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NEW QUESTION # 338
Which of the following reasons will not cause the network management to report a MUT_LOS alarm?
- A. OA board in port failure
- B. OTU board failure
- C. The pigtail connecting the DMUX board out port and the OA board in port is faulty.
- D. DMUX board out port failure
Answer: B
NEW QUESTION # 339
What are the differences between AU pointer and TU pointer? (Multiple choice)
- A. The number of bits occupied by pointer values is different
- B. The units of adjustment are different
- C. The bytes storing the pointer value are different
- D. The scope of instructions is different
Answer: B,C,D
NEW QUESTION # 340
In the network interface of OTN, the network interface within the same operator is the intra-domain interface, which is further divided into the interface between equipment from different manufacturers, IaVI, and the interface within the subnet of equipment from the same manufacturer, IrVI, according to the different equipment manufacturers.
- A. True
- B. False
Answer: B
NEW QUESTION # 341
What are the main functions of LAG? (Multiple choice)
- A. Detect and report failures at service access points and intermediate transmission networks
- B. Increase link capacity
- C. Improve link availability
Answer: A,B
NEW QUESTION # 342
The OptiXtrans DC908 chassis is only equipped with 1 sCc board and 1 PANEL board and cannot be configured as 1+1 dual master control.
- A. TRUE
- B. FALSE
Answer: A
NEW QUESTION # 343
The 1310nm and 1550nm transmission windows are low-loss windows. In a DWDM system, only the 1550nm transmission window is used. Which of the following is the main reason?
- A. None of the above
- B. 1550nm wavelength region is suitable for long-distance transmission
- C. The nonlinear effect in the 1550nm wavelength region is very small
- D. The EDFA operating wavelength flatness region is included in this window
Answer: D
NEW QUESTION # 344
According to ITU-T's recommendations, the requirement that the MSP switching time should be within 50ms is conditional. For example, the number of net elements on the entire ring network is less than 16.
- A. True
- B. False
Answer: B
NEW QUESTION # 345
SXCL board only supports SDH service cross-connection.
- A. True
- B. False
Answer: A
NEW QUESTION # 346
Which of the following options are correct about the problem that the emergence of WDM can solve (P170)? (Multiple choice)
- A. Insufficient bandwidth capacity
- B. Inflexible rate upgrade
- C. Short transmission distance
- D. Optical cable resources are tight
Answer: A,B,C,D
NEW QUESTION # 347
In the system control unit, which of the following databases does not lose data after a power failure?
(Multiple choice).
- A. MDE
- B. FDB0
- C. DRDB
- D. FDB1
Answer: B,D
NEW QUESTION # 348
Which of the following descriptions of the GFP encapsulation protocol is wrong?
- A. There are two working modes: GFP-F and GFP-T
- B. High overhead and high packaging efficiency
- C. High degree of standardization
- D. In principle, GFP can encapsulate any protocol
Answer: B
NEW QUESTION # 349
Unified line type single board supports mixed transmission of OTN, SDH and packet services, and also supports the transmission of one of the services.
- A. True
- B. False
Answer: A
NEW QUESTION # 350
When the ACT indicator of the SDH board is off, it means that the board has a hardware failure and cannot be used.
- A. True
- B. False
Answer: B
NEW QUESTION # 351
When configuring 1+1 optical line protection, you can select RI1TO1 or RI2/T02 as the working channel according to actual conditions.
- A. True
- B. False
Answer: A
NEW QUESTION # 352
Optical module parameter "L-64.2" in "2" indicates which of the following working windows?
- A. 1550nm
- B. 1310 nm
- C. 1610nm
- D. 880 nm
Answer: A
NEW QUESTION # 353
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