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Free Huawei H11-879 Practice Questions & Answers 2026 Part1 | HCIE-Collaboration

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Question #1
Phone A has been successfully registered to the U1900 system. At some point, unplug the network cable.At this time, log in to the U1900 system to check the registration status of phone A. Which of the the following statements is wrong?
A. The registration status of phone A in the U1900 system may change immediately
B. The registration status of phone A in the U1900 system may remain unchanged
C. The registration status of phone A in the U1900 system may change after a period of time
D. The registration status of phone A in the U1900 system is updated, only after the networkcable of phone A is unplugged, the change occurs after half of the registration period of phone A has passed
View answer
Correct Answer: D
Question #2
In the U1900 unified gateway, outgoing calls need to be configured in a certain order. The following configuration process is correct? (Multiple choice)
A. Office route selection code -> office route -> trunk -> prefix
B. Office route selection code -> Trunk -> Office route -> Prefix
C. Office route selection code -> prefix -> office route -> trunk
D. Office route selection code -> Trunk -> Prefix -> Office route
View answer
Correct Answer: AC
Question #3
Which of the following backup methods is not supported by VP9660 MCU?
A. Main control board backup
B. Power backup
C. IP/E1 line backup
D. Media/signaling board backup
View answer
Correct Answer: C
Question #4
Regarding MCU cascading, what is wrong in the following description?
A. MCU cascade is divided into manual cascade and automatic cascade
B. Manual cascading requires scheduling of two conference templates
C. Automatic cascading does not require configuration of cascading sites
D. Manual cascading must configure GK routing
View answer
Correct Answer: D
Question #5
In the remote disaster recovery scenario, when the master node (U1981) fails, POTS user A of a branch node (The branch site equipment is U1911). If you make an outgoing call to the local PSTN user B through the branch node, the network element through which the SIP signaling of the call passes is (------------)?
A. U1911->Preparation U1981->U1911
B. Prepare U1981->U1911
C. U1911
D. U1911->Main U1981->Backup U1981->U1911
View answer
Correct Answer: A
Question #6
There are two terminals, T1 and T2, both registered to the same GK. When T1 calls T2 by number, what is wrong with the following statement? () Multiple choice
A. The ACF message received by T1 contains the GK call signaling channel transmission address
B. The ACF message received by T1 contains the call signaling channel transmission address of T2
C. After T2 receives the Setup message, it sends an ARQ message to GK
D. After T2 receives the Setup message, it sends an ARQ message to T1
View answer
Correct Answer: AD
Question #7
As shown in the figure (there is a picture, a screenshot of the call status, showing the video packetloss rate, which is 14.8%), when the chairman broadcasts the TE terminal, the terminal sees thesending packet loss rate of 14.8%, indicating that there may be other The terminal watched thevenue, and the packet loss rate reached 14.8%. () Right or Wrong
A. ight
B. rong
View answer
Correct Answer: B
Question #8
What protocol does the video conference terminal use to ensure the security of SIP signaling transmission () (single choice)
A. TTPS
B. LS
C. TCP
D. RTP
View answer
Correct Answer: B
Question #9
In the H.323 protocol, the message used to control the opening of the logical channel is ()
A. LC, CLCA
B. LC, OLCA
C. CSR, TCSA
D. SDR, MSDA
View answer
Correct Answer: B
Question #10
The customer purchased two SCs, namely SC1 and SC2. Even if SC1 is configured with 1 service IP andSC2 is configured with 2 service IPs, it will not affect the configuration of SC1 and SC2. () Right orWrong
A. ight
B. rong
View answer
Correct Answer: B
Question #11
In the remote disaster recovery scenario, when the master node (U1981) fails, POTS user A of a branch node (The branch site equipment is U1911). If you make an outgoing call to the local PSTN user B through the branch node, the network element through which the SIP signaling of the call passes is (------------)?
A. U1911->Preparation U1981->U1911
B. Prepare U1981->U1911
C. U1911
D. U1911->Main U1981->Backup U1981->U1911
View answer
Correct Answer: A
Question #12
In the central networking mode of the converged conference MCU, what is correct about the traversal of public and private networks? (Multiple selected)
A. TE/RP/TP access MCU through SC proxy signaling and media stream
B. eSpace Mobile accesses MCU C through SBC proxy audio and video media
C. External web client access MCU through MS proxy audio and video
D. eSpace PC connects to MCU through SC proxy signaling and media stream
View answer
Correct Answer: ABC
Question #13
Regarding MCU cascading, what is wrong in the following description ()
A. utomatic cascading does not require configuration of cascading sites
B. CU cascade is divided into manual cascade and automatic cascade
C. anual cascading requires scheduling of two conference templates
D. anual cascading must configure GK routing
View answer
Correct Answer: D
Question #14
How to order the recorded video on RSE6500 on the terminal side? ()
A. hen there is SC and routing has been configured, the terminal directly calls the IP address of RSE6500
B. hen there is SC and routing is configured, the terminal directly calls the recording ID
C. hen there is no SC or SC is not configured with routing, the terminal directly calls the recording ID
D. hen there is no SC or SC is not configured with routing, the terminal calls RSE6500IP address##Recording ID
View answer
Correct Answer: BD
Question #15
In the Huawei eSpace UC solution, U1981, U1980, U1960, U1911 all support dual-system active and standby. Correct or Wrong?
A. Correct
B. Wrong
View answer
Correct Answer: A
Question #16
The MTU board can support 4 E1/T1 interfaces. How to switch between E1 and T1 interfaces. Which statement is correct? (single choice)
A. You only need to select E1 or T1 in the "Parameter Configuration> Transmission Mode" in the "Quick Configuration> Configure Board" page on the U1900 Web management page, and the switch can be completed
B. The default is the E1 interface
C. The default is T1 interface, switch to E1, you need to remove the jumper cap inside the MTU board, and you need to enter the Web management page to modify the configuration
D. None of the above
View answer
Correct Answer: B
Question #17
In the central networking mode of the converged conference MCU, what is correct about the traversal of public and private networks? (Multiple selected)
A. TE/RP/TP access MCU through SC proxy signaling and media stream
B. eSpace Mobile accesses MCU C through SBC proxy audio and video media
C. External web client access MCU through MS proxy audio and video
D. eSpace PC connects to MCU through SC proxy signaling and media stream
View answer
Correct Answer: ABC
Question #18
The following are not part of the H.245 capability set (-----)?
A. H
B. H
C. H
D. H
View answer
Correct Answer: C
Question #19
A single Media board of VP9660 MCU can support up to () 1080P 30 ports?
A.
B. 4
C. 6
D. 2
View answer
Correct Answer: B
Question #20
There are two terminals, T1 and T2, both registered to the same GK. When T1 calls T2 by number, what is wrong with the following statement? () Multiple choice
A. The ACF message received by T1 contains the GK call signaling channel transmission address
B. The ACF message received by T1 contains the call signaling channel transmission address of T2
C. After T2 receives the Setup message, it sends an ARQ message to GK
D. After T2 receives the Setup message, it sends an ARQ message to T1
View answer
Correct Answer: AD
Question #21
In the central networking mode of the converged conference MCU, what is correct about the traversal of public and private networks? (Multiple selected)
A. TE/RP/TP access MCU through SC proxy signaling and media stream
B. eSpace Mobile accesses MCU C through SBC proxy audio and video media
C. External web client access MCU through MS proxy audio and video
D. eSpace PC connects to MCU through SC proxy signaling and media stream
View answer
Correct Answer: ABC
Question #22
In the remote disaster recovery scenario, when the master node (U1981) fails, POTS user A of a branch node (The branch site equipment is U1911). If you make an outgoing call to the local PSTN user B through the branch node, the network element through which the SIP signaling of the call passes is (------------)?
A. U1911->Preparation U1981->U1911
B. Prepare U1981->U1911
C. U1911
D. U1911->Main U1981->Backup U1981->U1911
View answer
Correct Answer: A
Question #23
Regarding MCU cascading, what is wrong in the following description?
A. MCU cascade is divided into manual cascade and automatic cascade
B. Manual cascading requires scheduling of two conference templates
C. Automatic cascading does not require configuration of cascading sites
D. Manual cascading must configure GK routing
View answer
Correct Answer: D
Question #24
Which of the following signaling is included in a SIP call? () (multiple choice)
A. Invite
B. 200 OK
C. ACK
D. Set UP
View answer
Correct Answer: ABC
Question #25
If IP phone A fails to register with U1900, which of the following situations will not be the cause of the registration failure? ()
A. IP account and password in IP phone A configuration are wrong
B. he SIP server information in the configuration of IP phone A is incorrectly configured
C. he user ID and phone number of IP phone A configured in the U1900 system are inconsistent
D. P phone A has a network failure
View answer
Correct Answer: C
Question #26
How many pixels of a camera with 1080P image resolution equivalent?
A. 2 million
B. 800w
C. 2
D. 5000000
View answer
Correct Answer: A
Question #27
In the converged conference MCU central networking mode, what method does the eSpace PCsupport to join the conference directly with the chairman authority? () (multiple choice)
A. ey in the conference list
B. ial in
C. oin by email link
D. nvitation from outside
View answer
Correct Answer: ABC
Question #28
The following are not part of the H.245 capability set (-----)?
A. H
B. H
C. H
D. H
View answer
Correct Answer: C
Question #29
There are two terminals, T1 and T2, both registered to the same GK. When T1 calls T2 by number, what is wrong with the following statement? () Multiple choice
A. The ACF message received by T1 contains the GK call signaling channel transmission address
B. The ACF message received by T1 contains the call signaling channel transmission address of T2
C. After T2 receives the Setup message, it sends an ARQ message to GK
D. After T2 receives the Setup message, it sends an ARQ message to T1
View answer
Correct Answer: AD
Question #30
Regarding MCU cascading, what is wrong in the following description?
A. MCU cascade is divided into manual cascade and automatic cascade
B. Manual cascading requires scheduling of two conference templates
C. Automatic cascading does not require configuration of cascading sites
D. Manual cascading must configure GK routing
View answer
Correct Answer: D
Question #31
Regarding MCU cascading, what is wrong in the following description?
A. MCU cascade is divided into manual cascade and automatic cascade
B. Manual cascading requires scheduling of two conference templates
C. Automatic cascading does not require configuration of cascading sites
D. Manual cascading must configure GK routing
View answer
Correct Answer: D
Question #32
The following are not part of the H.245 capability set (-----)?
A. H
B. H
C. H
D. H
View answer
Correct Answer: C
Question #33
What technologies are adopted by TE series terminals to ensure the safety of signaling and mediadata? () (multiple choice)
A. upport TLS protocol to ensure the security of HTTP, LDAP, FTP data transmission
B. rovide a secure management channel through TELNET by default
C. upport H
D. t the maintenance and management level, it supports password complexity checking and anti- brute force cracking mechanism
View answer
Correct Answer: AC
Question #34
The following are not part of the H.245 capability set (-----)?
A. H
B. H
C. H
D. H
View answer
Correct Answer: C
Question #35
There are two terminals, T1 and T2, both registered to the same GK. When T1 calls T2 by number, what is wrong with the following statement? () Multiple choice
A. The ACF message received by T1 contains the GK call signaling channel transmission address
B. The ACF message received by T1 contains the call signaling channel transmission address of T2
C. After T2 receives the Setup message, it sends an ARQ message to GK
D. After T2 receives the Setup message, it sends an ARQ message to T1
View answer
Correct Answer: AD

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