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Huawei H11-861_V4.0-ENU exam questions are routinely designed by certified experts, so you may get the newest and advanced know-how to prepare for the Huawei HCIP-Collaboration V4.0 certification exam. We have set 742 practice questions and answers for learning. Before getting the materials, you can check the H11-861_V4.0-ENU free test online first.

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1. Which of the following is a disadvantage of NAPT?

Multiple public IP addresses are required

Network flexibility is greatly increased

High complexity in configuration and maintenance

Low level of network security protection

Question 1 of 33

2. Which of the following conference types does the Huawei SMC video conferencing system not support?

AVC

SVC

HVC

Multi-stream hybrid conference

Question 2 of 33

3. Which of the following descriptions of the SIP protocol is wrong?

SIP protocol can be used to establish sessions

SIP protocol can be used to control sessions

SIP protocol can be used to release the session

SIP protocol can be used to transmit sessions

Question 3 of 33

4. Which of the following is the correct ranking of the voice quality of different voice codec protocols?

ACLD>G.722>G.728>G.711

AACLD>G.722>G.711>G.728

G711>G.728>G.722>AAC LD

G722>G.711>G.728>AAC LD

Question 4 of 33

5. In a dual-SC H.460 public-private network traversal scenario, assuming SC1 is in the Trust zone and SC2 is in the DKZ zone, which of the following descriptions of the SC service IP and management IP configurations is wrong?

The LAN1 and LAN2 IPs of SC1 need to be configured as business IPs at the same time

The LAN1 and LAN2 IPs of SC2 need to be configured as business IPs at the same time

SC1's LAN1 port IP needs to be configured as the management IP

SC2's LAN1 port IP needs to be configured as a management IP

Question 5 of 33

6. The SMC system administrator enabled the sc forced media routing policy on the SMC. Conference administrator John successfully booked a conference, but all parties were unable to join. Which of the following reasons could not be the cause of this failure?

The terminal version is too old and the compatibility switch on the SMC is not turned on.

The license does not contain any traffic.

The joining party is a soft terminal.

No one answers the call on each terminal

Question 6 of 33

7. Assume that T1 and T2 are two terminals registered in the same SC node area (with signaling routing enabled on the SC). T1 calls T2's number via the H.323 protocol, and then T1 and T2 communicate. Which of the following descriptions of the calling process is correct?

After receiving the ACF message from SC, T1 will send a TCP link establishment request to SC.

After T2 receives the ACF message from SC, T1 will send a TCP link establishment request to SC.

After receiving the SETUP message sent by T1, SC will reply with a CALL PROCEEDING message to T1, and then SC will send a TCP link establishment request to T2.

After the TCP link between T1 and SC is established, T1 sends a SETUP message to SC.

Question 7 of 33

8. The SMC system administrator can configure the automatic end time of a meeting on the Meeting Policy tab. Which of the following ranges does this meeting end time fall within?

0-120

1-120

1-240

0-240

Question 8 of 33

9. Which of the following statements is correct?

Non-INVITE transactions involve a three-way handshake process.

CANCEL transactions can be used to cancel INVITE transactions and non-INVITE transactions.

A CANCEL transaction can only be sent after receiving a provisional response to an INVITE (including 100) and before receiving the final response.

Non-INVIE transactions can have provisional responses (1xx).

Question 9 of 33

10. When using static NAT to achieve public-private network traversal, when a public network terminal calls a private network terminal, which of the following statements is wrong?

Caller CS Address is the NAT address of the private network terminal

Caller CS Addr is the NAT address of the private network terminal

The DST address is the NAT address of the private network terminal

The DST address actually processed by the firewall is the private network terminal address

Question 10 of 33

11. Mr Wang found that the SC's IP address was not configured. Which of the following commands can be used to configure the IP address of the LAN1 port of the independent SC? (Where X is the normal IP address)

systemctl enable ipconfig lanl address xxxx netmask255.255.255.0 gateway XXXX

ipconfig set lanl address xxxxnetmask 255.255.255.0 gateway XXXX

ifconfig -h lanl address xxxxnetmask 255.255.255.0 gateway XXXX

system-view sys-config network-config lanl ipv4 address xxxx netmask 255.255. 255.0 gateway XXxx

Question 11 of 33

12. Which of the following RAS messages can be used to deregister a terminal from a gatekeeper?

GRQ

RRQ

URQ

ARQ

Question 12 of 33

13. If a video conferencing terminal successfully registers with the SC via the SIP protocol, which of the following messages will the terminal periodically send to the SC to maintain the SIP registration?

OPTIONS

REGISTER

MESSAGE

NOTIFY

Question 13 of 33

14. Before encoding and compression, if a 4K image uses a 48-bit color depth, which of the following is the storage space required for one original frame?

180Mb

370Mb

380Mb

190Mb

Question 14 of 33

15. In a network with a built-in MCU terminal and an RSE, which of the following functions can be independently implemented on the terminal without the SMC?

Point-to-point recording of conferences

Three-party live conference

Point-to-point live conference

Recording and Broadcasting Resource Management

Question 15 of 33

16. Before compression encoding, a single frame of a 1080P image takes up 95MB of storage space. What is its color bit depth?

24bit

48 bit

16bit

64bit

Question 16 of 33

17. Which of the following protocols does SIP call use to ensure media transmission security?

SRTP

H.235

HTTPS

RTCP

Question 17 of 33

18. When an SMC conference administrator attempts to initiate a meeting, the message "Insufficient access numbers" appears, causing the meeting to fail. Which of the following reasons could be the cause?

The "Conference Rate" configured when holding a meeting is too high

"High frame rate sharing" is enabled when holding a meeting

The soft terminal user selected when holding the meeting failed to register successfully

The virtual conference room function is enabled on SMC, and the "Conference ID Range" is set too large. Too many or all conference IDs are occupied by virtual conference rooms, resulting in no conference IDs available for regular meetings.

Question 18 of 33

19. After lossless encoding, the bitrate of sound and images is very high. For example, if a 4CIF analog TV signal uses a 48-bit color depth, which of the following is closest to the bitrate transmission rate before compression?

557Mbs

446Mbs

600Mbs

238Mbs

Question 19 of 33

20. In a multi-channel cascade, how are the multi-channel usage priorities of the upstream and downstream MCUs allocated?

The priority of the upper NCU is lower than that of the lower MCU

The priority of the upper MCU is higher than that of the lower MCU

You can assign priorities as needed

Both have the same priority

Question 20 of 33

21. Which of the following steps should be followed to recover SMC data in a dual-host scenario?

SMC manual switchover > Check SMC1 service status > Dual-node removal > SMC1 data recovery > SMC dual-node configuration

Dual-node removal > Check SMC1 service status > SMC manual switchover > SMC1 data recovery > SMC dual-node configuration

Check SMC1 service status > SMC manual switchover > dual-node removal > SMC1 data recovery > SMC dual-node configuration

SMC1 data recovery > dual-node removal > check SMC1 service status > SMC manual switchover > SMC dual-node configuration

Question 21 of 33

22. In a public-private network traffic traversal solution, if you want both public and private network users to be able to view the live video conference, which of the following recording server deployment methods offers the highest security?

Deploy the recording server in the DMZ area, then configure NAT on the firewall and open the corresponding communication port

Deploy the recording and broadcasting server in the enterprise intranet, and then map the server address to the public network through NAT.

Deploy the recording and broadcasting server in the intranet, configure a private network address for one network port and a public network IP for the other network port.

Deploy the recording and broadcasting server directly on the public network and provide private network users with access to the public network.

Question 22 of 33

23. If NAT is not enabled on the private network terminal, calls from the public network terminal to the private network terminal behind the firewall will fail. Which of the following is the root cause?

The public network terminal cannot obtain the RRQ registration information of the private network terminal.

The public network terminal cannot find the source port of the private network terminal.

The destination address of the setup message of the public network terminal is the private network address, because the CS address comes from the internal data of the RRQ message packet of the private network terminal and is not changed by NAT.

The Caller cs addr in the ACF reported by GK is wrong.

Question 23 of 33

24. In a unilateral scheduling scenario using point-based scheduling, after scheduling a venue through the VDC Client, which of the following descriptions of the venue status is wrong?

After scheduling a venue, the speaker icon of the venue is highlighted.

After scheduling a venue, the microphone icon of that venue will be highlighted.

After scheduling a venue, the monitoring venue will display the name of the scheduled venue.

After the venue is scheduled, the venue will be displayed as busy.

Question 24 of 33

25. If a VP9660 is configured with four media boards (operation slots 2, 3, 8, and 9), which of the following media boards will the system select by default as the media board?

2

9

3

8

Question 25 of 33

26. When "PT=200" is in an RCTP message, which type of message does it represent?

RR

SR

SEDS

BYE

Question 26 of 33

27. Which of the following signaling does the gatekeeper use to reject access authentication and address resolution requests and provide the resolution results?

RRJ

GRJ

URJ

ARJ

Question 27 of 33

28. In the SC-SIP proxy registration scenario, in addition to opening the registered SC's SIP proxy through the SMC webpage, which of the following commands can also be used to open it?

system-view sys-config common-config enable-proxy true

reboot

display sys-config

system-view sys-config network-config enable-proxy true

Question 28 of 33

29. Which of the following codecs can be used for wideband voice?

711

729

718

iLBC

Question 29 of 33

30. H.264 video divides images into three types of frames: l, P, and B. Among them, a frame uses inter-frame coding and b frame uses intra-frame coding. Which of the following options is correct regarding the types of a and b?

B, P

P, I

I, P

I, B

Question 30 of 33

31. Which of the following protocols is used to control conference media channels?

225

239

281

245

Question 31 of 33

32. Which of the following messages indicates that the request cannot be fulfilled on the SIP server?

1xx

3xx

5xx

6xx

Question 32 of 33

33. Which of the following is not a feature of Huawei's collaboration solution?

Powerful audio and video encoding and decoding capabilities

Richer application scenarios

Voice interaction must be based on PSDN

Intelligent human-computer interaction

Question 33 of 33

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