[H20-871 free questions] HCS-Field-IVS H20-871 test online

1. What are the advantages of H.265 encoding relative to H.264 encoding? (Multiple Choice)

Same bandwidth, clearer picture quality and 1 times more transmission channels

Same picture quality, bandwidth and storage are saved in half

Same storage, 10 times more access roads or storage days

Higher compression ratio

2. Which of the following are the main technical indicators of the camera? (Multiple Choice)

Resolution

Sharpness

Minimum illumination

SNR

3. Huawei IPC integrated lever can withstand at least ( ) times the weight of the camera.

4. The VCN3000 supports a maximum of ( ) self-stacking networking.

5. What is the command to properly restart the DB under the command line?

/home/ivstool/bin/service.sh restart pgdb

/home/ivstool/bin/service.sh pgdb restart

/home/ivstool/bin/service.sh db restart

/home/ivstool/bin/service.sh restart db

6. What does the mandatory components that make up the Control Center video wall include? (Multiple Choice)

Large screen display

Decoder

Large screen controller

IVS client

7. When the camera is shooting in a backlight environment, in order to avoid darkness of the main body of the screen, it is necessary to turn on the ( ) function of the camera.

Backlight compensation

Half-balanced

AGC

Electronic shutter

8. When the camera site is installed, what are the materials required for power supply access installation? (Multiple Choice)

Lightning arrester

Equipment box

Voltage regulator

Network cable

9. When you access the front-end web plug-in, you need to install the front-end plug-in correctly. Otherwise, the web page cannot be displayed, and the live fails.

TRUE

FALSE

10. The VCN3000 supports a maximum of ( ) cluster networking.

128

11. What operation cannot do during the video playback process of the IVS client?

Pause playback

Fast forward and rewind

Video file backup

Progress drag

12. What is the main difference between sensor CCD and CMOS? (Multiple Choice)

CCD sensitivity is higher in the same pixel and size

CMOS resolution is higher in the same size

High sensitivity of CCD

Higher manufacturing cost of CMOS

13. The camera controls the amount of light incident on the photosensitive element by ( ). (Multiple Choice)

Aperture

Focal length

Shutter speed

Sensor size

14. Which of the following operations should be done when manually recovering data in the VCN3000? (Multiple Choice)

Manually restore all module configuration files

Manually restore the SCU/OMU/SMU database

Manually restore the MU database

Manually restore the DCG database

15. What do not include in the main components of the analog camera?

Sensor

DSP

Lens

Video coding chip

16. The VCN3000 uses SafeVideo technology to ensure safe and reliable recording. Which of the following belong to the SafeVideo features? (Multiple Choice)

Object storage technology

LUN not fail technology

Automatic switching between groups

Strip block storage

17. What is the core technical concept of the fourth generation video surveillance industry development?

Matrix

DVR

Network

Intelligent

18. Which of the following statement about the constant bit rate and the variable bit rate is correct?

The constant bit rate compression speed is fast, and the large dynamic picture may appear unclear.

The constant bit rate compression is slow, and large dynamic pictures may appear unclear.

The variable bit rate compression speed is fast, and the large dynamic picture may appear unclear.

The variable bit rate compression is slow, and the large dynamic picture may appear unclear.

19. When viewing the IPC live through the Web, the screen was found to be white, what was the most likely reason?

IPC aperture is too large

IPC aperture is too small

IPC focal length is not adjusted accurately

IPC is too large

20. If the camera is installed in the hotel lobby and is facing the gate, which of the following parameters are not required to set?

Wide dynamic

Backlight compensation

Through fog mode

White balance

HCS-Field-IVS H20-871 Free Questions To Test Online

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