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Question 1:
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. To switch to T1, you need to remove the jumper cap inside the MTU board. Need to enter the Web management page to modify the configuration
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
Correct Answer: B
Question 2:
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. The following statement 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 network cable of phone A is unplugged, the change occurs after half of the registration period of phone A has passed
Correct Answer: D
Question 3:
In the VoIP system, what are the factors that affect the quality of voice calls? () Multiple choice
A. Jitter
B. delay
C. Packet loss
D. bandwidth
Correct Answer: ABCD
Question 4:
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
Correct Answer: AC
Question 5:
How many pixels of a camera with 1080P image resolution equivalent ()
A. 2 million
B. 800w
C. 2.3 million
D. 5000000
Correct Answer: A
Question 6:
How to order the recorded video on RSE6500 on the terminal side? ()
A. When there is SC and routing has been configured, the terminal directly calls the IP address of RSE6500
B. When there is SC and routing is configured, the terminal directly calls the recording ID
C. When there is no SC or SC is not configured with routing, the terminal directly calls the recording ID
D. When there is no SC or SC is not configured with routing, the terminal calls RSE6500IP address##Recording ID
Correct Answer: BD
Question 7:
In the message classification of the RTCP protocol, which of the following messages describe the receiving statistics data of the receiving gateway? ()
A. SR
B. BYE
C. RR
D. SDES
Correct Answer: C
Question 8:
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
Correct Answer: C
Question 9:
A single Media board of VP9660 MCU can support up to () 1080P 30 ports?
A. 12
B. 36
C. 24
D. 8
Correct Answer: C
Question 10:
In the Huawei eSpace UC solution, U1981, U1980, U1960, U1911 all support dual-system active and standby () Correct or Wrong
A. Correct
B. Wrong
Correct Answer: A
Question 11:
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
Correct Answer: AD
Question 12:
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
Correct Answer: D
Question 13:
The following are not part of the H.245 capability set ()
A. H.235
B. H.239
C. H.350
D. H.460
Correct Answer: C
Question 14:
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
Correct Answer: A
Question 15:
When other conditions are the same, the longer the reverberation time of the room, the clearer the sound heard Clarity. () Right or Wrong
A. Right
B. Wrong
Correct Answer: B
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