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?（）

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

单项选择题WhenBGPtuningisused，howispacketflowintothee-commercemodulecontrolled？（）

A.by tracking the status of objects along the path to the e-commerce module
B.by detecting undesirable conditions along the path to the e-commerce module
C.by using the MED to communicate the site preferences for traffic to multiple ISPs
D.by communicating the available prefixes， routing policies， and preferences of each site to its ISP
E.by moving the SLB to a position where selected traffic to and from the servers does not go through the SLB