单项选择题

What benefit results from implementation of Layer 3 switching versus Layer 2 switching in a fully meshed campus network？（）

A.ease of IP address assignment versus use of external routers
B.redundancy from trunking between distribution layer switches
C.provides first-hop redundancy to clients
D.allows inter-VLAN communication without requiring complexity of routing protocols

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单项选择题

You work as a network engineer for . You study the exhibit carefully.
What best describes the Cisco IOS IP SLA command and output in the exhibit？（）

A.verifies which operation types have been enabled for IP SLA source
B.verifies which operation types have been enabled for IP SLA responder
C.verifies which operation types are supported in software
D.verifies enabled operation types that are not running

单项选择题

You work as a network engineer for. You study the exhibit carefully. Which of these is true based upon the output shown in the command？（）
Exhibit：

A.The port has security enabled and has shut down due to a security violation.
B.The port is operational and has reached its configured maximum allowed number of MAC addresses.
C.The port will allow access for 11 MAC addresses in addition to the 3 configured MAC addresses.
D.If the number of devices attempting to access the port exceeds 11， the port will shut down for 20 minutes， as configured.

单项选择题

Which of these is true regarding the configuration and application of port access control lists？（）

A.PACLs can be applied in the inbound or outbound direction of a Layer 2 physical interface.
B.At Layer 2， a MAC address PACL will take precedence over any existing Layer 3 PACL.
C.When you apply a port ACL to a trunk port， the ACL filters traffic on all VLANs present on the trunk port.
D.PACLs are not supported on EtherChannel interfaces.