H13-341 Online Practice Questions and Answers

Which of the following functions is added to EX40 compared with X40?

A. Monitors the optical power of a single channel.

B. Supports optical-layer cross-connections.

C. Fewer slots are occupied.

D. More multiplexed and demultiplexed wavelengths

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

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. True

B. False

Which of the following alarms trigger optical line protection switching?

A. POWER_DIFF_OVER

B. R_LOF

C. MUT_LOS

D. R_LOS

Which of the following OTN trails does not need to be manually configured on an ROADM site, and can search out directly?

A. OSC

B. OCh

C. OMS

D. OTS

Before querying bit errors and optical power on the U2000, you need to perform the () operation. Otherwise, the corresponding data cannot be queried.

A. Enabling the NE Performance Monitoring Time

B. Creating the logical fiber

C. Synchronizing NE data

D. Configuring data

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 C reports a ODU2_PM_LCK minor alarm.

B. Site A reports a ODU2_PM_BDI minor alarm.

C. Site A reports a ODU2_PM_LCK minor alarm.

D. Site C reports a ODU2_PM_BDI minor alarm.

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.

Which of the following statements about avoiding the generation of discrete trails are correct?

A. Use the trail function for configuration.

B. For services configured on a per-NE basis, search for trails on the NMS to ensure that the service configurations are complete and standard.

C. A fiber cut or switching test must be performed on the trail with protection routes to ensure that the configuration is complete and standard.

D. Guide users to learn service configuration specifications.

Which of the following statements about the latency of a storage and forwarding device is false?

A. The last bit of the data frame enters the device and starts timing.

B. The first bit of the data frame enters the device and starts timing.

C. Reflects the performance of network devices. Generally, it is not compared with the bit forwarding device.

D. The first bit of the data frame appears at the output port of the device and stops timing.