多項選擇題Which can be done to secure the virtual terminal interfaces on a router?()

A.Administratively shut down the interfaces.
B.Physically secure the interfaces.
C.Configure a virtual terminal password and login process.
D.Enter an access list and apply it to the terminal interfaces using the access-class command.
E.Create an access list and apply it to the terminal interfaces using the access-group command.


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1.單項選擇題

Refer to the exhibit. Which statement describes DLCI 17?()

A.DLCI 17 describes the ISDN circuit between R2 and R3.
B.DLCI 17 describes a PVC on R2. It cannot be used on R3 or R1.
C.DLCI 17 is the Layer 2 address used by R2 to describe a PVC to R3.
D.DLCI 17 describes the dial-up circuit from R2 and R3 to the service provider.

2.單項選擇題A cisco router is booting and has just completed the POST process.It is now ready to find and load an IOS image.what function does the router perform next?()

A.It checks the configuration register
B.It attempts to boot from a TFTP server
C.It loads the first image file in flash memory
D.It inspects the configuration file in NVRAM for boot instructions

3.單項選擇題Which item represents the standard IP ACL?()

A.access-list 50 deny 192.168.1.1 0.0.0.255
B.access-list 110 permit ip any any
C.access-list 2500 deny tcp any host 192.168.1.1 eq 22
D.access-list 101 deny tcp any host 192.168.1.1

4.單項選擇題Which command enables IPv6 forwarding on a cisco router?()

A.ipv6 host
B.ipv6 unicast-routing
C.ipv6 local
D.ipv6 neighbor

5.單項選擇題A switch has been configured with two vlans and is connected to a router with a trunk for inter-vlan routing.OSPF has been configured on the router,as the routing protocol for the network.Which statement about thisnetwork is true?()

A.For the two vlans to communicate,a network statement for the trunk interface needs to be added to the  OSPF configuration.
B.For the two vlans to communicate, a network statement for each subinterface needs to be  added  to the OSPF configuration.
C.Direct inter-vlan communication does not require OSPF
D.OSPF cannot be used if router-on-a-stick is configured on the router

6.多項選擇題Which two are features of IPv6?()

A.multicast
B.broadcast
C.allcast
D.podcast
E.anycast

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

A.spanning-tree mode rapid-pvst
B.spanning-tree uplinkfast
C.spanning-tree backbonefast
D.spanning-tree mode mst

8.單項選擇題

Refer to the exhibit.Two routers have just been configured by a new technician. All interfaces are up. However, the routers are not sharing their routing tables. What is the problem?()

A.Split horizon is preventing Router2 from receiving routing information from Router1.
B.Router1 is configured for RIP version 2,and Router2 is configured for RIP version 1.
C.Router1 has an ACL that is blocking RIP version 2.
D.There is a physical connectivity problem between Router1 and Router2.
E.Router1 is using authentication and Router2 is not.

10.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
B.Flash,NVRAM,ROM
C.ROM,NVRAM,TFTP server
D.NVRAM,TFTP server,ROM
E.TFTP server,Flash,NVRAM

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