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.
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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
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
A.ipv6 host
B.ipv6 unicast-routing
C.ipv6 local
D.ipv6 neighbor
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
A.multicast
B.broadcast
C.allcast
D.podcast
E.anycast
A.spanning-tree mode rapid-pvst
B.spanning-tree uplinkfast
C.spanning-tree backbonefast
D.spanning-tree mode mst
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.
A.255.255.255.240
B.255.255.255.254
C.255.255.255.252
D.255.255.255.0
E.255.255.255.248
A.Flash,TFTP server,ROM
B.Flash,NVRAM,ROM
C.ROM,NVRAM,TFTP server
D.NVRAM,TFTP server,ROM
E.TFTP server,Flash,NVRAM
A.Cisco安全管理器
B.Cisco IOS軟件
C.Cisco安全代理
D.MARS
最新試題
請參見圖示。主機A 嘗試與主機C 建立TCP/IP 會話。在嘗試期間,路由器Y 的FastEthernet 接口fa0/1捕獲到一個幀。捕獲的幀中包含源IP 地址為172.16.1.5而目的IP 地址為172.16.7.24的數(shù)據(jù)包。捕獲該幀時,它的源MAC 地址是什么?()
請參見圖示。主機A 和B 無法互相通信。此問題的原因是什么?()
路由器使用哪一項信息來確定源主機和目的主機之間的路徑?()
請參見圖示。對于從主機A 向Web 服務器發(fā)出的網(wǎng)頁請求,正確的目的套接字數(shù)字是什么?()
請參見圖示。在網(wǎng)絡中,PC1向PC2發(fā)送了一條消息。PC2收到的幀如圖所示。該幀中的哪一信息確定了正確的目的應用程序?()
OSI 哪一層可提供有序的數(shù)據(jù)重構服務?()
請參見圖示。公司路由器由于故障被更換。更換路由器之后,Education 辦公室內的主機C 和D 能夠相互ping 通,但是無法訪問Accounts 辦公室內的主機。此問題的原因可能是什么?()
請參見圖示。從主機X 發(fā)出的到主機Y 的tracert 命令已成功。下列哪一項正確地反映了追蹤列表中顯示的中間網(wǎng)絡設備的順序?()
請參見圖示。一臺主機正使用NAT 連接到Internet。下列哪三項IP 地址可實現(xiàn)此連接?()
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