单选题What is the action of "pop" in the context of MPLS switching？（）AIt removes the top label in the MPLS label stack.BIt adds a top label in MPLS label stack.CIt replaces the top label in the MPLS label stack with another value.DIt replaces the top label in the MPLS label stack with a set of labels.ENone of above.
单选题
What is the action of "pop" in the context of MPLS switching？（）
A
It removes the top label in the MPLS label stack.
B
It adds a top label in MPLS label stack.
C
It replaces the top label in the MPLS label stack with another value.
D
It replaces the top label in the MPLS label stack with a set of labels.
E
None of above.
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相关考题：
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