Quiz Jueves

Which of the following networks is optical line protection mainly applied to?

• Chain network
• Ring network
• Mesh network
• Star network

Polarization mode dispersion (PMD) is the dispersion caused by different speeds of two crossed polarization states of optical signals.

• True

• False

Which of the following bytes is used to monitor bit errors in the regenerator section of SDH frame?

• B1
• B2
• B3
• V5

An OLA site can also be monitored by the ESC.

• True
• False

In the SDH optical synchronous transmission system, which of the following bytes is used to transmit the quality and usage information of clock sources?

• G1
• S1
• N1
• M1

The SM, PM and TCMi overheads on the OTN electrical layer all contains a one-byte BIP-8 field. The monitoring range of this field varies with the overhead.

• True
• False

In the two-fiber bi-directional multiplex section protection ring, you need to configure only services on the working channel.

• True

• False

Which of the following site types cannot implement service adding/dropping?

• OTM
• OLA
• FOADM
• ROADM

Which of the following principles is used for ODUk SNCP protection?

• Dual-Fed and selective receiving
• Dual-Receiving and selective switching

Which of the following statements about link status pass-through LPT is incorrect?

• When the LPT function is triggered, the port laser may be shut down or alternately switched on or off.
• The LPT function is triggered when both the access point and the service network are faulty.
• The LPT function is applicable to all services except OTN.
• The LPT function is bidirectional.