H31-311-ENU 試験問題を無料オンラインアクセス

According to ITU-T recommendations, the requirement that the MSP switching time should be within 50 ms is conditional. For example, the number of NEs on an entire ring network is less than 16.

• A.TRUE
• B.FALSE

In ITU-T G.692 recommendations, the allowed channel frequency is based on the reference frequency ( ) and the channel spacing can be 100 GHz, 50 GHz, or 25 GHz.

• A.196.1 THz
• B.194.1 THz
• C.193.1 THz
• D.192.1 THz

The value of the MFAS byte increases with the sequence number of the OTUk/ODUk base frame, and a maximum of ( ) base frames are included.

• A.128
• B.512
• C.64
• D.256

The STM-64 has ( ) AU pointers.

• A.4
• B.64
• C.1
• D.16

PDM uses the polarization beam splitter to divide the laser into two perpendicular directions: x and y.

• A.TRUE
• B.FALSE