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NEW QUESTION 86
Customer Example 1+1 protect when using different routes, the same wavelength cannot be used for the working wavelength and the guard wavelength.
- A. TRUE
- B. FALSE
Answer: B
NEW QUESTION 87
For an MSTP device, the service layer path is a path existing on the network management side, and the client layer path is a path existing on the network element side.
- A. TRUE
- B. FALSE
Answer: A
NEW QUESTION 88
Which of the following description of the performance parameters of line fiber quality monitoring is wrong?
- A. The total loss of the fiber will affect the actual detection distance. The dynamic range of the same detection mode is fixed. The larger the total loss of the fiber, the smaller the distance that can be detected.
- B. Line fiber quality monitoring function increases the monitoring accuracy by adding the averaged results to the average. The actual time required from the start detection to the software returning the test result will be greater than the "detection time" is set.
- C. Different modes of light pulse width are different in detection, pulse width affects distance accuracy and monitoring distance. The larger the pulse width, the larger the dynamic range, the longer the test distance and the higher the range measurement accuracy.
- D. Increasing the pulse width increases the duration of the laser emission, which increases the energy injected, allowing for a larger dynamic range, but an increase in pulse width results in a larger dead zone.
Answer: C
NEW QUESTION 89
What are the prerequisites for creating a bidirectional MPLS tunnel? (Multiple Choice)
- A. Port properties have been configured correctly
- B. Users have network administrator user rights of "Administrators" and above
- C. The LSR ID of each NE is correctly configured.
- D. Determine the bandwidth of the MPLS Tunnel
Answer: A,B,C,D
NEW QUESTION 90
The following protection methods belonging to NG WDM optical layer protection are: (Multiple Choice)
- A. Optical line protection
- B. Customer side 1+1 protection
- C. ODUk SNCP protection
- D. 1+1 protection inside the board
Answer: A,B
NEW QUESTION 91
Which of the following is not a part of the ASON Control Protocol?
- A. LMP
- B. RSVP-TE
- C. OSPF-TE
- D. IS-IS
Answer: D
NEW QUESTION 92
Which of the following monitoring boards do not support 1588v2 signal processing and transparent transmission?
- A. ST2
- B. SCI
- C. AST2
- D. SC2
Answer: A
NEW QUESTION 93
After starting the extended SSM protocol, in addition to determining the clock quality level and priority, the clock ID is also determined. After receiving the clock signal with the ID, the network element considers that the source is unavailable if it is judged to be the clock signal sent by the station. In this way, even after passing through multiple sites, the network element can still recognize the clock signal sent by itself, preventing the formation of a timing loop.
- A. TRUE
- B. FALSE
Answer: A
NEW QUESTION 94
Since the nonlinear effect is generated, its influence on the service signal cannot be repaired. Therefore, the treatment of the nonlinear effect of the existing network is to avoid the occurrence of nonlinear effects.
- A. TRUE
- B. FALSE
Answer: A
NEW QUESTION 95
MPLS APS is a network protection mechanism. It implements service switching by using the MPLS OAM detection function.
- A. True
- B. False
Answer: A
NEW QUESTION 96
Which of the following reasons may cause a business error? (Multiple choice)
- A. The tail wire connector is seriously polluted
- B. The temperature in the equipment room is too high
- C. Dispersion compensation is unreasonable, such as under- or over-compensation
- D. The optical power of the incoming fiber is too high or too low
- E. Transmitting laser performance degradation of the originating OTU board
Answer: A,B,C,D,E
NEW QUESTION 97
The transmission plane mainly performs functions such as optical signal transmission, configuration protection switching, and reconnection, and ensures the reliability of the transmitted optical signal. However, the switching action of the transport layer is performed under the influence of the management dry surface and the control plane.
- A. TRUE
- B. FALSE
Answer: A
NEW QUESTION 98
The service types supported by the PND2 board used by the OSN 8800 are: (Multiple choice)
- A. VPLS
- B. EPLAN
- C. EPL
- D. VPWS
Answer: A,D
NEW QUESTION 99
Which of the following signals can be used as input or output signals of an external clock interface?
- A. 2.048 Mbit/s
- B. 155 Mbit/s
- C. 34 Mbit/s
- D. 2.048 MHz
Answer: B
NEW QUESTION 100
In the Colored&Directioned scenario of the 4D ROADM, if you want to implement local service scheduling in four directions, how many sets of M40V+D40 are needed?
- A. 0
- B. 1
- C. 2
- D. 3
Answer: A
NEW QUESTION 101
In the case of the OptiX OSN equipment, when the standby board is normal, which of the following operations does not cause the active/standby switching of the cross-connect board or clock board?
- A. Open the upper and lower ejector levers of the active board at the same time.
- B. Perform a cold reset on the cross-connect or clock board.
- C. Deliver the active/standby switchover command.
- D. Delete the active cross-connect board or clock board logically.
Answer: D
NEW QUESTION 102
Which of the following is not a precaution after board replacement?
- A. Check the indicator blinking status of the board and ensure that the board works properly.
- B. /For functional units that have backups, check whether the switchover is normal.
- C. Ensure that no abnormal alarm.
- D. Record the settings of jumpers and DIP switches on the board.
Answer: C
NEW QUESTION 103
The OD system monitors the main optical path performance in each optical multiplexing section (OMS),which of the following items are monitored?
- A. whether a fiber cut occurs on the main optical path.
- B. whether the optical power of the transmit-end OA board is out of the permitted range.
- C. whether the line loss compensation is out of the permitted range.
- D. whether the line loss exceeds the design end of life (EOL) value
Answer: A
NEW QUESTION 104
MPLS tunnel APS protection supports multiple types of command switching and has different priorities.
Which of the following command switching types has the highest priority?
- A. Practice Switching
- B. Force Switching
- C. Manual Switching
- D. Locked Switching
Answer: D
NEW QUESTION 105
In the WDM system, what is the reason for the fiber attenuation and bit error rate? (Multiple Choice)
- A. Fiber break
- B. Fiber aging
- C. Fiber damage
- D. Fiber bending
Answer: B,C,D
NEW QUESTION 106
The following description of the alarm, which is correct? (Multiple choice)
- A. OTUKAIS: OTUK alarm indication signal, the AIS signal is transmitted downstream, indicating that the upstream detected signal is invalid.
- B. OTUK-TIM: The OTUK trace identifier is the TTI (Trail Trace Identifier) mismatch. This alarm is generated if the trace identifiers of the peer end and the local end do not match and the TIM detection is enabled during the control process. Compare the API (Access Point Identifiers) in the input signal with the desired API.
- C. OTUk-LOM: Multi-frame alignment signal abnormal alarm, multi-frame positioning processing continues the multi-frame out-of-synchronization (o0M) state for 3ms, generating OTUelom alarm.
- D. OTUKBDI: OTUk backwards indication alarm. When the signal detected by the SM segment fails, the value of the BDI byte is 1, and the alarm is reported.
Answer: A,B,C,D
NEW QUESTION 107
The OCh path is created using the single station method. After the creation is completed, the 0ch path is not searched. Which are the possible reasons? (Multiple choice)
- A. errors in source and sink ports in the site
- B. Inconsistent wavelengths of the line boards at both ends of the source and sink
- C. Missing logical fiber between sites
- D. Line attenuation is too large
Answer: B,C
NEW QUESTION 108
Which layer of the TCP/IP protocol is the TCP/UDP protocol located?
- A. Application layer
- B. Transport layer
- C. Data link layer
- D. Network layer
Answer: B
NEW QUESTION 109
The user-oriented interface and the interface for the transport network of the E-Line service are
____ and _____.
- A. UNI, NNI
- B. NNI, UNI
- C. UNI, UNI
- D. NN, NNI
Answer: A
NEW QUESTION 110
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