多项选择题

A. no congestion avoidanceB. not for bandwidth intensiv……

What are two considerations to using IP Multicast delivery?（）

A. no congestion avoidance
B. not for bandwidth intensive applications
C. no guaranteed delivery mechanism
D. source sends multiple data streams out each interface

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多项选择题You are the Cisco Network Designer in Cisco.com. Which signal and noise values will result in the best phone communication with an access point?（）

A. signal strength 5dBm
B. signal strength 6dBm
C. noise level 4dBm
D. noise level 5dBm

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

多项选择题Which three Layer 2 access designs have all of their uplinks in an active state?（）

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

多项选择题Which three objectives would be met by designing Layer 3 switching in the Campus Backbone of a medium size installation?（）

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WhichthreeLayer2accessdesignshavealloftheiruplinksinanactivestate？（）

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