单项选择题
How long is an IPv6 address?（）
A. 32 bits
B. 64 bits
C. 128 bits
D. 256 bits
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相关考题
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单项选择题
What is the default function of a secondary path in MPLS?（）
A. to act as an equal-cost path to the primary path
B. to enable another LSP for load balancing
C. to act as a diverse backup path to the primary path
D. to allow the use of explicit path selection via EROs
