Note! Following H11-879 Exam is Retired now. Please select the alternative replacement for your Exam Certification. The new exam code is H11-879_V2.0

H11-879 Exam Dumps - HCIE-Enterprise Communication (Written)

Question # 4

Built-in MCU terminal plus RSE network, without the help of SMC, the functions that can be implemented independently on the terminal do not include () (single choice)

Point-to-point recording meeting

Three-party live conference

Point-to-point live conference

Recording resource management

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Question # 5

If IP phone A fails to register with U1900, which of the following situations will not be the cause of the registration failure? ()

IP phone A has a network failure

The SIP server information in the configuration of IP phone A is incorrectly configured.

SIP account and password in IP phone A configuration are wrong

The user ID and phone number of IP phone A configured in the U1900 system are inconsistent

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Question # 6

In the VoIP system, what are the factors that affect the quality of voice calls () (multiple choice)

Jitter

delay

Packet loss

bandwidth

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Question # 7

Which of the following is correct about backing up and restoring data on U1900 series unified gateways? () (multiple choice)

Execute the save command before each backup

After importing data.bin every time you restore, execute the save command and then restart

There is no need to execute the save command during backup and restore

TFTP tool needs to be enabled for backup

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Question # 8

In the U1900 series unified gateways, regarding the relationship between prefix, office direction, office direction selection code and trunk, the correct statement is () multiple selection

One prefix can only correspond to one office direction selection code

One office route selection code can only correspond to one prefix

The correspondence between office direction selection code and office direction is one-to-many

One office route can correspond to multiple different types of relays

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Question # 9

When the eSpace 7900 series phones are restored to factory settings, which of the following statements is correct is () multiple choice

Restoring factory settings will reset all phone parameters to default values

All information in contacts and call logs will be retained

Signal tones, language packs and personalized wallpapers imported by users will be retained

In the phone login interface, long press the home interface button to restore the factory settings

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Question # 10

Which of the following conference control operations are not supported by the sub conferences of a multi-level conference? () Multiple choice

Multi-picture polling

Chairman polling

Timed broadcast

Voice control switch

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Question # 11

One codec rate is 64kbps, and the packaging time is 20ms. What is the IP band occupied by the codec? The width is () kbps (Note: IP/UDP/RTP header is 40 Bytes, here 1kbps=1000bps)

83.6

76.6

90.4

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Question # 12

At which level are SIP retransmissions and timeouts handled? ()

Syntax and coding layer

Transaction layer

Transport layer

Transaction user layer

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Question # 13

In the central networking mode of the converged conference MCU, what is correct about the traversal of public and private networks? () (Multiple selected)

TE/RP/TP access MCU through SC proxy signaling and media stream

eSpace Mobile accesses MCU C through SBC proxy audio and video media.

External web client access MCU through MS proxy audio and video

eSpace PC connects to MCU through SC proxy signaling and media stream

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Question # 14

Huawei TE series terminals make point-to-point calls, and the video-related settings are all "automatic", the following statement. The correct one () (multiple choice)

In the case of sufficient bandwidth, the main video is given priority to the 1080P60 format.

In the case of sufficient bandwidth, the main video is given priority to the 1080P30 format

In the case of sufficient bandwidth, 720P60 format is preferred for the main video

In the case of sufficient bandwidth, 720P30 format is preferred for the main video

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Question # 15

E1 and 4E1 lines do not support H.460 traversal networking. () Correct or Wrong

Correct

Wrong

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