Cisco Certified Specialist 600-660 DCACIA Questions and Answers

1. Refer to the exhibit.

How is the ARP request from VM1 forwarded when VM2 is not learned in the Cisco ACI fabric?

Leaf 101 forwards the ARP request to one of the proxy VTEP spines.

POD1 spine responds to the ARP request after the POD1 COOP is updated with the VM2 location.

Leaf 101 encapsulates the ARP request into a multicast packet that is destined to 225.0.37.192.

Leaf 101 switch consumers the ARP reply of VM2 to update the local endpoint table.

2. Which approach does Cisco ACI use to achieve multidestination packet forwarding between leaf switches in the same fabric?

Map VXLAN VTEP to the multicast group

Map VXLAN to PIM-SM protocol

Map VXLAN VNI to the multicast group

Map VXLAN to PIM-DM protocol

3. What does the VXLAN source port add to the overlay packet forwarding when it uses the hash of Layer 2, Layer 3, and Layer 4 headers of the inner packet?

ECMP

TCP optimization

disabled fragmentation

jumbo frames

4. Which two actions are the Cisco best practices to configure NIC teaming load balancing for Cisco UCS B-Series blades that are connected to the Cisco ACI leaf switches? (Choose two.)

Create vPC+

Enable LACP active mode

Create PAgP

Create vPC

Enable MAC pinning

5. An organization migrates its virtualized servers from a legacy environment to Cisco ACI. VM1 is incorrectly attached to PortGroup IT|3TierApp|Web.

Which action limits IP address learning in BD1?

Enable Enforce Subnet Check

Enable Rouge Endpoint Control

Enable GARP-based EP Move Detection Mode

Disable Remote EP Learn

6. Refer to the exhibit.

What must be configured to allow the PBR node (LB-int) to monitor the availability of the endpoint that is in the EPG server?

Endpoint Dataplane Learning

Unicast Route disabled for client and server bridge domains

PBR node tracking

Direct Connect in the service graph template

7. An engineer must limit local and remote endpoint learning to the bridge domain subnet.

Which action should be taken inside the Cisco APIC?

Disable Remote EP Learn

Enable Enforce Subnet Check

Disable Endpoint Dataplane Learning

Enable Limit IP Learning to Subnet

8. What is the purpose of the Forwarding Tag (FTAG) in Cisco ACI?

FTAG is used in Cisco ACI to add a label to the iVXLAN traffic in the fabric to apply the correct policy.

FTAG is used in Cisco ACI to add a label to the VXLAN traffic in the fabric to apply the correct policy.

FTAG trees in Cisco ACI are used to load balance unicast traffic.

FTAG trees in Cisco ACI are used to load balance mutli-destination traffic.

9. Refer to the exhibit.

Which three actions should be taken to implement the vPC in the Cisco ACI fabric? (Choose three.)

Select a common vPC interface policy group

Select individual interface profiles

Select common interface profiles

Select individual switch profiles

Select common switch profiles

10. Which action should be taken in Cisco ACI to reassign a unique globally scoped pcTag to an EPG that provides a global contract?

Configure subnets that are treated as virtual IP

Configure subnets that advertise externally

Configure subnets that are shared between VRFs

Configure subnets that are private to VRF

Cisco Certified Specialist 600-660 DCACIA Questions and Answers

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