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NEW QUESTION 41
The service types supported by the PND2 board used by the OSN 8800 are: (Multiple choice)
- A. EPLAN
- B. VPLS
- C. EPL
- D. VPWS
Answer: B,D
NEW QUESTION 42
A and C are WDM OTM sites, and B is a regeneration site. If the ODU2_LCK signal is inserted at site A, which of the following statements are correct?
- A. Site A reports a ODU2_PM_BDI minor alarm.
- B. Site A reports a ODU2_PM_LCK minor alarm.
- C. Site C reports a ODU2_PM_LCK minor alarm.
- D. Site C reports a ODU2_PM_BDI minor alarm.
Answer: A
NEW QUESTION 43
What common methods for MSTP device fault location can be summarized as?
- A. One loopbacks, two board change, three analysis.
- B. One analysis, two loopbacks, three board change.
- C. One analysis, two board change, three loopbacks.
- D. One board change, two loopbacks, three analysis.
Answer: B
NEW QUESTION 44
OLA sites can also use ESC.
- A. TRUE
- B. FALSE
Answer: B
NEW QUESTION 45
In a WDM system, after a distance of transmission, the OSNR of the signals at the receive end decreases to a certain extent. Which of the following is the main cause?
- A. The fiber attenuation is too large.
- B. Use of EDFA
- C. New optical fiber is not used.
- D. Use of Demultiplexer Multiplexer
Answer: A
NEW QUESTION 46
In 2.5G MSP ring composed of four MSTP sites, when protection switch occurs, which of the following statements about the alarm report are correct?
- A. Report the APS-INDI alarm on the circuit board.
- B. PS alarm is reported on the tributary board.
- C. APS-INDI alarm is reported on the XCS board.
- D. Report the APS-INDI alarm on the system control board.
Answer: C
NEW QUESTION 47
Which of the following description of ODUk ring protection is wrong?
- A. Enhanced ODUk ring network protection, no need to set up management nodes. If the management node is set, there is no impact on protection.
- B. ODUk ring network protection is mainly applied to the ring network configuration of distributed services. It protects multiple distributed services between all sites by occupying two different ODUk channels.
- C. The agreement must be completed after the protection configuration of each site on the ring network is completed.
- D. Ordinary ODUk ring network protection does not require setting a management node.
Answer: A
NEW QUESTION 48
A, C are the WDM OTM stations, and B is the relay station.
When the transmission direction of the A to B stations is interrupted, the Wavelength side of the B-stack OTU relay board reports the R_LOS emergency alarm and runs the processing to the upstream A.
The station side OTU2_BDI secondary alarm. At the same time, the alarm continues to be transmitted to the downstream station of the B station. After the alarm is processed at the C site, the ODU2_PM_AIS minor alarm is reported on the WDM side of the C-site OTU, and the ODU2_PM_BDI secondary alarm is transmitted back to the upstream station A.
- A. FALSE
- B. TRUE
Answer: B
NEW QUESTION 49
Which of the following unified circuit boards can support the intersection of VC, packet and ODUk? (Multiple choice)
- A. HSNS4
- B. HUNQ2
- C. UNQ2
- D. U210
Answer: B,D
NEW QUESTION 50
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. 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.
- C. 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.
- D. 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.
Answer: D
NEW QUESTION 51
Which of the following statements about the line fiber quality monitoring performance parameters is wrong?
- A. The pulse width of emitted optical pulses varies according to monitoring modes, and affects the detection distance and measurement precision. A greater pulse width provides a larger dynamic range, longer detection distance and better measurement precision.
- B. Measurement is performed multiple times within the detection time. The average value is obtained based on the measurement results to improve the measurement precision. The actual duration from the time when a detection event starts to the time when the detection results are returned will be longer than the Detection time.
- C. When the pulse width increases, the light emitting time increases and consequently a larger energy is obtained. This means that a larger dynamic range can be acquired but also larger dead zones will result.
- D. The total fiber loss will affect the detection distance and the dynamic range is fixed for the same detection mode. Therefore, a larger total fiber loss indicates a smaller detection distance.
Answer: D
NEW QUESTION 52
The LOA board can implement the L2 scheduling function of the Ethernet in OSN 1800.
- A. False
- B. True
Answer: B
NEW QUESTION 53
Before the optical power commissioning of an ROADM board, you need to configure virtual optical-layer services. Otherwise, the ROADM board blocks all wavelengths by default.
- A. False
- B. True
Answer: B
NEW QUESTION 54
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: B
NEW QUESTION 55
Which of the following statements about avoiding the generation of discrete trails are correct?
- A. A fiber cut or switching test must be performed on the trail with protection routes to ensure that the configuration is complete and standard.
- B. Use the trail function for configuration.
- C. Guide users to learn service configuration specifications.
- D. For services configured on a per-NE basis, search for trails on the NMS to ensure that the service configurations are complete and standard.
Answer: C
NEW QUESTION 56
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