NO.181 When the board detects that the error rate of the regenerator section signal exceeds 10 by detecting the B1 byte, the B1_SD alarm is reported.
- A. TRUE
- B. FALSE
NO.182 The following description of the cross-board of the OSN 8800 T64 subrack. Which is correct? (Multiple choice)
- A. XCT+SXM can support ODU0, 1, 2, and 3 levels of crossover.
- B. XCT+SXM can be used together to provide an ODUK crossover with a total capacity of 2.56 Tbit/s.
- C. XCT+SXM can be regarded as a whole when working. If any faulty, the two boards will be switched together.
- D. Enhanced subrack can only be configured with UXCT+USXM or UXCT+USXH
NO.183 In the ROADM, which of the following layer of OTN paths do not need to be manually configured, it can be obtained directly by path search? (Multiple Choice)
- A. OTS
- B. OSC
- C. OMS
- D. OCh
NO.184 VPLS (Virtual Private LAN Service) is a Layer 2 VP technology that simulates a local area network.
- A. TRUE
- B. FALSE
NO.185 The rigid pipes that MS-OTN equipment can provide are ________. (Multiple choice)
- A. LSP
- B. Wavelength
- C. 0DUk
- D. PW
NO.186 What common methods for MSTP device fault location can be summarized as?
- A. One board change, two loopbacks, three analysis.
- B. One analysis, two loopbacks, three board change.
- C. One analysis, two board change, three loopbacks.
- D. One loopbacks, two board change, three analysis.
NO.187 Since the EALC/ALC function is used in the SOM system, there is a possibility of business interruption during optical power adjustment.
- A. TRUE
- B. FALSE
NO.188 The service types supported by the PND2 board used by the OSN 8800 are: (Multiple choice)
- A. VPWS
- B. EPL
- C. VPLS
- D. EPLAN
NO.189 Before querying the error and optical power on the network management, you need to perform the () operation. Otherwise, you cannot query the corresponding teaching data.
- A. Create a logical fiber
- B. Configuration data
- C. Synchronizing network metadata
- D. Turn on NE performance monitoring time.
NO.190 The following description of 1+1 and 1:1 optical line protection, the fault is (). (Multiple Choice)
- A. 1:1 optical line protection switching mode can only be double-ended switching
- B. The main difference between 1:1 optical line protection and 1+1 optical line protection is whether the APS protocol is required.
- C. 1+1 optical line protection and 1:1 optical line protection use the same protection board
- D. According to different placement of OLP boards in the network, 1+1 optical line protection can be divided into 1+1 OMS path protection and 1+1 OTS path protection.
NO.191 Which of the following are not part of the 400G originating modulation technology?
- A. Advanced oDSP algorithm
- B. Multi-carrier generation and multiplexing
- C. High-order modulation (xQAM)
- D. FDDM/Nyquist spectrum compression technology
NO.192 For emergency handling of business interruptions, fault location should be performed as soon as possible, and then the business should be resumed.
- A. TRUE
- B. FALSE
NO.193 When performing fiber synchronization, the network element does not create a fiber. What does it indicate?
- A. Fiber connection only on the NE side.
- B. Fiber connection that does not exist on the network management side and the NE side.
- C. The fiber connection exists on both the network management side and the network element side.
- D. Fiber connection exists only on the local network management side.
NO.194 The steps that must be performed when configuring the Ethernet private line service carried by the PW are as follows: (Multiple Choice)
- A. Configure QoS
- B. Configure MPLS tunnel
- C. Configure port DCN
- D. Configure the UNI port
NO.195 Since the CWDM system does not use an optical amplifier, the focus of the commissioning is whether the light collection of the OTU board is reasonable.
- A. TRUE
- B. FALSE