单项选择题

Which enterprise caching mode eliminates the need for Layer 4 switches or WCCP enabled routers to intercept user requests?（）

A. transparent
B. proxy
C. reverse proxy
D. direct

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多项选择题

A. Flex Links
B. loop-free U
C. looped square
D. looped triangle
E. loop-free inverted U

多项选择题

A. scale to a large size
B. increase router peering
C. provide a flexible topology with no spanning tree loops
D. control broadcasts in the backbone

多项选择题

A.Flex Links
B.loop-free U
C.looped square
D.looped triangle
E.loop-free inverted U