A.A level 5 password is not set
B.The vty password is missing
C.The console password is missing
D.An ACL is blocking Telnet access
您可能感興趣的試卷
你可能感興趣的試題
A.172.31.17.4/30
B.172.31.51.16/30
C.172.31.64.0/18
D.172.31.80.0/22
E.172.31.92.0/22
F.172.31.192.0/18
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.
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.
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.
最新試題
請(qǐng)參見圖示。主機(jī)A 正在訪問(wèn)多臺(tái)服務(wù)器。結(jié)合使用什么端口號(hào)和地址即可唯一識(shí)別特定服務(wù)器上運(yùn)行的特定進(jìn)程？（）
在Cisco IOS 設(shè)備中，啟動(dòng)配置文件存儲(chǔ)于何處？（）
請(qǐng)參見圖示。已啟用路由器的NAT 功能供PC 訪問(wèn)Internet?？梢詾槁酚善鹘涌赟0/0/0分配下列哪一個(gè)IP 地址？（）
請(qǐng)參見圖示。從主機(jī)X 發(fā)出的到主機(jī)Y 的tracert 命令已成功。下列哪一項(xiàng)正確地反映了追蹤列表中顯示的中間網(wǎng)絡(luò)設(shè)備的順序？（）
要將數(shù)據(jù)包發(fā)送到遠(yuǎn)程網(wǎng)絡(luò)，應(yīng)使用哪種設(shè)備？（）
請(qǐng)參見圖示。主機(jī)A 和B 無(wú)法互相通信。此問(wèn)題的原因是什么？（）
請(qǐng)參見圖示。網(wǎng)絡(luò)中的所有設(shè)備均使用默認(rèn)配置。此拓?fù)渲行枰嗌賯€(gè)邏輯地址范圍？（）
請(qǐng)參見圖示。在網(wǎng)絡(luò)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(yīng)用程序？（）
請(qǐng)參見圖示。主機(jī)X 和主機(jī)Y 與本地網(wǎng)絡(luò)的通信受到限制。此問(wèn)題的原因是什么？（）
請(qǐng)參見圖示。網(wǎng)絡(luò)技術(shù)人員試圖確定主機(jī)A 的正確IP 地址配置。以下哪一項(xiàng)是主機(jī)A 的有效配置？（）