Huawei HCIA-Transmission(Huawei Certified ICT Associate-Transmission) - H31-311-ENU Exam Practice Test

Which of the following are the components of a WDM system multiplexing N wavelengths? (Multiple Choice)

Which of the following clock working modes support the ITU-T G.781 standard? (Multiple Choice)

After PDH services are configured on a per-NE basis, a complete trail cannot be searched out.
Which of the following are possible causes? (Multiple Choice)

The difference between a dispersion compensation fiber and a common fiber is that the dispersion compensation fiber has a negative dispersion coefficient at ().

If the overhead bytes pass through the backplane bus between two slots, the two slots are called paired slots. Paired slots implement automatic transparent transmission of overhead bytes, such as (), (), and ( ). This improves MSP switching performance and protects DCC communication with other NEs even if the SCC board on the local NE is offline. (Multiple Choice)

The management scope of an OMSn is the path from the input optical port on a multiplexer unit at the transmit site to the output optical port on a demultiplexer unit at the receive site, which is called an optical multiplexing section (OMS) path.

An optical amplifier unit compensates for line loss and extends transmission distance. Connecting multiple optical amplifier units in cascading mode can infinitely extend transmission distance of a system.

According to the formula of "ODUk rate = 239/(239-k) x STM-N frame rate", the ODU4 rate is equal to 239/235 x STM-N frame rate.

Both PDH and SDH have globally unified standards.

The SNCP switching speed can be improved if you classify the SNCP services that have the same source, sink, or route into groups.

Which of the following is the meaning of "L" in the optical module parameter "L-64.2"?