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问题 #1

The network management U2000 adds a line template to realize the mapping of user service flow to GEM PORT. The mapping mode includes? (Multiple choice)

A. MACcorrect

B. PORTcorrect

C. VLANcorrect

D. 802.IPcorrect

正确答案：ABCD

问题 #2

If you want to set the cell selection priority of a certain cell to normal and the cell reselection status to normal, what should be the CBA (cell access permission) and CBQ (cell ban permission)?

A. 0 and 0correct

B. 0 and 1

C. 1 and 0

D. 1 and 1

正确答案：A

问题 #3

Which of the following factors may cause noise in the call? (Multiple Choice)

A. Port data is not configured

B. User line issuescorrect

C. Transmission clock or ground problemscorrect

D. Telephone problemscorrect

正确答案：BCD

问题 #4

Compared with Type C dual-homing protection, the following Type C single-homing protection description, which is wrong?

A. OLT failure will cause business interruption.

B. Simple networking, simple OLT/ON U management.

C. Protect important user services for the protection of enterprise private line access services and base station private line access services.

D. When the OLT or the OLT uplink fails, it can be switched to another OLT.

正确答案：D

问题 #5

The main reason why the tower mount amplifier can expand the coverage of the base station is to amplify the downlink signal.

A. True

B. Falsecorrect

正确答案：B

问题 #6

Multicast technology effectively solves the problem of single-point sending and multi-point receiving, and realizes efficient point-to-multipoint data transmission in the IP network.

A. Turecorrect

B. False

正确答案：A

问题 #7

In the Huawei u2000 management system, when adding access network elements, you can only add them one by one.

A. Truecorrect

B. False

正确答案：A

问题 #8

The configuration on the OLT is as follows, huawei (config) # snmp=agent target-host trap-hostname user address 10.10.10.10 udp-port162 trab-paramnamneaaa, for the above SNMP configuration commands, which of the following statement is wrong?

A. The configured RAP port number is 162, which needs to be corrected to 161.

B. The host name is user

C. The destination host address of the trap message on the device is 10.10.10.10

D. The used trap message sending parameter information list is named aaa

正确答案：A

问题 #9

Deploying QoS can solve the problem of user service quality in the process of network communication. Its purpose does not include?

A. Control the number of concurrent userscorrect

B. Regulating the traffic of the IP network

C. Avoid and manage network congestion

D. Reduce the loss rate of packets

正确答案：A

问题 #10

The maximum splitting ratio supported by 10GEPON is?

A. 1:256 (Laboratory)

B. 1:32

C. 1:128correct

D. 1:64

正确答案：C

问题 #11

When the main fiber is broken or the OLT cannot detect the expected optical signal (LOS) alarm, the possible reason is? (Multiple choice)

A. There is a rogue ONU under the portcorrect

B. Port trunk fiber failurecorrect

C. All power failures or faults under the portcorrect

D. Port laser is turned offcorrect

正确答案：ABCD

问题 #12

When the BTS broadcasts a paging request through a paging group, which of the following possible configurations are there? (Multiple choices)

A. 2 IMSIscorrect

B. 2 TMSI and 1 IMSI pagingcorrect

C. 3 TMSI pagescorrect

D. 4 TMSI pagescorrect

正确答案：ABCD

问题 #13

The value of the NCC Permitted item in S16 received by the mobile phone in the serving cell is "00001000". At this time, the NCCs of the two surrounding cells are 3 and 4 respectively. Please judge which of the following statements is correct?

A. You can switch to a cell with NCC=3

B. You can switch to a cell with NCC=4correct

C. Both neighbors can switch

D. Neither neighbor can switch

正确答案：B

问题 #14

In the GPON network, to measure the luminous condition of the ONU, which of the following options is correct?

A. Optical power string through PON network to PON network, using 1490 nm to measure

B. Measure the optical power of the PON network directly into the ODN, using 1310 nm to measure

C. Directly connect to ONU's PON port for measurement by optical power metercorrect

D. Turn on the ONU's long light switch by command and then use the optical power measurement

正确答案：C

问题 #15

Regarding multicast, which of the following descriptions is incorrect?

A. Add Lgmp user under BT

B. By default, a multicast user can watch 8 programs.

C. The report sent by the user is captured in the board logic and sent to the board CPU

D. Configure general parameters of Layer 2 group pointer protocols (IGMP Proxy, GMP Snoop) globally based on the device. For allcorrect

E. When igmp match mode disable, you need to configure the multicast program group

正确答案：D

问题 #16

After the anti-ipattack function is enabled on the OLT, the device cannot be managed remotely via telnet.

A. TRUE

B. FALSEcorrect

正确答案：B

问题 #17

During the implementation of QoS for home broadband services, the DBA speed limit function is configured. Where is it taking effect?

A. ONU

B. OLTcorrect

C. BRAS

D. ODN

正确答案：B

问题 #18

Which of the following are the measures taken to overcome multipath fading? (Multiple choices)

A. Frequency hoppingcorrect

B. Power Control

C. Diversitycorrect

D. Community Orientation

正确答案：AC

问题 #19

(Multiple select) When there is a backbone fiber break or OLT does not detect the expected optical signal (L0S) alarm, the possible cause is that

A. ARogue ONU exists under the port

B. BThe port backbone fiber is faulty

C. CAny power loss or failure under the port

D. DThe port laser is turned off

正确答案：BCD

问题 #20

(single) When the MA5680T traffic is scheduled, which of the following traffic will be marked as red?

A. Traffic below CIR

B. Traffic above CIR but below PIR

C. Traffic above PIR

D. Traffic above CBS

正确答案：C

问题 #21

(Multi-select) VLAN planning principles need to be considered

A. The total number of VLANs

B. Customer type and number of users

C. Type and type of business

D. Uplink networking mode

E. The networking topology of the OLT

正确答案：ABCDE

问题 #22

Which of the following CGI numbers is correct?

A. 460010855

B. 13008558899

C. 4600108551201correct

D. 861300855

正确答案：C

问题 #23

Is the following description correct? The minimum transmit rate in the ADSL/ADSL2+ parameter indicates the minimum transmit rate that must be reached in the direction after the line is activated. If the maximum is set too large, the modem cannot be activated normally.

A. Truecorrect

B. False

正确答案：A

问题 #24

Regarding multicast, which of the following descriptions is incorrect?

A. Add Lgmp user under BT

B. By default, a multicast user can watch 8 programs.

C. The report sent by the user is captured on the board logic and sent to the board CPUC

D. Based on the device's global configuration of the common parameters of the Layer 2 blocking protocol (IGMP Proxy, GMP Snoop), valid for all multicast VLANcorrect

E. When igmp match mode disable, the multicast program group needs to be configured

正确答案：D

问题 #25

(Single)When deploying home and guest services in a PON system, which of the following services has the highest priority?

A. AVOIP

B. BGAME

C. CINTERNET

D. DIPTV

正确答案：A

问题 #26

The total downstream bandwidth of the 10G EPON PONI port is the sum of the downstream bandwidth of EPON and the downstream bandwidth of 10GEPON.

A. Truecorrect

B. False

正确答案：A

问题 #27

(Multiple choice) Which of the following measures can be adopted by GPON in terms of traffic control

A. Gem-car

B. gem mapping

C. flow-car car

D. tcont

正确答案：AC

问题 #28

(Radio) To improve link reliability, the LT device passes through two upstream ports 0/19/0 and 0/20/0 Configure the Timedelay protection group, which of the following commands is optional

A. Ahuawei(config)#interface giu 0/19huawei (config-if-giu-0/19)hoffline-tx-off-time 0 500

B. Bhuawei(protect-group-0)hprotect-group member port 0/19/0 role work

C. Chuawei(protect-group-0)aprotect-group enable

D. Dhuawei(config)=protect-group 0 protect-target sth-nni port workmode timedelay

正确答案：A

问题 #29

In a Layer 2 network, which protocols are usually used to control the forwarding of multicast traffic?

A. IGMP-proxy

B. PIM-SM

C. PIM-DM

D. HGMP

正确答案：A

问题 #30

By default, which type of the following should be the queue scheduling mode on the MA5600T/MA5680T?

A. WRR

B. PQcorrect

C. WFQ

D. CQ

正确答案：B

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