السؤال #1

Is the following description correct? Under IGMP snooping, two users on the OLT request the same program and the OLT sends two join messages to the multicast router.

A. Truecorrect

B. False

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اجابة صحيحة: A

السؤال #2

What are the filtering algorithms supported by Power Control Algorithm III? (Multiple choices)

A. Mean filteringcorrect

B. Exponential filteringcorrect

C. Sliding window filteringcorrect

D. Logarithmic filtering

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اجابة صحيحة: ABC

السؤال #3

The correct multicast MAC address corresponding to the multicast IP address 227.120.1.32 is?

A. 01-00-5e-78-01-32

B. 01-00-5e-14-01-20

C. 01-00-5e-78-01-20correct

D. 01-00-5e-14-01-32

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اجابة صحيحة: C

السؤال #4

The IGMP version on the OLT is configured as V2. What kind of processing will the OLT do after receiving the igmr v3 join message forwarded from OnT?

A. Normal forwarding

B. Send specific group query message

C. Send general group query message

D. Discard directlycorrect

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اجابة صحيحة: D

السؤال #5

Which of the following link signaling can be traced by the circuit domain Abis trace of BSC6900? (Multiple choice)

A. OMLcorrect

B. RSLcorrect

C. MML

D. ESLcorrect

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اجابة صحيحة: ABD

السؤال #6

Under IGMP snooping, two users under the OLT order the same program, and olt sends two join messages to the multicast router.

A. Ture

B. Falsecorrect

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اجابة صحيحة: B

السؤال #7

The Max-Forwards field can be used in the S1P message to solve the loop QUESTION NO: to avoid endless message forwarding.

A. Turecorrect

B. False

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اجابة صحيحة: A

السؤال #8

Which of the following #9 actions to increase paging success rate are correct? (Multiple choice)

A. The maximum number of MS retransmissions is set to 1correct

B. The periodic position update time limit is required to be 5-10 minutes shorter than the implicit separation time of the MS C side, and it is generally recommended to set it to 60 minutescorrect

C. Set the number of access allowed reserved blocks to 1correct

D. RACH minimum access level is set to 5

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اجابة صحيحة: ABC

السؤال #9

The device will periodically send and receive LMCP messages to avoid information loss. If no messages are received within () LACP message interaction periods, the system will consider the port to be faulty.

A. 3correct

B. 5

C. 4

D. 2

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اجابة صحيحة: A

السؤال #10

Which of the following situations will trigger cell reselection (if the C2 algorithm has not been activated, C2=C1)? (Multiple choices)

A. MS calculates that the C2 value of a certain cell exceeds the C2 of the current cell for 5 consecutive secondscorrect

B. The current serving cell is bannedcorrect

C. MS monitoring downlink failurecorrect

D. MS random access, when the access attempt is still unsuccessful after the maximum retransmissioncorrect

E. Wireless link timeout

F. The MS calculates that the C2 value of a certain cell (not in the same location area) exceeds the sum of the current cell C2 and the cell reselection hysteresis value for 5 consecutive seconds (if the cell reselection occurred in the previous 15 seconds, the cell reselection will not occur again)correct

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اجابة صحيحة: ABCDF

السؤال #11

Among the following BSS side parameters, which parameters affect the system connection time? (Multiple choice)

A. Frame number coding between the same pagingcorrect

B. Maximum number of retransmissions of physical messages

C. Expand the number of transmission slotscorrect

D. ECSCcorrect

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اجابة صحيحة: ACD

السؤال #12

The IMGP version on the MA5680T is configured as V2. After the MA5680T receives the join packet of the IMGP V3 forwarded from the ONT, what kind of processing will be performed?

A. Drop directlycorrect

B. Normal forwarding

C. Send a universal group query message

D. Send a specific group query message

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اجابة صحيحة: A

السؤال #13

When using the SIP protocol, it is necessary to use the local digit map for matching. If the default matching mode is used to match the 7-digit number starting with 7727, then which options can be?

A. Local-digit map add huawei normal 7727xxx/7726

B. Local-digit map add huawei normal 772

C. Local-digit map add huawei normal 7727

D. Local-digit map add huawei normal 7727xxx/7727correct

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اجابة صحيحة: D

السؤال #14

After the ONU is powered on, the unconfigured ONU cannot be automatically discovered on the OLT. What is the reason for the impossibility?

A. The actual distance from the ONU to the OLT is outside the range of the distance compensation distance configured by the OLT

B. ONU hardware failure

C. Unplanned ONU IDcorrect

D. There is a rogue ONU, which interferes with other ONU and cannot work normally

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اجابة صحيحة: C

السؤال #15

When configuring IPTV services on the U2000, what templates are included in the IGMP templates?

A. Permission templates

B. Multicast user templates

C. Program templates

D. Preview the parameter template

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اجابة صحيحة: ACD

السؤال #16

After installing the sybase patch, which of the following commands can display the version information of the installed sybase patch?

A. 1>select @@version2>gocorrect

B. 1>select @@patch2>go

C. 1>version_help2>go

D. 1>ver_help2>go

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اجابة صحيحة: A

السؤال #17

When the mobile phone is turned on or enters the coverage area from a blind area, which of the following conditions must be met before the mobile station can reside in the cell? (Multiple choices)

A. MS can correctly decode BCCH datacorrect

B. Confirm that the cell belongs to the selected MNC through data

C. Parameter=1 value is greater than 0correct

D. The cell is not prohibited from accessingcorrect

E. The priority of the cell is normal

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اجابة صحيحة: ACD

السؤال #18

Use OTDR to locate the position of abnormal attenuation in the optical path. After the OTDR connection is to be detected the line, which of the following parameters can be set? (Multiple Choice)

A. Set the measurement rangecorrect

B. Set the wavelengthcorrect

C. Set the modecorrect

D. Set the pulse widthcorrect

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اجابة صحيحة: ABCD

السؤال #19

In order to avoid waste of resources caused by the failure of the occupied channel to be released in time after the quality of the wireless interface deteriorates, the GSN protocol uses a timer for wireless link monitoring on the base station side. Which of the following is the timer?

A. Radio link failure counter

B. Downlink failure counters

C. Number of SACCH multiframescorrect

D. Wireless link connection timer

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اجابة صحيحة: C

السؤال #20

An IPTV user reported that the TV cannot be watched, and turned on the debugging switch on the OLT side. The debugging and printing information is as follows: Huawei (config)

A. The multicast bandwidth of the poN port is insufficient

B. The user does not have the right to watch the program

C. IGMP Sakamoto Mismatch

D. User bandwidth verification failedcorrect

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اجابة صحيحة: D

السؤال #21

Which of the following information is included in the measurement report? (Multiple choice)

A. RXIevcorrect

B. Rxqualcorrect

C. BCCHcorrect

D. CGI

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اجابة صحيحة: ABC

السؤال #22

It can be judged by the query results that (). (Multiple Choice)

A. The service configuration of PPPoE users is normalcorrect

B. The PPPoE user account and authentication method are correctcorrect

C. The link between the MDU device and the BRAS is normalcorrect

D. The MDU management IP is configured correctly

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اجابة صحيحة: ABC

السؤال #23

Which of the following templates needs to be configured when Huawei network management U2000 configures FTTH IPTV service access?

A. SNMP template

B. MGC template

C. IGMP templatecorrect

D. Value-added service template

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اجابة صحيحة: C

السؤال #24

When the invitation message sent by user A reaches user B after passing through servers C, D, and E, the order of the server addresses recorded in the VIA field information in the message received by user B is?

A. C->D->E

B. E->C->D

C. E->D->Ccorrect

D. C->E->D

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اجابة صحيحة: C

السؤال #25

When the ONT fails or the hardware is upgraded, the ONT needs to be replaced, and the ONT service needs to be removed on the OLT, and then the ONT terminal is removed, and the new ONT service is registered and configured.

A. Ture

B. Falsecorrect

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اجابة صحيحة: B

السؤال #26

Which of the following descriptions about call reconstruction is correct? (Multiple choice)

A. The call reestablishment process refers to a process for the MS to restore the connection after the wireless link fails

B. Call re-establishment may occur in a new cell or new location area

C. Short message service can perform call reestablishment

D. Whether to attempt call re-establishment depends on the call state and whether the cell allows call re-establishment

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اجابة صحيحة: ABD

السؤال #27

In the OLT system, the ONT cannot be added successfully. Which of the following options is impossible?

A. The ONT-ID allocated by the ONT has been occupied by other ONT

B. The service templates bound to the ONT do not matchcorrect

C. The SN address of the ONT already exists

D. The DBA-Profile bound to ONT does not support

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اجابة صحيحة: B

السؤال #28

Among the following options, which of the following descriptions about the configuration of the NCE-FAN HSI template is wrong?

A. The upstream and downstream directions of service virtual ports can be bound to different traffic profiles

B. After the DBA template is created, it must be delivered to the devicecorrect

C. After the line template is created, it must be delivered to the device

D. The native VLAN of the ONT LAN port can be configured in the service profile

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اجابة صحيحة: B

السؤال #29

Which of the following descriptions is wrong about how Time delay mode works?

A. From the switching relationship, the access device is in the "active" position in the switching of the Time delay protection group

B. The links in the protection group are in traffic load balancing mode

C. After the OLT detects the failure of the working port, it will not immediately switch the service to the protection link

D. Immediately open the protection port when the access device is switched

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اجابة صحيحة: C

السؤال #30

In the GSM system, when the same frequency and the same BSIC appear in the network, which of the following situations will result?

A. There may be low handover success rate, low voice connection rate, and low signaling connection ratecorrect

B. There must be low handover success rate, low voice connection rate, and low signaling connection rate

C. No impact on the signaling completion rate

D. Has an impact on call quality

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اجابة صحيحة: A

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