Huawei H31-311 Real 2022 Braindumps Mock Exam Dumps
H31-311 Exam Questions | Real H31-311 Practice Dumps
NEW QUESTION 77
Which of the following working windows is indicated by "2" in the optical module parameter L-64.2"?
- A. 1510 nm
- B. 1550 nm
- C. 880 nm
- D. 1310 nm
Answer: B
NEW QUESTION 78
Which of the following is the meaning of "L" in the optical module parameter "L-64.2"?
- A. Transmit wavelength
- B. Dispersion coefficient
- C. Transmission distance
- D. Receive wavelength
Answer: C
NEW QUESTION 79
The number of bit error blocks on each VC-4 channel is detected by B3 at the receive end. At the same time, the information is sent back to the transmit end through ( ), and HP-REI and HP-FEBBE are reported at the transmit end.
- A. G1 (b5-b8)
- B. G1 (bl-b4)
- C. K3 (bl-b4)
- D. J (bl-b4)
Answer: B
NEW QUESTION 80
When a fiber cut test is performed on a normal MSP ring, which of the following alarms is reported?
(Multiple Choice)
- A. TU-AIS
- B. BD STATUS
- C. APSJNDI
- D. R-LOS
Answer: C,D
NEW QUESTION 81
When the rate of an SNCP ring consisting of four OptiX OSN 2500 devices is 2.5 Gbit/s, the service capacity of this network can carry a maximum number of ( ) 2 Mbit/s signals.
- A. 0
- B. 1
- C. 2
- D. 3
Answer: D
NEW QUESTION 82
When a working PQ1 board is faulty, the device performs TPS protection switching. Which of the following statements about the switching process are correct? (Multiple Choice)
- A. If the protection PQ1 board is normal, the cross-connect board sends a switching message to the D75S corresponding to the faulty PQ1 board through the switching control bus.
- B. The protection PQ1 board receives and processes the services that are transferred from the D75S board to the protection bus to complete the protection switching.
- C. The cross-connect board detects that the PQ1 board is faulty through the board status bus.
- D. The D75S board responds to the switching message by transferring services to the shared protection bus and stopping sending services to the faulty PQ1 board.
Answer: A,B,C,D
NEW QUESTION 83
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 84
The device IP addresses of the gateway NE and non-gateway NEs must be set in the same network segment.
- A. FALSE
- B. TRUE
Answer: A
NEW QUESTION 85
Which of the following statements about the sequence of a signal flow between the SDH interface and the cross-connect unit is correct?
- A. SPI< >RST< >MST< >MSP< >MSA< >HPT
- B. SPT< >MST< >MSA< >RST< >MSP< >HPT
- C. SPI< >RST< >MSA< >MSP< >MST< >HPT
- D. SPI< >MST< >RST< >MSA< >MSP< >HPT
Answer: A
NEW QUESTION 86
In a WDM system, using a dielectric thin film filter (TFF) is ideal when fewer than ( ) wavelengths are used.
- A. 0
- B. 1
- C. 2
- D. 3
Answer: C
NEW QUESTION 87
The PRBS can be used to test whether an SDH service is normal and whether the protection switching function is normal.
- A. TRUE
- B. FALSE
Answer: A
NEW QUESTION 88
Which of the following overheads is not an ODUk overhead?
- A. PM
- B. NJO
- C. TCM
- D. APS/PCC
Answer: B
NEW QUESTION 89
TU-AIS is frequently encountered during network maintenance. Which of the following alarms can trigger the TU-AIS alarm? (Multiple Choice)
- A. B2-EXC
- B. AU-LOP
- C. HP-TIM
- D. R-LOS
Answer: A,B,C,D
NEW QUESTION 90
Which of the following statements about the optical-layer interfaces OTM-n.m and OTM-nr.m of OTN is incorrect?
- A. OTM-nr.m with OSC signals is OTM-n.m.
- B. r indicates OTM without the OSC function.
- C. m indicates the rate. The value can be 1, 2, or 3.
- D. n indicates the number of wavelengths carried by the maximum capacity.
Answer: C
NEW QUESTION 91
When multiple users need to share the same VCTRUNK and use the same VLAN ID, the QinQ technology can be used.
- A. TRUE
- B. FALSE
Answer: A
NEW QUESTION 92
Which of the following alarm/event dumping modes are supported by the U2000? (Multiple Choice)
- A. Manual dumping
- B. Automatic dumping
- C. Periodic dumping of alarm logs
- D. Overflow dumping
Answer: A,C,D
NEW QUESTION 93
During the service configuration between two adjacent sites (NE1 and NE2), if VC4:1 and VC12:l-3 are used on the NEl's line board connected to NE2, the same VC4 and VC12 timeslots must be used on the NE2's line board connected to NE1.
- A. TRUE
- B. FALSE
Answer: A
NEW QUESTION 94
By default, the B2-EXC alarm is reported when the number of B2 bit errors exceeds the ( ) threshold.
- A. 0.001
- B. 0.000000001
- C. 0.01
- D. 0.00001
Answer: A
NEW QUESTION 95
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