Question 246
For OSN3500, which of the following boards provides centralized backup function for the +33V power supply of each board in the subrack?
Question 247
The cascading methods for mapping Ethernet services to SDH include adjacent cascading and virtual cascading.
Question 248
The 48 wave OTM site needs to be equipped with an OAU amplifier for signal amplification.
Question 249
MPLS technology can be nested in multiple layers without any restrictions, and is only limited by (), which has good scalability. Which of the following is correct?
Question 250
What client-side service signals does the TNG1T401 board support? (Multiple choice)