单项选择题

What is the maximum number of Cisco Catalyst 3750 Series Switches that can be united into a single manageable unit using the Cisco StackWise technology?（）

A.9
B.3
C.12
D.6

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单项选择题

As a network administrator, you issue the interface auto qos voip cisco-phone command on a port in an edge network. It is possible for a Cisco Catalyst switch to check if a Cisco IP Phone is directly attached to that port by:（）

A. using DHCP snooping
B. snooping the incoming 802.1Q VLAN tag
C. using CDP
D. snooping the CoS marking on the incoming frames

单项选择题

What is the most likely reason that an IBGP route that has been selected as a best route is not entered into the IP routing table?（）

A. Route reflectors are not passing updates properly.
B. BGP synchronization has been enabled.
C. The next-hop address is unreachable.
D. No loopback interface has been configured on a router.

单项选择题

Which Cisco IOS command is used to troubleshoot a problem in which a BGP session stays in the active state?（）

A. debug ip bgp updates
B. debug ip tcp events
C. debug ip bgp transactions
D. debug ip tcp transactions