السؤال #1

When configuring client-side 1+1 protection, if the working OTU and the protection OTU are in different network elements, the control channel board type can be selected as OLP or SCS board

A. TRUE

B. FALSEcorrect

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اجابة صحيحة: B

السؤال #2

The OTU2 frame length is about four times the OTU1 frame length

A. TRUE

B. FALSEcorrect

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اجابة صحيحة: B

السؤال #3

Which of the following does not belong to simple flow classification?

A. VLAN PRL

B. ACLcorrect

C. MPLS EXP

D. IP DSCP

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اجابة صحيحة: B

السؤال #4

Regarding the M40 and D40 channel isolation indicators of OSN 8800/6800 equipment, which of the following statements is correct? (Multiple choice)

A. M40 Adjacent channel isolation >22dBcorrect

B. M40 non-adjacent channel isolation>25dBcorrect

C. D40 Adjacent channel isolation >22dB

D. D40 non-adjacent channel isolation>25dBcorrect

E. The LINE1-OSC1 and LINE1-OSC2 isolation of SFIU are both ≥65db

F. IN-TM, IN-TC isolation of FIU>40db

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اجابة صحيحة: ABD

السؤال #5

When considering the dispersion distance in a DWDM 10G system, which distance should be considered?

A. Distance between adjacent sites

B. Total distance of the entire network

C. Electrical regeneration distance

D. All of the above are wrongcorrect

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اجابة صحيحة: D

السؤال #6

Which of the following features does the N3EFS4 board support? (Multiple choice)

A. LCAScorrect

B. QINQ

C. LPTcorrect

D. QoScorrect

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اجابة صحيحة: ACD

السؤال #7

In order to achieve the specified synchronization quality requirements, corresponding requirements must be made for the synchronous transmission network, and certain networking rules must be followed during network planning. Which of the following is wrong?

A. In one clock transmission direction, the number of stations between transit office clocks cannot exceed 30

B. The number of switching station clocks cannot exceed 10

C. The total number of devices in one direction cannot exceed 60

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اجابة صحيحة: A

السؤال #8

Which of the following descriptions of the 1+1 protection features on the client side is wrong?

A. OTU client optical layer dual transmission and selective reception

B. Protect the OTU board and OCh fiber by occupying two wavelengths for protection and using different routes for transmission

C. Working and protection wavelengths must be the samecorrect

D. Long application time and wide protection range

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اجابة صحيحة: C

السؤال #9

Which of the following descriptions of the networking requirements for configuring SOM is wrong?

A. OSC board must be configured in the network

B. The outbound optical amplifier at the OMS segment must be equipped with an MCA board

C. An OA board must be configured between the FIU board and the ROADM board or the splitter/combiner board at the receiving end of the OMS segment

D. Optical amplifier boards of the same dimension can be inserted into different network elementscorrect

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اجابة صحيحة: D

السؤال #10

Create an upgrade task process, which of the following statement is wrong?

A. The upgrade operator must use the "admin" level user for the health check, otherwise some check items will fail and the check efficiency will be reduced

B. For gateway NEs, if the configuration item "If the NE to be loaded is a gateway NE, force FTP/SFTP to be loaded" is selected, an FTP/SFTP server needs to be configured on the network management server to increase the loading speed

C. "Force Parallel Activation"

D. Check "Use package customization

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اجابة صحيحة: A

السؤال #11

In the C-band 80-wave system, add the operation of C-band odd-numbered waves. Which of the following description is correct? (Multiple choice)

A. It is necessary to re-adjust the optical emission powercorrect

B. After the operation, the signal-to-noise ratio of the original service remains unchangedcorrect

C. The operation process will interrupt the original business

D. There is no change in optical power on the OTU WDM sidecorrect

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اجابة صحيحة: ABD

السؤال #12

What should be paid attention to when adjusting the antenna? (Multiple choice)

A. During commissioning, there is no rain/snow/fog effect between the two sitescorrect

B. ATPC function is offcorrect

C. If the microwave link adopts 1+1 protection configuration and uses one antenna, turn off the power of the standby ODU before swapping the antennascorrect

D. Turn on the AM function

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اجابة صحيحة: ABC

السؤال #13

What are the principles of synchronous Ethernet planning? (Multiple choice)

A. When there is BITS or other high-precision external clock devices, it is recommended that network elements use tracking external clock sourcescorrect

B. When there is no BITS or other high-precision external clock devices, it is recommended that network elements track the line clock sourcecorrect

C. The internal clock source is recommended as the lowest level clock sourcecorrect

D. When stopping the SSM protocol, do not configure the clock in a ring in the network

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اجابة صحيحة: ABCD

السؤال #14

Which of the following descriptions of ODUk SNCP protection type is wrong?

A. When the protection subtype is "SNC/I, there is no need to set the OTN overhead

B. The protection subtype is "SNC/S": monitors the PM layer and needs to set the OTN overhead;correct

C. For boards that require ODUk SNCP protection and electrical cross-connection, the configuration varies depending on the selected board and customer-side services;

D. The ODUk SNCP protection configuration of the receiving site needs to be consistent with the ODUk SNCP protection configuration of the sending site;

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اجابة صحيحة: B

السؤال #15

OptiX OSN 1800 is a compact multi-service optical transport platform. Which of the following descriptions is wrong?

A. Does not support 158802 transmission and does not support external time signal accesscorrect

B. Single channel maximum rate 10Gbit/s (OTU2)

C. The OptiX OSN 18001 chassis provides a total of 4 service board slots

D. The OptiX OSN 180011 chassis provides a total of 8 service board slots

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اجابة صحيحة: A

السؤال #16

For the 1+1 protection in the OTU board with external OLP, it supports non-extended mode and extended mode. The extended mode adds switching conditions of the electrical layer.

A. TRUEcorrect

B. FALSE

عرض الإجابة

اجابة صحيحة: A

السؤال #17

For NG-SDH equipment equipped with dual main control boards, when the main control board is upgraded, which of the following statements is correct?

A. After upgrading the standby main control board first, the upgrade of the original active main control board can be completed only through active-standby switchover

B. Upgrade the active main control board first, and then upgrade the standby main control board

C. Complete the upgrade of the standby main control board first, then perform a hard reset on the current active main control board to make it active and standby, and then upgrade the current active standby main control boardcorrect

D. First upgrade the main main control board and then upgrade the standby main control board in the same way

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اجابة صحيحة: C

السؤال #18

The types of boards that need to be upgraded when upgrading NG-SDH equipment are: 1. Cross-connect board 2. Main control board 3. Service board. What is the correct upgrade sequence?

A. 123

B. 321

C. 213correct

D. 312

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اجابة صحيحة: C

السؤال #19

In SDH networks, the S1 byte is used to transmit synchronization status information. Which of the following S1 byte values represents the G811 recommended clock?

A. Ox00

B. Ox02correct

C. Ox04

D. Ox0b

E. OxOf

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اجابة صحيحة: B

السؤال #20

What are the main components of Huawei RTN 900 series equipment? (Multiple choice)

A. IDUcorrect

B. ODUcorrect

C. GPS

D. IF cablecorrect

E. Antennacorrect

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اجابة صحيحة: ABDE

السؤال #21

Which of the following about system OSNR commissioning is wrong?

A. Adjust the single-wave level first, and then adjust the optical power of the main linecorrect

B. One of the commissioning principles for OSNR flatness of the MPI-R point system: After the pump power is determined, use a spectrometer to detect the OSNR flatness of the MPI-R point

C. The multiplexer is an M40V single board, "look at the receiving end, adjust the sending end", in the case of ensuring that the optical power flatness meets the index requirements, the optical power flatness can be sacrificed to ensure the flatness of OSNR (or BER)

D. APE automatically adjusts the optical power of each channel to ensure that the optical power at the receiving end is flat, thereby ensuring the flatness of OSNR

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اجابة صحيحة: A

السؤال #22

Which of the following statements about TTX board is correct?

A. Essentially, the TTX board is not a 100G tributary board, but it requires a single-slot 100G cross-connect capacity

B. 8800T64/T32 universal subrack can support TTX boards

C. This board is a tributary board that can access 100G client-side services

D. TTX can be used with NS4 to make ODU4 particles electrically cross-linked

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اجابة صحيحة: A

السؤال #23

The PTN device realizes the unified bearer of multiple services through PWE3. For the user, the PTN device is equivalent to a Layer 2 switch.

A. TRUEcorrect

B. FALSE

عرض الإجابة

اجابة صحيحة: A

السؤال #24

When the Ethernet networking is applied, which of the following characteristics can adjust the bandwidth as needed, and dynamically increase or decrease the members in the VCTRUNK without affecting the business? When a member of the virtual concatenation group fails, the bandwidth can be quickly adjusted to ensure the normal transmission of data; when the failed member recovers, the original bandwidth of the virtual concatenation group is automatically restored.

A. LCAScorrect

B. LAG

C. DLAG

D. QoS

عرض الإجابة

اجابة صحيحة: A

السؤال #25

Which of the following descriptions about branch SNCP protection is wrong?

A. When configuring a branch SNCP, you need to set the SNCP subtype

B. The crossover granularity is GE or Any signalcorrect

C. Trigger conditions are: board not in place, SF, SD

D. Branch SNCP protection uses the dual-transmit and selective-receive function of electrical layer crossover to protect the customer-side services accessed by the branch board

عرض الإجابة

اجابة صحيحة: B

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