Which of the following pieces of information will the command show interface provide？（Choose allthat apply.）（）

单项选择题Whichofthefollowingcommandswilldisplayarouter’scryptomapIPsecsecurityassociationsettings？（）

A.show crypto map ipsec sa
B.show crypto map
C.show crypto engine connections active
D.show ipsec crypto map
E.show crypto map sa
F.show ipsec crypto map sa

单项选择题Whichofthefollowingisnotacharacteristicoffastswitching？（）

A.Fast switching reducesa routers CPU utilization， compared to process switching
B.All packets of a flow， except for the first packet， use the information in the fast cache
C.It can be enabled with the interface command ip route-cache
D.Fast switching uses a fast cache maintained in a router’s control plane
E.The fast cache contains information about how traffic from different data flows should beforwarded
F.Even though the fast switching is enabled， the first packet of a flow is still process switched

单项选择题Whichofthefollowingcommandswillrestoreapreviouslyarchivedconfigurationbyreplacingtherunningconfigurationwiththearchivedconfiguration？（）

A.configure archive running-config
B.configure replace
C.copy archive running config
D.copy startup-config running-config
E.copy tftp running-config
F.configure tftp running-config

单项选择题Inwhatsituationwouldthecommandiphelper-addressberequired？（Choosethebestanswer.）（）

A.Only when there is a duplicate IP address caused by a combination of static and dynamic IPaddress allocations
B.On each router that exists between the client and the server
C.Only when a router separates the client from the server
D.Only if the DHCP sever issues a DHCPNAK to the initial request
E.Only when the client is on the same subnet as the server
F.Only when the DHCP pool is out of IP addresses

多项选择题Whichofthefollowingstatementsaretrueconcerningthecommandipslamonitorrespondertypetcpconnectipaddress10.1.1.1port23？（Chooseallthatapply.）（）

A.The command will initiate a probe with a destination IP address of 10.1.1.1
B.The command is used on the IP SLA responder and the IP SLA source
C.The command will allow only source address 10.1.1.1 to source probes
D.The command will initiate a probe with a destination Telnet port
E.The command is used to make the router a responder
F.The command will initiate a probe with a source port of 23