H13-341 Online Practice Questions and Answers

If OCh trails fail to be created by trail, which are possible causes?

A. There are still alarms that are not cleared on the boards involved in the OCh.

B. The wavelength settings at the source and sink ends are inconsistent.

C. Some fibers are not connected.

D. There is no server trail.

The maximum output optical power of an OBU board is 20 dBm, when it is used in a C-band 80-channel system, what is the standard per-channel output optical power?

A. +1dBm

B. -2dBm

C. +7dbm

D. +4dBm

Which of the following residual dispersion values are within the dispersion tolerance of the TN52ND2 board?

A. 900ps/nm

B. 500ps/nm

C. 700ps/nm

D. 600ps/nm

Which of the following protection schemes require the APS protocol?

A. ODUk SPRing protection

B. ODUk SNCP

C. SW SNCP

D. 1:1 optical line protection

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. Delete the active cross-connect board or clock board logically.

B. Open the upper and lower ejector levers of the active board at the same time.

C. Deliver the active/standby switchover command.

D. Perform a cold reset on the cross-connect or clock board.

In the scenario where the non-convergence OTU processes OTN standard signals, both A and B are WDM sites. After receiving the OTUk_TIM alarm on the client side, the OTU board at station A sends the OTUk_BDI alarm to the upstream. When the TIM follow-up action is disabled, the alarm is no longer transmitted to the downstream. When the TIM follow-up action is enabled, an SF event is generated. The WDM side of the OTU board at station B reports the ODUk_PM_AIS alarm, and the ODUk_PM_AIS alarm is transmitted to the downstream. The client equipment reports this alarm. After the WDM side of the OTU board at station B receives the OTUk_TIM alarm and the TIM follow-up action is disabled, the alarm is no longer transmitted to the downstream. When the TIM follow-up action is enabled, an SF event is generated. After the client side of station B processes the SF event, the client equipment reports the ODUk_PM_AIS alarm.

A. True

B. False

Which of the following statements about MPLS is wrong?

A. MPLS has two planes: control plane and forwarding plane. The control plane is connection-oriented, the forwarding plane is connectionless.

B. MPLS is not a service or application. It is a standard routing and switching platform that supports various upper-layer protocols and services.

C. In the packet transport field, the MPLS technology is mainly used to construct tunnels to carry various types of services (for example, TDM, ATM, and Ethernet) transmitted by PWE3 to implement end-toend transmission of services on packet networks.

D. MPLS packet forwarding is based on labels.

MPLS APS is a network protection mechanism. It implements service switching by using the MPLS OAM detection function.

A. True

B. False

Which of the following is not a PW APS switching condition?

A. A warm reset is performed on the board.

B. The board software is faulty.

C. MPLS_PW_SF

D. A cold reset is performed on the board.

The troubleshooting methods that can be used to separate external faults are:

A. Configuration Data Analysis

B. Meter Test

C. Replacement

D. Loopback