Quiz Martes

Which of the following effects is used by the Raman amplifier?

• Self-phase modulation (SPM)

• Chromatic Dispersion (CD)

• Stimulated Raman Scattering (SRS)

• Four-wave mixing (FWM)

Which of the following technologies is the main difference between an open system and an integrated system?

• Wavelength conversion technology
• Optical amplification technology
• MuItiplexing/Demultiplexing technology
• Optical supervisory technology

Which of the following statements about the EX40 board is false?

• The board is an enhanced 40-channel multiplexer/demultiplexer board.
• The board supports online optical power monitoring.
• The board cannot be used in a single-fiber bidirectional transmission system.
• The board can be used in a two-fiber bidirectional transmission system.

Generally, the incident optical power of a full-wavelength NG WDM system does not exceed 20 dBm. Which of the following is the main cause?

• To ensure the safety of maintenance personnel
• To prolong the service life of the board laser
• To avoid non-linear effects
• To protect optical cables

Compared with a dense wavelength division multiplexing (DWDM) system, a coarse wavelength division multiplexing (CWDM) system provides a certain number of wavelengths and a transmission distance within ( ) km, which greatly reduces system cost and has strong flexibility.

• 50
• 100
• 200
• 20

Which of the following can be the center wavelengths of the pump sources in an EDFA?

• 980 nm
• 1510 nm
• 1480 nm
• 1310 nm

Users can easily access NCE through a browser without installing traditional clients.

• True
• False

In the colorless scenario, the M40V/D40 board is used to add and drop wavelengths.

• True
• False

Which of the following are the types of destination MAC addresses in Ethernet frames?

• Multicast address

• Broadcast address

• Unicast address

• Bicast address

Which of the following are included in service management of transmission networks?

• E2E OTN service management

• OTN service-level fault diagnosis

• E2E microwave service management

• E2E packet service management