Huawei HCIA-Transmission V2.0 - H31-311 Exam Practice Test
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. 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.
Correct Answer: A
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When LMSP is configured, there are two switching modes: single-ended switching and dual-ended switching. The protection protocol does not need to be enabled for single-ended switching.
Correct Answer: B
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OChr means that the electrical supervisory technology is used.
Correct Answer: B
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The interval between two adjacent pointer justification events is at least ( ) frames.
Correct Answer: D
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WDM multiplexes the optical signals at multiple rates (wavelengths) over one fiber for transmission. The digital signals carried by these optical signals must have the same rate and data format.
Correct Answer: A
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Which of the following is the basic requirement of a DWDM system on a light source?
Correct Answer: A
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Which of the following are optical-layer trails? (Multiple Choice)
Correct Answer: A,B,C,D
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Automatic laser shutdown (ALS); When no optical signal is received, the ALS function automatically shuts down the corresponding optical module. This function protects onsite maintenance personnel.
Correct Answer: B
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Which of the following statements about U2000 license is incorrect?
Correct Answer: A
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Which of the following effects is used by the Raman amplifier?
Correct Answer: B
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When the lower-order resources of a device are insufficient, which of the following measures can be taken? (Multiple Choice)
Correct Answer: B,C,D
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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.
Correct Answer: B
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Forced switching, fiber cut switching, manual switching, and exercise switching are in the descending order of priority.
Correct Answer: B
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Which of the following is the default WTR time for MSP switching?
Correct Answer: D
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For the OSN 3500, there is a slot mapping relationship between processing boards and interface boards. The processing board in slot 1 maps to the interface board in slot 19-20.
Correct Answer: A
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