單項選擇題Which statement about access lists that are applied to an interface is true?()

A. you can apply multiple access lists with the same protocol or in different direction.
B. you can config one access list,per direction,per layer 3 protocol
C. you can place as many access lists as you want on any interface
D. you can apply only one access list on any interface


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1.單項選擇題Which command enables RSTP on a switch?()

A. spanning-tree mode rapid-pvst
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D. spanning-tree mode mst

2.單項選擇題DNS servers provide what service?()

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3.單項選擇題There are no boot system commands in a router configuration in NVRAM.What is the fallback sequence that router will use to find an ios during reload?()

A. Flash,TFTP server,ROM
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4.單項選擇題Which command shows your active Telnet connections?()

A. show session
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5.單項選擇題Which commands is necessary to permit SSH or Telnet access to a cisco switch that is otherwise configured for these vty line protocols?()

A. transport type all
B. transport output all
C. transport preferred all
D. transport input all

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Which pairing reflects a correct protocol-and-metric relationship?()

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Which statement describes the rule of split horizon?()

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Which protocol reduces administrative overhead in a switched network by allowing the configuration of a new VLAN to be distributed to all the switches in a domain?()

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The network administrator cannot to switch 1 over a telnet session,although the hosts attached to switch 1 can ping the interface Fa0/0 of the router.Given the information in the graphic and assuming that the router and switch2 are configured properly,which of the following commands should be issued on switch 1 to correct this problem?()

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Three switches are connected to one anther via trunk ports.Assuming the default switch configuration,which switch is elected as the root bridge for the spanning-tree instance of vlan 1?()

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Which cisco ios command can help to determine the timing of various debug events,relative to each other,when you are debugging a complicated router issue?()

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Which command encrypts all plaintext passwords?()

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Which encapsulation type is a Frame Relay encapsulation type that is supported by Cisco routers?()

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When you are troubleshooting an ACL issue on a router,which command can help you to verify which interfaces are affected by the ACL?()

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After the show ip route command has been entered,the follwing routes are displayed.Which route will not be entered into the routing table of a neighboring router?()

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