H11-879_V2 0-ENU HCIE-Collaboration (Written) V2 0 Exam Questions

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1. Two interconnected Huawei VP terminals A and B communicate through a conference scheduled by
Huawei 8650+SMC. A uses the T.140 protocol to send a banner to B. The color of the banner displayed
on B is?
A. The banner color configured on the terminal before terminal A sends
B. Color of subtitle banner defined on MCU
C. The color of the subtitle banner defined on the SMC management platform
D. Banner color configured on terminal B
Answer: D
2. The FEC forward error correction algorithm is an algorithm that sends redundant data at the
transmitting end, and the decoding end recovers the code stream based on the redundant data.
A. True
B. False
Answer: A
3. Which of the following does not belong to the video conferencing system protocol system?
A. H.320
B. H.323
C. SIP
D. 3GPP
Answer: D
4. Which of the following is not the most basic component of the H.323 protocol framework?
A. MCU
B. GK
C. SMC
D. Terminal
Answer: C
5. Regarding the relationship between auxiliary streams and audio and video, which of the following
descriptions is wrong?
A. Generally speaking, the codec protocol used by the auxiliary stream is the same as that of ordinary
video.
B. Generally speaking, the effect of auxiliary flow is worse than that of mainstream flow
C. Auxiliary streams can also be transmitted on the mainstream channel
D. In a multi-point video conference, the main stream can form a multi-viewer with the auxiliary stream.
Answer: B
6. The basic functions of GateKeeper defined in the ITU-TH.323 protocol do not include?
A. Geocoding
B. Network segment restrictions
C. Bandwidth Management
D. Regional management
Answer: B
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7.08:08:01 ARJ sendto [(61.131.13.141:1719)] [Caller] [59512724] [(61.131.13.141:1720)]
[Callee][59522000051] [[Ox0000006derr_call callee_offline]
From the above GK log, we can see that the possible reasons for the call failure are?
A. The called person is offline
B. The called person is busy
C. Insufficient call bandwidth
D. Capability negotiation failed
Answer: A
8. In the H.323 protocol system, H.225 RAS is carried on the () layer
A. UDPfv
B. TCP
C. IP
D. Data link layer
Answer: A
9. Among the following RAS messages, which one enables the gatekeeper to reject the node's access
authentication and address resolution request?
A. GRQ
B. RRQ
C. URQ
D. LRQ
Answer: D
10. The gateway in H.323 is between a circuit-switched network and a packet-switched network.
A. True
B. False
Answer: A
11.Which of the following is not a security mechanism of SIP?
A. IPsec
B. SIPS
C. RTP
D. Digest authentication
Answer: C
12. Cancel transaction can be used to cancel which of the following transaction?
A. BYE transaction
B. Invite transaction
C. Update transaction
D. Info transaction
Answer: B
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13. Configure Huawei GK-1 and Huawei GK-2 as neighbor GKs. Terminal A and Terminal B are registered
in GK-1, and Terminal C is registered in GK-2. If both GK-1 and GK-2 enable Q931 routing, and terminal A
actively calls the number of terminal C and the call is successful, how many SETUP messages are used
in the call process?
A. 1 time
B. 2 times
C. 3 times
D. 4 times
Answer: C
14. The terminal reads camera data through which of the following?
A. Video cable
B. Audio cable
C. Control line
D. Infrared
Answer: C
15. Regarding HD terminal auxiliary IP, which of the following statements is wrong?
A. You don’t need to fill it in
B. Used for terminal debugging in LAN
C. For main business
D. You can enter the terminal through this IP
Answer: C
16.TE60 supports multi-viewing effects up to?
A. Double visions
B. Three visions
C. Four visions
D. Five visions
Answer: B
17. Which of the following terminals does not support 8M call bandwidth?
A.TE30
B. TE40
C. TE50
D.TE60
Answer: A
18.The maximum pickup distance of VPM220 array microphone is?
A. 3m
B. 4m
C. 6m
D. 8m
Answer: C
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19. Local terminals or remote terminals cannot call each other through IP addresses. Which of the
following statements is incorrect?
A. The local end is in a private network, the remote end is in a public network or another private network,
and the NAT parameters are not set correctly.
B. Failure to register GK locally or remotely
C. Local or remote network disconnection
D. GK registered locally or remotely is not allowed to call through IP address
Answer: B
20.VP96XX MCU supports which port allocation strategy?
A. Fixed
B. Dynamic automatic configuration
C. Manual configuration
D. None of the others
Answer: C
21.Which of the following interfaces on the MCU is the default business network port?
A. GEO
B.GE1
C.FE
D. RS232
Answer: A
22.GK’s active/standby switching is coordinated by heartbeat connections.
A. True
B. False
Answer: A
23. When using the MCU fence mode, the firewall in the original network needs to be modified (such as
opening ports).
A. True
B. False
Answer: B
24. When using the MCU fence mode, the terminal on the GEO side can call the terminal on the GE1 side
through IP.
A. True
B. False
Answer: B
25. How many E1 lines can 86 series MCU service board connect to at most?
A. 32
B. 48
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C. 64
D. 128
Answer: C
26. SMC2.0 is based on the enterprise organizational structure management model. How many system
users are there by default?
A. one kind
B. Two kinds
C. Three kinds
D. Four kinds
Answer: C
27. The implementation principle of the SMC2.0 configuration lock function is that the SMC regularly
delivers the configuration to the terminal device, and the terminal parameters modified by the user will be
restored by the SMC.
A. True
B. False
Answer: A
28. In the SMC2.0 system, which of the following users has the highest authority level?
A. Conference Manager
B. Conference Operator
C. System administrator
D. System debugger
Answer: C
29. All MCUs in the same service area must have the same prefix number.
A. True
B. False
Answer: B
30. In the recorded meeting, the network recording service records the meeting content and also supports
real-time viewing of the meeting through the live broadcast client.
A. True
B. False
Answer: A
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