單項選擇題

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

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單項選擇題

Click the Exhibit button. Which type of protection is shown in the exhibit?（）

A.1+0
B.1+1
C.1：1
D.1：N

單項選擇題

You are provisioning a DS-1 circuit on an ONS 15454 UPSR configuration and XC-10G card. How many total VT ports are used within the VT matrix at the source node?（）

A.0
B.1
C.2
D.3
E.4