2022年最新のH31-311_V2.5試験解答最新版Fast2test H31-311_V2.5のPDF問題集をダウンロードせよ（200問題と解答)
無料2022年最新のHuawei Transmission H31-311_V2.5問題集を提供しております！Fast2test
質問 23
Automatic Laser Shutdown (ALS): When no optical signal is received, the ALS function automatically turns off the corresponding optical module. This feature protects field maintenance personnel.
- A. True
- B. Error
正解: A
質問 24
The number of bit error blocks on each VC4 channel is detected by B3 on the receiving side. At the same time, the information is sent back to the sender via Q, and HP-REI and HP-FEBBE report on the sender.
- A. K3 (b1-b4)
- B. J(bt-4)
- C. G1 (b1-b4)
- D. G1 (b5-b8）
正解: C
質問 25
When using the LCAS function, which of the following overhead bytes is used to transmit control information? (Multiple Choices)
- A. K2
- B. M1
- C. K4
- D. H4
正解: C,D
質問 26
In the frame structure of the SDH signal, there are large overhead bytes for operation, management, and maintenance (OAM). Overhead bytes account for all bits () of the entire frame and greatly enhance the monitoring capabilities of the network.
- A. 1/10
- B. 1/30
- C. 1/40
- D. 1/20
正解: D
質問 27
Which of the following is the meaning of "L" in the optical module parameter "L-64.2"
- A. Emission wavelength
- B. Dispersion coefficient
- C. Transmission distance
- D. Fatigue of reception
正解: C
質問 28
Which of the following is the frame indicated by the VC-4 J1 byte by the AU pointer of the current frame?
- A. Previous frame
- B. Current framework
- C. Next frame
- D. None of the above
正解: C
質問 29
Which of the following is the multiplexing method of SDH?
- A. flexible mapping
- B. flexible mapping and asynchronous multiplexing
- C. Asynchronous multiplexing
- D. Flexible mapping and synchronization multiplexing
正解: D
質問 30
Which of the following different types of ESC are divided according to the principles of implementation? (Multiple choice)
- A. insert DCC
- B. Pilot adjusts DCC
- C. Fixed frame structure DCC
- D. None of the above
正解: B,C
質問 31
In MSP networking, when the optical fiber is connected between sites, the east light plate of the site is connected to the west light plate of the downstream site, and these stations are connected in turn to form a ring. In this case, the direction from the toko plate of the site to the wine light plate of the downstream station is the direction of the main ring, and the direction of forming the ring is the direction of service.
- A. True
- B. Error
正解: B
質問 32
Which of the following is the default WTR time for MSP switching?
- A. 15 minutes
- B. 10 minutes
- C. 6 min
- D. 12 min
正解: B
質問 33
Compared with dense wavelength division multiplexing (DWDM) systems, crude glass division multiplexing (CWDM) systems provide a certain amount of glass length and transmission distance within (kmkm), which greatly reduces system cost and has strong flexibility
- A. 0
- B. 1
- C. 2
- D. 3
正解: C
質問 34
Which of the following statements regarding the sequence of signal flows between the SDH interface and the cross-connecting unit is correct?
- A. SPT<> MS <> MSA<> RST > MSP<> HPT
- B. SPI <> RST <> MST <> MSP<> MSA <> HPT
- C. SPI <> RST <> MSA<> MSP<> MST <> HPT
- D. SPI <> MST<> RST <> MSA <> MSP >HPT
正解: B
質問 35
TU-AIS is often encountered during network maintenance. Which of the following alerts can trigger a TU-AIS alert? (Multiple choice).
- A. AU-LOP
- B. B2-EXC
- C. HP-TIM
- D. R-LOS
正解: A,B,C,D
質問 36
In the Windows operating system, the log files of the U2000 program are stored in the () directory of the U2000 installation disk.
- A. /U2000/server
- B. /U2000/client/log
- C. /U2000/Client
- D. /u2000/server/log
正解: D
質問 37
Manual configuration will clear the data on the NE side
- A. True
- B. Error
正解: A
質問 38
Which of the following bytes can be used for wired phones between two REG devices?
- A. E1 and E2
- B. E1
- C. None of the above
- D. E2
正解: B
質問 39
The MAC loopback and PHY loopback are used for fault location. When the MAC loopback is set to in loop, the PHY loopback can be set according to the actual situation.
- A. True
- B. False
正解: B
質問 40
RSOH, MSOH, HPOH and LPOH implement the monitoring function in descending order of the monitoring fan country.
- A. True
- B. Error
正解: A
質問 41
Which of the following clock operating modes supports the ITU-T G.781 standard? (Multiple choice).
- A. Tracking
- B. Self-curved running
- C. Master/Slave
- D. Hold
正解: A,B,D
質問 42
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H31-311_V2.5試験解答問題集：https://jp.fast2test.com/H31-311_V2.5-premium-file.html（200問題と解答)
無料2022年最新のHuawei Transmission H31-311_V2.5問題集を提供しております！Fast2test：https://drive.google.com/open?id=1A5Fye0rxcg3PwMbo9uLDlU0dgACacZNu