Practice Free 4A0-255 Nokia Advanced Optical Network Design Exam Questions Answers With Explanation

Step 2(analyze Traffic Demand and Step 4 ( Define Network Topology)

Step (Define Network Architecture ) and Step 5( Evaluate Traffic Demandon Architecture)

Step2 (Analyze Available) and Step 8 (Analyze Cost).

The steps to befollowed depended on the requirement of the network extension.

An OUT.

An ODU.

An OPU.

An OH byte

The management plane DCN uses in-band communication.

The management plane DCN can be connected to each NEs via OSS/OBS interface.

The management plane DCN can be connected to each NEs directly.

The management plane DCN enables direct communication between the NEs.

QPSK

BPSK

4QAM

DP-QPSK

BER is the ratio of redundant bits to correct bits.

BER is measured at both the transmitted and receiving ends.

BER can be measured beforeafter the FEC decoding.

BER can be accurately measured in a short period of time , for any rate.

To reduce the impact of chromatic dispersion.

To properly use the available bandwidth of the fibers.

To enable each channel to support a higher modulation format.

To reduce non-linear impairments between coherent and non-coherent channels.

Improved spectral efficiency

Simplified management of the carriers

Narrower spacing between carries of the super-channel

Impairment-free transmission