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Huawei H31-311 Practice Test - Questions Answers, Page 4

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List of questions

Question 31

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Which of the following statements about the multiplex section remote error indication (MS-REI) is correct?

1. The B2 byte indicates the transmission channel.

2. The Ml byte indicates the transmission channel.

3. MS-REI is transmitted from the sink to the source.

4. MS-REI is transmitted from the source to the sink.

5. Indicates the number of detected bit errors after the sink receives the MS signals.

1 , 4 , 5
1 , 4 , 5
2 , 4 , 5
2 , 4 , 5
1 , 3 , 5
1 , 3 , 5
2 , 3 , 5
2 , 3 , 5
Suggested answer: D
asked 18/09/2024
Marcin Weglarski
39 questions

Question 32

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Which of the following is the frame whose VC-4 J1 byte is indicated by the current frame's AU pointer?

Current frame
Current frame
Next frame
Next frame
Previous frame
Previous frame
None of the above
None of the above
Suggested answer: B
asked 18/09/2024
Anton Khodyakov
51 questions

Question 33

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When multiple users need to share the same VCTRUNK and use the same VLAN ID, the QinQ technology can be used.

TRUE
TRUE
FALSE
FALSE
Suggested answer: A
asked 18/09/2024
Robert Akehurst
39 questions

Question 34

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Which of the following statements about the 1+1 protection of cross-connect boards are correct? (Multiple Choice)

The source service board sends services to the active and standby cross-connect boards.
The source service board sends services to the active and standby cross-connect boards.
After service cross-connections are completed, the active and standby cross-connect boards send the data of the active cross-connect board to the sink service board.
After service cross-connections are completed, the active and standby cross-connect boards send the data of the active cross-connect board to the sink service board.
The sink service board can receive only the data from the active cross-connect board.
The sink service board can receive only the data from the active cross-connect board.
The buses of the two cross-connect modules work independently and do not interfere with each other.
The buses of the two cross-connect modules work independently and do not interfere with each other.
The dual-bus system structure indicates that the service board performs dual feeding of data to the cross-connect side and selective receiving of the data on the cross-connect side.
The dual-bus system structure indicates that the service board performs dual feeding of data to the cross-connect side and selective receiving of the data on the cross-connect side.
Two cross-connect boards have the same configuartion. Service boards will selectively receive services from one of them based on the quality of services and status of cross-connect boards.
Two cross-connect boards have the same configuartion. Service boards will selectively receive services from one of them based on the quality of services and status of cross-connect boards.
Suggested answer: A, D, E, F
asked 18/09/2024
Shafqat Balouch
34 questions

Question 35

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In a WDM system, using a dielectric thin film filter (TFF) is ideal when fewer than ( ) wavelengths are used.

4
4
8
8
16
16
20
20
Suggested answer: C
asked 18/09/2024
IQBAL SHAIKH
39 questions

Question 36

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According to the formula of 'ODUk rate = 239/(239-k) x STM-N frame rate', the ODU4 rate is equal to 239/235 x STM-N frame rate.

TRUE
TRUE
FALSE
FALSE
Suggested answer: B
asked 18/09/2024
Cynan Jones
43 questions

Question 37

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Linear MSP (LMSP) has two modes; 1+1 and 1:1. Extra services can be configured for the protection channel only in the 1:1 mode of LMSP.

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Question 38

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The clock unit can access an external clock source as the timing signal source of the system only through the external clock interface. In addition, it can output the processed clock and provide the clock source for other devices that require timing.

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Question 39

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Which of the following statements about the MST functional module are correct? (Multiple Choice)

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Question 40

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A 1510 nm optical supervisory channel can be effectively amplified after it passes an EDFA.

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Total 186 questions
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Related questions

Which of the following is the multiplexing mode of SDH?
Which of the following are the main advantages of SDH? (Multiple Choice)
The interval between two adjacent pointer justification events is at least ( ) frames.
According to ITU-T recommendations, the requirement that the MSP switching time should be within 50 ms is conditional. For example, the number of NEs on an entire ring network is less than 16.
Forced switching, fiber cut switching, manual switching, and exercise switching are in the descending order of priority.
The pointer is used for alignment and indicates the start position of VC-n in the corresponding AU or TU frame. In this way, the receive end can correctly remove the corresponding VC from the STM-N, and then split the VC and C encapsulation to separate low-rate signals, such as PDH. That is, low-rate tributary signals can be directly dropped from the STM-N signal.
Which of the following factors determines that the optical signal-to-noise ratio (OSNR) at the receive end decreases to a certain extent After signals are transmitted for a certain distance in a WDM system, the optical signal-to-noise ratio (OSNR) at the receive end decreases to a certain extent. Which of the following is the main cause?
The last 256 columns in the OTN frame structure are FEC areas, which are used for forward error correction.
Which of the following is the frame structure of STM-16?
Frame-Mapped GFP (GFP-F) is a processing mode oriented to data coding blocks (such as Fiber Channel and ESCON).