H31-311_V2.5のPDFで合格させるスゴ問題集でH31-311_V2.5最新のリアル試験問題
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質問 # 50
The correct statement about the multiplex section remote error indication MS-REI is (): 1. B2 byte is the transmission channel; 2. M1 byte is the transmission channel; 3. sent back from the destination to the source 4. sent from the source to the destination; 5. indicates the number of errors detected after the destination receives the multiplex section signal.
- A. 2 4 5
- B. 1 4 5
- C. 1 3 5
- D. 2 3 5
正解：D
質問 # 51
A subnet can contain other subnets.
- A. True
- B. False
正解：A
質問 # 52
Which of the following descriptions of OTM-nm and OTM-nr.m optical layer interfaces of OTN is wrong?
- A. m represents the rate, and its value range is 01, 2, 3
- B. r means that some functions of the OTM have been removed. Here, it means that the oSC function has been removed.
- C. OTM-nr.m plus osc signal becomes OTM-nm
- D. n represents the number of waves carried at maximum capacity
正解：A
質問 # 53
For 100G (112Gbit/s) signal, the actual data baud rate is only 28G baud.
- A. True
- B. False
正解：A
質問 # 54
Which of the following options does the 802.1Q tag header contain? (Multiple choice)
- A. Type
- B. TCI
- C. FCS
- D. TPID
正解：B、D
質問 # 55
When the fiber between node A and node B is disconnected, the RU on node B detects OTS_LOS alarm and will OTS_BDI The ru of the alert inserted into node A of node A forces reports OTS BDI alarms. The board reports och_SSF alarm on the downstream C node.
- A. True
- B. False
正解：A
質問 # 56
Which of the following can be used as the central wavelength of the pump source in EDFA? (Multiple choice).
- A. 1510nm
- B. 1480nm
- C. 980 nm
- D. 1310nm
正解：B、C
質問 # 57
According to the formula "ODUk rate = 239/(239k) x STMN frame rate", ODU4 The rate is equal to
239/235x STMN frame rate.
- A. True
- B. False
正解：A
質問 # 58
MSTP equipment not only has the protection, recovery, OAM and other functions of SDH equipment, but also adds a service board that provides multi-service access.
- A. FALSE
- B. TRUE
正解：B
質問 # 59
Which of the following descriptions of the GFP encapsulation protocol is wrong?
- A. There are two working modes: GFP-F and GFP-T
- B. In principle, GFP can encapsulate any protocol
- C. High degree of standardization
- D. High overhead and high packaging efficiency
正解：D
質問 # 60
The unprotected chain consists of four network elements: NE1, NE2, NE3, and NE4. An end-to-end VC4 path NE1-NE4 is created, and NE5 is added between NE2 and NE3 for capacity expansion. The original configuration remains unchanged, and no service is configured on NE5. In this case, the unprotected chain becomes NE1-NE2-NE5-NE3-NE4. How many VC4 paths can be searched out?
- A. 0
- B. 1
- C. 2
- D. 3
正解：B
質問 # 61
The segment overhead of STM-4 is () bytes/frame.
- A. 9*8"4
- B. 9*9*8
- C. 9*8
- D. 9*9*4
正解：A
質問 # 62
The difference between dispersion-compensating fiber and ordinary optical fiber is that dispersion- compensating fiber has a negative dispersion coefficient at ().
- A. 1650nm
- B. 800nm
- C. 1550nm
- D. 1310nm
正解：C
質問 # 63
Which types of destination MAC addresses in Ethernet frames can be classified into? (Multiple choice)
- A. Broadcast address
- B. Multicast address
- C. Unicast address
- D. Multicast address
正解：A、B、C
質問 # 64
Which of the following statements is correct about the SSN1SEP1 service processing board?
- A. SSN1SEP1 can only work with the interface board to provide 155M electrical port services;
- B. In terms of logical configuration, SSNISEP1 does not need to be used in conjunction with the interface board and supports TPS protection;
- C. SSN1SEP1 can be used in any slot of OSN3500 without restriction;
- D. In terms of logical configuration, SSNISEP must be used in conjunction with the interface board;
正解：D
質問 # 65
By default, a B2-EXC alarm is reported when the number of B2 bit errors exceeds the () threshold.
- A. 0.001
- B. 0.00001
- C. 0.01
- D. 0000000001
正解：A
質問 # 66
40G non-coherent systems and 100G coherent systems cannot be mixed.
- A. True
- B. False
正解：A
質問 # 67
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