H31-311_V2.5 Exam Question 1
In Recommendation ITU-T G.692, the allowable channel frequencies are based on the reference frequency (), and the channel spacing can be 100 GHz, 50 GHz or 25 GHz.
H31-311_V2.5 Exam Question 2
Which of the following is the steps to multiplex a low-speed service into a high-speed SDH service? (Multiple choice).
H31-311_V2.5 Exam Question 3
The last 256 columns in the OTN frame structure are the FEC regions for forward error correction.
H31-311_V2.5 Exam Question 4
Which of the following is not the northbound interface provided by the U2000?
H31-311_V2.5 Exam Question 5
Which of the following is not the advantage of WDM?