Easy To Download Huawei H31-311-ENU Exam Dumps Updated 190 Questions
New Updated H31-311-ENU Exam Questions 2021
NEW QUESTION 53
Outband networking requires higher costs than in band networking, but provides more reliable management channels.
- A. TRUE
- B. FALSE
Answer: A
NEW QUESTION 54
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 M1 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. ①④⑤
- B. ①③⑤
- C. ②④⑤
- D. ②③⑤
Answer: D
NEW QUESTION 55
TU-AIS is frequently encountered during network maintenance.
Which of the following alarms can trigger the TU-AIS alarm? (Multiple Choice)
- A. HP-TIM
- B. AU-LOP
- C. B2-EXC
- D. R-LOS
Answer: A,B,C,D
NEW QUESTION 56
Compared with a dense wavelength division multiplexing (DWDM) system, a coarse wavelength division multiplexing (CWDM) system provides a certain number of wavelengths and a transmission distance within ( ) km, which greatly reduces system cost and has strong flexibility.
- A. 0
- B. 1
- C. 2
- D. 3
Answer: B
NEW QUESTION 57
Which of the following are the differences between AU pointer and TU pointer? (Multiple Choice)
- A. Byte where the pointer value is stored
- B. Adjustment unit
- C. Indication range
- D. Number of bits occupied by the pointer value
Answer: A,B,C
NEW QUESTION 58
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: B
NEW QUESTION 59
Which of the following alarm/event dumping modes are supported by the U2000? (Multiple Choice)
- A. Manual dumping
- B. Overflow dumping
- C. Automatic dumping
- D. Periodic dumping of alarm logs
Answer: A,B,D
NEW QUESTION 60
Which of the following statements about an MSP ring are correct? (Multiple Choice)
- A. "Assigned by VC4" means that different VC4s are assigned to different protection subnets to achieve MSP only in some channels.
- B. When creating a protection subnet, select SDH NEs only. Do not select REG or WDM NEs.
- C. When multiple protection subnets occupy the same port on the same board, you must select "Resource Sharing".
- D. The number of nodes on an MSP ring cannot exceed 16.
Answer: A,B,C,D
NEW QUESTION 61
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 Q, and HP-REI and HP-FEBBE are reported at the transmit end.
- A. J (b1-b4)
- B. G1 (b1-b4)
- C. K3 (b1-b4)
- D. G1 (b5-b8)
Answer: B
NEW QUESTION 62
Configuring an EPLAN service as a ring is not recommended. If the EPLAN service is configured as a ring, the STP protocol must be enabled on the network to prevent broadcast storms.
- A. TRUE
- B. FALSE
Answer: A
NEW QUESTION 63
Which of the following are basic functions of the U2000? (Multiple Choice)
- A. Performance management
- B. Topology management
- C. Alarm management
- D. Security management
Answer: A,B,C,D
NEW QUESTION 64
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.
- A. TRUE
- B. FALSE
Answer: A
NEW QUESTION 65
When a VLAN-based service type is configured, which of the following functions must be enabled on the port?
- A. Flow control
- B. Entry detection
- C. Auto-negotiation mode
- D. Broadcast packet suppression
Answer: B
NEW QUESTION 66
The EPL service exclusively uses bandwidth on the line, which is highly secure. It is applicable to the private line application of VIP customers.
- A. TRUE
- B. FALSE
Answer: A
NEW QUESTION 67
Which of the following are the service board types of MSTP devices? (Multiple Choice)
- A. Service processing board with interfaces
- B. Auxiliary board
- C. Interface board
- D. Service processing board
Answer: A,C,D
NEW QUESTION 68
In the case of 1+1 linear MSP, which of the following switching modes do not require the enabling of the APS protection protocol? (Multiple Choice)
- A. Dual-ended non-revertive mode
- B. Single-ended non-revertive mode
- C. Single-ended revertive mode
- D. Dual-ended revertive mode
Answer: B,C
NEW QUESTION 69
A PAUSE frame uses a reserved multicast address and is not forwarded by a bridge or switch. In this way, the PAUSE frame does not generate any additional information.
- A. TRUE
- B. FALSE
Answer: A
NEW QUESTION 70
Which of the following communication protocols are used for DCN management on Huawei devices? (Multiple Choice)
- A. OSI
- B. HWECC
- C. FTP
- D. TCP/IP
Answer: A,B,D
NEW QUESTION 71
Which of the following is the frame whose VC-4 J1 byte is indicated by the current frame's AU pointer?
- A. None of the above
- B. Current frame
- C. Previous frame
- D. Next frame
Answer: D
NEW QUESTION 72
When an optical fiber between node A and node B is broken, the RU on node B detects the OTS_LOS alarm and inserts the OTS_BDI alarm to node A.
The RU on node A reports the OTS_BDI alarm. The line board on the downstream C node reports the OCh_SSF alarm.
- A. TRUE
- B. FALSE
Answer: A
NEW QUESTION 73
Which of the following is the multiplexing mode of SDH?
- A. Flexible mapping
- B. Flexible mapping and synchronous multiplexing
- C. Asynchronous multiplexing
- D. Flexible mapping and asynchronous multiplexing
Answer: B
NEW QUESTION 74
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