单项选择题
A.2 B.3 C.4 D.20 E.22 F.24
A customer has 2 DS1s to add between adjacent nodes in ...
单项选择题A customer has 2 DS1s to add between adjacent nodes in a UPSR ring. What type of circuit should you recommend?（）
A. VT circuits B. STS circuits C. VT tunnel circuits D. 1:1 protection circuits E. 1:N protection circuits
Click the Exhibit button. Given the information shown i...
Click the Exhibit button. Given the information shown in the exhibit, when creating 2 DS1 circuits, how many STS ports are used on the VT1.5 matrix at Node 1 as VT circuits and how many are used after using VT tunnels?（）
A.2；0 B.3；2 C.3；5 D.4；0 E.6；0 F.6；2
A customer wants to create a 1:1 protection group with ...
单项选择题A customer wants to create a 1:1 protection group with a DS3N-12 card. Which card slots would allow for a 1:1 protection?（）
A. Slot 2 and Slot 4 B. Slot 4 and Slot 6 C. Slots 5 or 13 only D. Slot 16 and Slot 17
