Huawei H11-879-ENU Online Free Test

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These H11-879-ENU questions and answers provide you with the experience of taking the actual test. Our H11-879-ENU Exam is not just questions and answers. They are your access to high technical expertise and accelerated learning capacity. Our H11-879-ENU Certification preparation questions will make you feel like you are taking an actual exam at a Prometric or VUE center.

Page 1 of 5

1. Regarding the H.225 call signaling process, the following message sequence is wrong ()

setup/call proceeding/connect/alerting

setup/alerting/connect

setup/alerting/release complete

setup/call proceeding/alerting/connect

2. The routing logic flow of outgoing calls in AR router is ()

callroute->prefix->trunk-group

prefix->callroute->trunk-group

callroute->trunk-group->prefix

prefix->trunk-group->callroute

3. Regarding the IP phones and analog phones in the U1900 system, which of the following statements is correct ()

If you want to successfully register IP phones A and B to the U1900 system, the U1900 system must include the MTU board

When IP phones A and B have successfully registered to the same U1900 system, if IP phones A and B are able to dial each other, the U1900 system must include an MTU board

When IP phone A and B have successfully registered to the same U1900 system, if IP phone A calls When calling IP phone B, IP phone B is busy, then if you need IP phone A to hear busy Line tone, the U1900 must contain MTU board

If IP phone A and analog phone C (directly connected to the ASI board of U1900) are successfully registered to U1900, when A calls C, U1900 may not contain MTU board

4. U1900 and the original traditional PBX can be connected through () to protect customers' early investment () (Multiple choice)

AT0

PRA

SIP

323

5. Regarding the advantages of MCU cascading networking, the following statement is wrong ()

Insufficient port capacity of a single MCU, cascade to increase capacity

The center MCU line bandwidth is insufficient, cascading reduces bandwidth requirements

Realize device partition management

Strengthen meeting security

6. The interconnection between two U1900 series unified gateways can only be achieved through SIP trunking. ()

Right

Wrong

7. Hold a 720P30 conference with low frame rate secondary stream, the recommended conference bandwidth is 768Kbps, and the recommended network. The bandwidth is 1.5 times the conference bandwidth. () Correct or Wrong

Correct

Wrong

8. In the U1900+SC solution, eSpace 8950 is used to call the conference access number of the video conference system. When the conference list page appears on the phone screen, which statement is correct ()

You can select the conference B you want to join through the touch screen of the 8950 phone.

You can use the arrow keys on the 8950 phone to select the conference you want to join

The number key 2468 of the 8950 phone can be used to select the conference to join

You can use the microphone of the 8950 phone to select the conference you want to join by voice.

9. RSE6500 supports synchronous recording of three screens and telepresence for synchronous playback. The correct description of its implementation principle is () (single choice)

The three-screen telepresence synthesizes a three-screen by itself, and then sends RSE to record

Three-screen telepresence directly sends three streams to RSE for recording

With the help of MCU, the three-screen telepresence is combined into a three-screen, and then sent to RSE for recording

With the help of an analog video synthesizer, the three-screen telepresence is combined into a three-screen, and then sent to RSE for recording

10. IAD supports configuration methods including (). (Multiple choice)

Web

LMT

Command Line

eSight

Page 2 of 5

11. 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

12. Which of the following factors will affect the clarity of the image? ()

Color space mode

Noise reduction degree

Contrast

saturation

13. MCU adopts built-in web mode to manage and control, realize the function of () (multiple choice)

Terminal registration

Intelligent access to various types of terminals

Meeting convened

Conference control

14. Which of the following signaling is included in a SIP call? () (multiple choice)

Invite

200 OK

ACK

Set UP

15. The POTS user number in the U1900 system is bound to the analog port, and has nothing to do with the analog phone connected to the analog port () Correct or Wrong

Correct

Wrong

16. SMC 2.0 + VP9650 MCU + TE50 terminal networking, manually configure the protocol and format of the conference template to H.264 720P 30F, but after convening the conference, it is found that all the conference sites have the protocol and format of H.264 4CIF. Is ().

The ability of the main venue is set incorrectly, check whether the ability of the main venue reaches

264 720P

VP9650 MCU port configuration error is caused, check the VP9650 MCU port configuration

SMC 2.0 did not import the license. Re-import a valid license.

The account for scheduling conferences is not authorized enough. Use the admin account to log in and reschedule.

17. In the H.460 public and private network traversing dual SC networking, the communication between the terminal and Client GK follows the () protocol (Single choice)

460

323

460.18/19

931

18. The SIP terminal sends an Invite request and enters the early dialog state after receiving a 180 response () Correct or Wrong

Correct

Wrong

19. H.264 encoding, the main reason for blocking is () (single choice)

The macro block is in the intense motion area, the difference is big, resulting in obvious edges

The quantization level of the coding block jumps, resulting in sudden brightness changes at the boundary

Unreasonable division of macroblock coding modes, resulting in false edges

Deblocking filter (Deblocking) is not strong enough, resulting in not smooth edges

20. SMC2.0 does not support manually defining the number of channels for multi-channel cascading (). Right or Wrong

Right

Wrong

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21. An enterprise has deployed eSight network management, DNS server and DHCP server on its existing network.

For deploying 200 IP phones, which of the following methods cannot achieve batch configuration of TR069 parameters? ()

Configure the eSight domain name and IP address mapping in the DNS server

Batch delivery via DHCP Option 246 field

Use access scan

Through the web configuration interface of IP Phone

22. The MTU board can support 4 E1/T1 interfaces.

How to switch between E1 and T1 interfaces? Which statement is correct () (single choice)

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

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

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

None of the above

23. 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 ()

The registration status of phone A in the U1900 system may change immediately

The registration status of phone A in the U1900 system may remain unchanged

The registration status of phone A in the U1900 system may change after a period of time

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

24. In the VoIP system, what are the factors that affect the quality of voice calls? () Multiple choice

Jitter

delay

Packet loss

bandwidth

25. In the U1900 unified gateway, outgoing calls need to be configured in a certain order. The following configuration process is correct () Multiple choice

Office route selection code -> office route -> trunk -> prefix

Office route selection code -> Trunk -> Office route -> Prefix

Office route selection code -> prefix -> office route -> trunk

Office route selection code -> Trunk -> Prefix -> Office route

26. How many pixels of a camera with 1080P image resolution equivalent ()

2 million

800w

2.3 million

5000000

27. How to order the recorded video on RSE6500 on the terminal side? ()

When there is SC and routing has been configured, the terminal directly calls the IP address of RSE6500

When there is SC and routing is configured, the terminal directly calls the recording ID

When there is no SC or SC is not configured with routing, the terminal directly calls the recording ID

When there is no SC or SC is not configured with routing, the terminal calls RSE6500IP address##Recording ID

28. In the message classification of the RTCP protocol, which of the following messages describe the receiving statistics data of the receiving gateway? ()

BYE

SDES

29. Which of the following backup methods is not supported by VP9660 MCU? ()

Main control board backup

Power backup

IP/E1 line backup

Media/signaling board backup

30. A single Media board of VP9660 MCU can support up to () 1080P 30 ports?

Page 4 of 5

31. In the Huawei eSpace UC solution, U1981, U1980, U1960, U1911 all support dual-system active and standby () Correct or Wrong

Correct

Wrong

32. 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

33. 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

The ACF message received by T1 contains the GK call signaling channel transmission address

The ACF message received by T1 contains the call signaling channel transmission address of T2

After T2 receives the Setup message, it sends an ARQ message to GK

After T2 receives the Setup message, it sends an ARQ message to T1

34. Regarding MCU cascading, what is wrong in the following description ()

MCU cascade is divided into manual cascade and automatic cascade

Manual cascading requires scheduling of two conference templates

Automatic cascading does not require configuration of cascading sites

Manual cascading must configure GK routing

35. The following are not part of the H.245 capability set ()

235

239

350

460

36. 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 ().

U1911->Preparation U1981->U1911

Prepare U1981->U1911

U1911

U1911->Main U1981->Backup U1981->U1911

37. When other conditions are the same, the longer the reverberation time of the room, the clearer the sound heard Clarity. () Right or Wrong

Right

Wrong

38. In the converged conference MCU central networking mode, what method does the eSpace PC support to join the conference directly with the chairman authority? () (multiple choice)

Key in the conference list

Dial in

Join by email link

Invitation from outside

39. Regarding call bills and billing scenarios, which of the following statements is correct () (multiple choice)

The CDR data will eventually need to be imported into the CDR database

Users can query the bill data through the web page of the U1900 unified gateway

In the CDR integrated network, the third-party billing system is used as FTP Client

A single bill server can store and process bill data from multiple IP PBX hosts at the same time

40. Regarding the Fusion Conference 3.0 solution, which of the following statements is correct () (single choice)

The account to log in to the eMP system needs to be created in the eMP system

The eMP system accesses the BMU system to obtain UC system address book information

The eMP system queries the address book information of the video conferencing system by accessing eUA

eSpace Web Query the address book information of the video conferencing system by accessing eUA

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41. Using the VPC620 camera, the OSD image interface image as shown in the figure appears on the display screen, the following description is correct () (multiple choice)

This OSD interface is caused by the TV settings and needs to modify the TV configuration

This OSD interface displays camera information, which is only displayed in local mode, not in remote mode

Press the mode button of the camera to cancel this OSD interface

Press the delete button on the remote control twice in succession to cancel this OSD interface

42. The customer purchased two SCs, namely SC1 and SC2. Even if SC1 is configured with 1 service IP and SC2 is configured with 2 service IPs, it will not affect the configuration of SC1 and SC2. () Right or Wrong

Right

Wrong

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