Free Access Huawei.H31-341.v2022-05-18.q167 Practice Test (Page 33)

Question 156

The maximum output optical power of an OBU board is 20 dBm, when it is used in a C-band 80-channel system, what is the standard per-channel output optical power?

A.-2dBm

B.+4dBm

C.+ldBm

D.+7dBm

Question 157

The NS4 board features test includes: (Multiple choice)

A.Receive sensitivity

B.Center wavelength test

C.-20dB spectral width test

D.Side mode suppression ratio

Question 158

The transmission windows of 1310 nm and 1550 nm are low loss windows. In DWDM systems, only the 1550nm transmission window is used. Which of the following is the main reason?

A.The 1550 nm wavelength region is suitable for long-distance transmission.

B.The nonlinear effect in the 1550nm wavelength region is very small.

C.The operating wavelength flatness area of EDFA is contained in this window.

D.None of the above

Question 159

For an MSTP device, the service layer path is a path existing on the network management side, and the client layer path is a path existing on the network element side.

A.TRUE

B.FALSE

Question 160

The optical and electronic shelves of the OSN 9800 are connected through the master-slave subrack cascading mode and connected through the GE 1/2 port on the CTu board.