvetica;mso-bidi-font-weight:bold’>Which three container images should you

define in the manifest? Each correct answer presents part of the solution.lang=EN-US style=’mso-bidi-font-size:10.5pt;font-family:”Arial”,sans-serif;

mso-fareast-font-family:等线;mso-bidi-font-weight:bold’> style=’mso-bidi-font-size:10.5pt;font-family:”Arial”,sans-serif;mso-fareast-font-family:

Helvetica;mso-bidi-font-weight:bold’>NOTE: Each correct selection is worth one

point.

lang=EN-US style=’mso-bidi-font-size:10.5pt;font-family:”Arial”,sans-serif;

mso-fareast-font-family:Helvetica;mso-bidi-font-weight:bold’>A. mcr.microsoft.com/azureiotedge-simulated-temperature-sensor:1.0

lang=EN-US style=’mso-bidi-font-size:10.5pt;font-family:”Arial”,sans-serif;

mso-fareast-font-family:Helvetica;mso-bidi-font-weight:bold’>B. mcr.microsoft.com/azureiotedge-agent:1.0

lang=EN-US style=’mso-bidi-font-size:10.5pt;font-family:”Arial”,sans-serif;

mso-fareast-font-family:Helvetica;mso-bidi-font-weight:bold’>C. mcr.microsoft.com/iotedgedev:2.0

lang=EN-US style=’mso-bidi-font-size:10.5pt;font-family:”Arial”,sans-serif;

mso-fareast-font-family:Helvetica;mso-bidi-font-weight:bold’>D. mycr.azurecr.io/temperature-module:latest

lang=EN-US style=’mso-bidi-font-size:10.5pt;font-family:”Arial”,sans-serif;

mso-fareast-font-family:Helvetica;mso-bidi-font-weight:bold’>E. mcr.microsoft.com/azureiotedge-hub:1.0

style=’mso-bidi-font-size:10.5pt;font-family:”Arial”,sans-serif;mso-fareast-font-family:

“Times New Roman”‘>

style=’mso-bidi-font-size:10.5pt;font-family:”Arial”,sans-serif;mso-fareast-font-family:

Helvetica;mso-bidi-font-weight:bold’>Each IoT Edge device runs at least two

modules: $edgeAgent and $edgeHub, which are part of the IoT Edge runtime. IoT

Edge device can run multiple additional modules for any number of processes.

Use a deployment manifest to tell your device which modules to install and how

to configure them to work together.

style=’mso-bidi-font-size:10.5pt;font-family:”Arial”,sans-serif;mso-fareast-font-family:

Helvetica;mso-bidi-font-weight:bold’>Reference: https://docs.microsoft.com/en-us/azure/iot-edge/module-composition

style=’mso-bidi-font-size:10.5pt;font-family:”Arial”,sans-serif;mso-fareast-font-family:

Helvetica;mso-bidi-font-weight:bold’>

style=’mso-bidi-font-size:10.5pt;font-family:”Arial”,sans-serif;mso-fareast-font-family:

Helvetica;mso-bidi-font-weight:bold’>30.Note: This question is part of a series

of questions that present the same scenario. Each question in the series

contains a unique solution that might meet the stated goals. Some question sets

might have more than one correct solution, while others might not have a

correct solution.

style=’mso-bidi-font-size:10.5pt;font-family:”Arial”,sans-serif;mso-fareast-font-family:

Helvetica;mso-bidi-font-weight:bold’>After you answer a question in this

section, you will NOT be able to return to it. As a result, these questions

will not appear in the review screen.

style=’mso-bidi-font-size:10.5pt;font-family:”Arial”,sans-serif;mso-fareast-font-family:

Helvetica;mso-bidi-font-weight:bold’>You have an Azure Stream Analytics job

that receives input from an Azure IoT hub and sends the outputs to Azure Blob

storage. The job has compatibility level 1.1 and six streaming units.

style=’mso-bidi-font-size:10.5pt;font-family:”Arial”,sans-serif;mso-fareast-font-family:

Helvetica;mso-bidi-font-weight:bold’>You have the following query for the job.

style=’mso-bidi-font-size:10.5pt;font-family:”Arial”,sans-serif;mso-bidi-font-weight:

bold’>src=”AZ-220%20V9.files/image050.jpg” v:shapes=”_x0000_i1049″>lang=EN-US style=’mso-bidi-font-size:10.5pt;font-family:”Arial”,sans-serif;

mso-fareast-font-family:”Times New Roman”;mso-bidi-font-weight:bold’>

style=’mso-bidi-font-size:10.5pt;font-family:”Arial”,sans-serif;mso-fareast-font-family:

Helvetica;mso-bidi-font-weight:bold’>You plan to increase the streaming unit

count to 12.

style=’mso-bidi-font-size:10.5pt;font-family:”Arial”,sans-serif;mso-fareast-font-family:

Helvetica;mso-bidi-font-weight:bold’>You need to optimize the job to take

advantage of the additional streaming units and increase the throughput.

style=’mso-bidi-font-size:10.5pt;font-family:”Arial”,sans-serif;mso-fareast-font-family:

Helvetica;mso-bidi-font-weight:bold’>Solution: You change the compatibility

level of the job to 1.2.

style=’mso-bidi-font-size:10.5pt;font-family:”Arial”,sans-serif;mso-fareast-font-family:

Helvetica;mso-bidi-font-weight:bold’>Does this meet the goal?

lang=EN-US style=’mso-bidi-font-size:10.5pt;font-family:”Arial”,sans-serif;

mso-fareast-font-family:Helvetica;mso-bidi-font-weight:bold’>A. Yes

lang=EN-US style=’mso-bidi-font-size:10.5pt;font-family:”Arial”,sans-serif;

mso-fareast-font-family:Helvetica;mso-bidi-font-weight:bold’>B. No

style=’mso-bidi-font-size:10.5pt;font-family:”Arial”,sans-serif;mso-fareast-font-family:

“Times New Roman”‘>

Case Study

This is a case study. Case studies are not timed separately. You can use as much exam time as you would like to complete each case . However, there may be additional case studies and sections on this exam. You must manage your time to ensure that you are able to complete all questions included on this exam in the time provided.

To answer the questions included in a case study, you will need to reference information that is provided in the case study. Case studies might contain exhibits and other resources that provide more information about the scenario that is described in the case study. Each question is independent of the other question on this case study.

At the end of this case study, a review screen will appear. This screen allows you to review your answers and to make changes before you move to the next sections of the exam. After you begin a new section, you cannot return to this section.

To start the case study

To display the first question on this case study, click the Next button. Use the buttons in the left pane to explore the content of the case study before you answer the questions. Clicking these buttons displays information such as business requirements, existing environment, and problem statements. If the case study has an All Information tab, note that the information displayed is identical to the information displayed on the subsequent tabs. When you are ready to answer a question, click the Question button to return to the question.

Existing Environment. Current State of Development

Contoso produces a set of Bluetooth sensors that read the temperature and humidity. The sensors connect to IoT gateway devices that relay the data.

All the IoT gateway devices connect to an Azure IoT hub named iothub1.

Existing Environment. Device Twin

You plan to implement device twins by using the following JSON sample.

Existing Environment. Azure Stream Analytics

Each room will have between three to five sensors that will generate readings that are sent to a single IoT gateway device. The IoT gateway device will forward all the readings to iothub1 at intervals of between 10 and 60 seconds.

You plan to use a gateway pattern so that each IoT gateway device will have its own IoT Hub device identity.

You draft the following query, which is missing the GROUP BY clause.

SELECT

AVG(temperature),

System.TimeStamp() AS AsaTime

FROM

Iothub

You plan to use a 30-second period to calculate the average temperature reading of the sensors.

You plan to minimize latency between the condition reported by the sensors and the corresponding alert issued by the Stream Analytics job.

Existing Environment. Device Messages

The IoT gateway devices will send messages that contain the following JSON data whenever the temperature exceeds a specified threshold.

The level property will be used to route the messages to an Azure Service Bus queue endpoint named criticalep.

Existing Environment. Issues

You discover connectivity issues between the IoT gateway devices and iothub1, which cause IoT devices to lose connectivity and messages.

Requirements. Planning Changes

Contoso plans to make the following changes:

– Use Stream Analytics to process and view data.

– Use Azure Time Series Insights to visualize data.

– Implement a system to sync device statuses and required settings.

– Add extra information to messages by using message enrichment.

– Create a notification system to send an alert if a condition exceeds a specified threshold.

– Implement a system to identify what causes the intermittent connection issues and lost messages.

Requirements. Technical Requirements

Contoso must meet the following requirements:

– Use the built-in functions of IoT Hub whenever possible.

– Minimize hardware and software costs whenever possible.

– Minimize administrative effort to provision devices at scale.

– Implement a system to trace message flow to and from iothub1.

– Minimize the amount of custom coding required to implement the planned changes.

– Prevent read operations from being negatively affected when you implement additional services.

You need to enable telemetry message tracing through the entire IoT solution.

What should you do?

You create a new IoT device named device1 on iothub1. Device1 has a primary key of Uihuih76hbHb.

How should you complete the device connection string? To answer, select the appropriate options in the answer area. NOTE: Each correct selection is worth one point.

Case Study

This is a case study. Case studies are not timed separately. You can use as much exam time as you would like to complete each case . However, there may be additional case studies and sections on this exam. You must manage your time to ensure that you are able to complete all questions included on this exam in the time provided.

To answer the questions included in a case study, you will need to reference information that is provided in the case study. Case studies might contain exhibits and other resources that provide more information about the scenario that is described in the case study. Each question is independent of the other question on this case study.

At the end of this case study, a review screen will appear. This screen allows you to review your answers and to make changes before you move to the next sections of the exam. After you begin a new section, you cannot return to this section.

To start the case study

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Requirements. Planned Changes

ADatum is developing an Azure IoT solution to monitor environmental conditions. The IoT solution consists of hardware devices and cloud services. All the devices will communicate directly to Azure IoT Hub.

The hardware devices will be deployed to the branch offices and will collect data about various environmental conditions such as temperature, humidity, air quality, and noise level. The devices will be wired by using Power over Ethernet (PoE) connections.

ADatum is developing the solution in the following three phases: proof of value (POV), pilot, and production.

Requirements. POV Requirements

The POV phase will demonstrate that a technical solution is viable. During this phase, 100 devices will be deployed to the main office and Azure Stream Analytics will be connected to an IoT hub to generate real-time alerts.

Stream Analytics will perform the following processing:

– Calculate the median rate of the telemetry across the entire devices that exceed the median rate by a factor of 4.

– Compare the current telemetry to the specified thresholds and issue alerts when telemetry values are out of range.

– Ensure that all message content during this phase is human readable to simplify debugging.

Requirements. Pilot Requirements

During the pilot phase, devices will be deployed to 10 offices. Each office will have up to 1,000 devices.

During this phase, you will add Azure Time Series Insights in parallel to Stream Analytics to support real-time graphs and queries in a dashboard web app.

The pilot deployment must minimize operating costs.

Requirements. Production Requirements

The production phase will include all the offices.

The production deployment will have one IoT hub in each Azure region. Devices must connect to the IoT hub in their region.

The production phase must meet the following requirements:

– Ensure that the IoT solution can support performance and scale targets.

– Ensure that the IoT solution support up to 1,000 devices per office.

– Minimize operating costs of the IoT solution.

Requirements. Technical Requirements

Datum identifies the following requirements for the planned IoT solution:

– The solution must generate real-time alerts when a fire condition is detected in an office. All the devices in that office must trigger an audible alarm siren within 10 seconds of the alert.

– A dashboard UI must display alerts and the system status in real time and must allow device operators to make adjustments to the system.

– Each device will send hourly updates to IoT Hub. Condition alerts will be sent immediately.

– Multiple types of devices will collect telemetry that has different schemas.

– IoT Hub must perform message routing based on the message body.

– Direct methods must be used for cloud-to-device communication.

– Reports must be provided monthly, quarterly, and annually.

– Stored data queries must be as efficient as possible.

– The device message size will be under 4 KB.

– Development effort must be minimized.

Requirements. Throttle and Quotas

The relevant throttles and quotas for various IoT Hub tiers are shown in the following table.

Requirements. IoT Hub Routing

You plan to implement IoT Hub routing during the POV phase as shown in the following exhibit.

DRAG DROP

You need to add Time Series Insights to the solution to meet the pilot requirements.

Which three actions should you perform in sequence? To answer, move the appropriate actions from the list of actions to the answer area and arrange them in the correct order.

You have an existing Azure IoT hub.

You use IoT Hub jobs to schedule long running tasks on connected devices.

Which two operations do the IoT Hub jobs support directly? Each correct answer presents a complete solution. NOTE: Each correct selection is worth one point.

You need to select the appropriate communication protocol for each device.

What should you select? To answer, drag the appropriate protocols to the correct devices. Each protocol may be used once, more than once, or not at all. You may need to drag the split bar between panes or scroll to view content. NOTE: Each correct selection is worth one point.

You are implementing a proof of concept (POC) for an Azure IoT solution.

You need to deploy an Azure IoT Edge device as part of the POC.

On which two devices can you deploy IOT Edge? Each correct answer presents a complete solution. NOTE: Each correct selection is worth one point.

You plan to increase the streaming unit count to 12.

You need to optimize the job to take advantage of the additional streaming units and increase the throughput.

Solution: You change the compatibility level of the job to 1.2.

Does this meet the goal?