2022 Real4Prep Huawei H31-311 Dumps and Exam Test Engine
Huawei H31-311 DUMPS WITH REAL EXAM QUESTIONS
Huawei H31-311 Exam Syllabus Topics:
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NEW QUESTION 84
Which of the following device domains can be managed by the U2000? (Multiple Choice)
- A. Wireless device
- B. Transport device
- C. Data communication device
- D. Access device
Answer: A,B,C,D
NEW QUESTION 85
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.
- A. FALSE
- B. TRUE
Answer: A
NEW QUESTION 86
Which of the following is the impact of changing the NE ID of OSN 3500 on the NMS?
- A. The NE time is not synchronized.
- B. The device is restarted.
- C. NE communication is interrupted.
- D. Services are interrupted.
Answer: C
NEW QUESTION 87
The STAT indicator of an SDH board is blinking red, on for 100 ms and off for 100 ms. Which of the following is the meaning of the indicator status?
- A. Hardware fault
- B. Normal operating
- C. No power supply input
- D. Hardware mismatch
Answer: D
NEW QUESTION 88
MAC loopback and PHY loopback are used for fault locating. When the MAC loopback is set to an inloop, you can set the PHY loopback according to the actual situation.
- A. FALSE
- B. TRUE
Answer: A
NEW QUESTION 89
Which of the following is the default WTR time for MSP switching?
- A. 10 minutes
- B. 12 minutes
- C. 15 minutes
- D. 6 minutes
Answer: A
NEW QUESTION 90
By default, the B2-EXC alarm is reported when the number of B2 bit errors exceeds the ( ) threshold.
- A. 0.000000001
- B. 0.001
- C. 0.00001
- D. 0.01
Answer: B
NEW QUESTION 91
If the overhead bytes pass through the backplane bus between two slots, the two slots are called paired slots. Paired slots implement automatic transparent transmission of overhead bytes, such as (),(), and (). This improves MSP switching performance and protects DCC communication with other NEs even if the SCC board on the local NE is offline. (Multiple Choice)
- A. B1 byte
- B. E1 byte
- C. D byte
- D. K byte
Answer: B,C,D
NEW QUESTION 92
An arrayed waveguide grating (AWG) multiplexer/demultiplexer has the following advantages: short wavelength spacing, large number of channels, and flat passband. It suits DWDM systems with ultra-high speed and large capacity.
- A. FALSE
- B. TRUE
Answer: B
NEW QUESTION 93
Which of the following statements about the EFS4 board are correct? (Multiple Choice)
- A. This board has four FE ports.
- B. This board supports Layer-2 switching.
- C. This board must be used together with a processing board.
- D. The board interface an LC interface.
Answer: A,B
NEW QUESTION 94
The SP3D board supports 63 El services.
- A. FALSE
- B. TRUE
Answer: A
NEW QUESTION 95
Which of the following methods can be used to multiplex lower-order ODUk to higher-order ODUk?
- A. Wavelength division multiplexing
- B. Space division multiplexing
- C. Time division multiplexing
- D. Frequency division multiplexing
Answer: C
NEW QUESTION 96
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.
- A. 1 , 4 , 5
- B. 1 , 3 , 5
- C. 2 , 3 , 5
- D. 2 , 4 , 5
Answer: C
NEW QUESTION 97
The backplane has two -48 V power supply cables, and each board obtains two -48 V power supplies from the backplane. After the power supplies are combined by diodes, various voltages required by each component are obtained through the DC/DC power module and linear conversion.
- A. FALSE
- B. TRUE
Answer: B
NEW QUESTION 98
Which of the following is the function of TCM overheads in ODUk signals?
- A. Path trace identifier overhead
- B. Tandem connection monitoring overhead
- C. Channel supervisory overhead
- D. General communication channel overhead
Answer: B
NEW QUESTION 99
In ITU-T G.692 recommendations, the allowed channel frequency is based on the reference frequency ( ) and the channel spacing can be 100 GHz, 50 GHz, or 25 GHz.
- A. 194.1 THz
- B. 192.1 THz
- C. 196.1 THz
- D. 193.1 THz
Answer: D
NEW QUESTION 100
When a fiber cut test is performed on a normal MSP ring, which of the following alarms is reported?
(Multiple Choice)
- A. BD STATUS
- B. R-LOS
- C. TU-AIS
- D. APSJNDI
Answer: B,D
NEW QUESTION 101
The value of the MFAS byte increases with the sequence number of the OTUk/ODUk base frame, and a maximum of ( ) base frames are included.
- A. 0
- B. 1
- C. 2
- D. 3
Answer: C
NEW QUESTION 102
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.
- A. Data link layer
- B. Application layer
- C. Transport layer
- D. Network layer
Answer: C
NEW QUESTION 103
For 100G (112 Gbit/s) signals, the actual data baud rate is only 28G baud.
- A. FALSE
- B. TRUE
Answer: B
NEW QUESTION 104
In MSP networking, when optical fibers are connected between sites, the east optical board of a site is connected to the west optical board of the downstream site, and these sites are connected in sequence to form a ring. In this case, the direction from the east optical board of a site to the west optical board of the downstream site is the major ring direction, and the direction that the ring is formed is the service direction.
- A. FALSE
- B. TRUE
Answer: A
NEW QUESTION 105
The STM-64 has () AU pointers.
- A. 0
- B. 1
- C. 2
- D. 3
Answer: B
NEW QUESTION 106
The difference between a dispersion compensation fiber and a common fiber is that the dispersion compensation fiber has a negative dispersion coefficient at ( ).
- A. 1650 nm
- B. 800 nm
- C. 1550 nm
- D. 1310 nm
Answer: C
NEW QUESTION 107
The number of 0DU2e signals multiplexed into an 0DU3 signal is the same as that of 0DU2 signals multiplexed into an 0DU3 signal.
- A. FALSE
- B. TRUE
Answer: A
NEW QUESTION 108
When setting the LCAS mode, follow the following principles:
1. If devices at the two ends are both Huawei devices, set them to the "Standard Mode".
2. If a Huawei device is interconnected with a third-party device, set the interconnected devices to the same mode according to the mode supported by the third-party device.
- A. FALSE
- B. TRUE
Answer: A
NEW QUESTION 109
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