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Huawei H31-311 Practice Test - Questions Answers, Page 15

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Question 141

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When an optical fiber between node A and node B is broken, the FIU on node B detects the OTS_LOS alarm and inserts the OTS_BDI alarm to node

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Question 142

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Which of the following layers defines the protocols that control the network layer? The protocols of the layer work on logical links, that is end-to-end connections between two devices.

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Question 143

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Which of the following logical functional modules are involved in processing clock signal? (Multiple Choice)

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Question 144

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The receive end performs BIP-8 check for the unscrambled STM-16 frame. If the BIP-8 check result XOR the value of the B1 byte contained in the following STM-16 frame is 10001100, it indicates that () bit error blocks exist in the STM-16 frame.

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Question 145

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Which of the following is the meaning of SFD in the Ethernet frame structure?

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Question 146

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Which of the following statements about OTN advantages is incorrect?

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Question 147

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By default, the B2-EXC alarm is reported when the number of B2 bit errors exceeds the ( ) threshold.

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Question 148

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Which of the following is the default WTR time for MSP switching?

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Question 149

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When the J1 byte mismatch occurs, the () alarm is reported and services may be interrupted.

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Question 150

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The last 256 columns in the OTN frame structure are FEC areas, which are used for forward error correction.

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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).