单选题When BGP tuning is used, how is packet flow into the e-commerce module controlled?（）Aby tracking the status of objects along the path to the e-commerce moduleBby detecting undesirable conditions along the path to the e-commerce moduleCby using the MED to communicate the site preferences for traffic to multiple ISPsDby communicating the available prefixes, routing policies, and preferences of each site to its ISPEby moving the SLB to a position where selected traffic to and from the servers does not go through the SLB
单选题
When BGP tuning is used, how is packet flow into the e-commerce module controlled?（）
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
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