问题:路由表中的直接路由(Direct)可能有以下几种来源()A.本路由器自身接口的主机路由B.本路由器自身接口所在的网段路由C.与本路由器直连的对端路由器的接口的主机路由D.缺省路由
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问题:以下哪一项不是有关虚电路交换方式的正确描述。()A.分组需要包含虚电路标识符B.某条虚电路对应的转发项只给出该虚电路经过的两个端口之间的关联C.虚电路标识符用于建立终端间传输路径与终端间传输的数据之间的绑定D.虚电路是指终端间传输路径
问题:当外发接口不可用时,路由表中的静态路由条目中该路由将保持在路由表中,因为它是静态路由。此题为判断题(对,错)。
问题:请参见图示。公司的新安全策略允许来自工程部LAN的所有IP流量访问Internet,但对于来自营销部LAN的流量,则只允许其中的web流量访问Internet。为实施新的安全策略,可在营销部路由器的Serial0/1接口的出站方向上应用哪一ACL()A.access-list 197 permit ip 192.0.2.0 0.0.0.255 any access-list 197 permit ip 198.18.112.0 0.0.0.255 any eq wwwB.access-list 165 permit ip 192.0.2.0 0.0.0.255 any access-list 165 permit tcp 198.18.112.0 0.0.0.255 any eq www access-list 165 permit ip any anyC.access-list 137 permit ip 192.0.2.0 0.0.0.255 any access-list 137 permit tcp 198.18.112.0 0.0.0.255 any eq wwwD.access-list 89 permit 192.0.2.0 0.0.0.255 any access-list 89 permit tcp 198.18.112.0 0.0.0.255 any eq www
问题:During the boot sequence, a Ezonexam 2800 series router needs to locate and load an operating system. What is the default order the router uses to find an operating system?A.ROM, TFTP server, FlashB.Flash, TFTP server, ROMC.Flash, NVRAM, TFTP serverD.Flash, ROM, TFTP serverE.Flash, TFTP server, RAM
问题:The Ezonexam network administrator needs to a switch named VE1 to become the root bridge for a redundant path switched network. What can be done to ensure that VE1 will always assume the role as the root bridge?A.Assign the switch a higher MAC address than the other switches in the network haveB.Establish a direct link from the switch to all other switches in the networkC.Configure the switch full-duplex operation and configure the other switches for half-duplex operationD.Configure the switch so that it has lower priority than other switches in the networkE.None of the above
问题:The network security policy for Ezonexam requires that only one host be permitted to attach dynamically to each switch interface. If that policy is violated, the interface should be automatically disabled. Which two commands must the Ezonexam network administrator configure on the 2950 Catalyst switch to meet this policy? (Choose two)A.SWEzonexam1(config-if)# switchport port-security maximum 1B.SWEzonexam1(config)# mac-address-table secureC.SWEzonexam1(config)# access-list 10 permit ip hostD.SWEzonexam1(config-if)# switchport port-security violation shutdownE.SWEzonexam1(config-if)# ip access-group 10
问题:配置LACP时,在要使用的接口上必须将哪三个参数配置得完全相同?()A.虚拟MAC地址B.端口速度C.双工模式D.PortFastE.VLAN信息
问题:You are given a PC, a router, and a cable. Select the correct combination that will allow you to log into router VE1 locally using a terminal emulation program such as HyperTerminal.A. Connect the PC's COM port to the router's console port using a straight-through cable.B. Connect the PC's COM port to the router's console port using a rollover cable.C. Connect the PC's COM port to the router's Ethernet port using a straight-through cable.D. Connect the PC's Ethernet port to the router's Ethernet port using a rollover cable.E. Connect the PC's Ethernet port to the router's Ethernet port using a straight- through cable.F. None of the above
问题:要启用LACP,可将EtherChannel模式设置为下面哪两种之一?()A.OnB.PreventC.PassiveD.AutoE.ActiveF.Desirable
问题:要启用LACP并将交换机端口加入端口信道1,可使用下面哪两个命令之一?()A.Switch(config)#interface port-channel1B.Switch(config)#channel-group 1 mode activeC.Switch#interface port-channel 1D.Switch(config-if)#channel-group 1 mode active
问题:When comparing and contrasting the similarities and differences between bridges and switches, which of the following are valid statements? Choose all the valid answer choices)A. Bridges are faster than switches because they have fewer ports.B. A switch is a multiport bridge,C. Bridges and switches learn MAC addresses by examining the source MAC address of each frame. received.D. A bridge will forward a broadcast but a switch will not.E. Bridges and switches increase the size of a collision domain.F. None of the above statements are true.
问题:把指定端口添加到VLAN的命令是:()A.vlanB.vlan-member shipC.vtpD.switch port
问题:Ezonexam has a Class C network and you need ten subnets. You wish to have as many addresses available for hosts as possible. Which one of the following subnet masks should you use?A.255.255.255.192B.255.255.255.224C.255.255.255.240D.255.255.255.248E.None of the above
问题:OSPF骨干区域存在()类LSA。A.一类B.二类C.三类D.四类E.五类F.七类
问题:Barney是子网10.1.1.0/24中一个具有IP地址10.1.1.1的主机。以下哪些操作时标准IPACL可配置来执行的()A.匹配准确的源IP地址B.使用一个access-list命令匹配IP地址10.1.1.1到10.1.1.4,而不匹配其他IP地址C.使用一个access-list命令匹配Barney的子网中的所有IP地址,而不匹配其他IP地址D.仅匹配包的目标IP地址
问题:Which of the following are true of Ethernet technology?A.Hosts use a logical ring topology.B.Hosts use a logical bus topologyC.Hosts must wait for an electronic signal to transfer data.D.Hosts are directly connected to a wiring concentrator called a MSAU.E.None of the above
问题:In which Spanning-Tree states does a switch port learn MAC addresses? (Select two)A.BlockingB.ListeningC.ForwardingD.LearningE.Relaying
问题:Which one of the following characteristics is true regarding the use of hubs and switches?A.Hubs can have their ports be configured with VLANsB.Using hubs is costly with regard to bandwidth availability.C.Switches can not forward broadcasts.D.Switches are more efficient than hubs in processing frames.E.Switches increase the number of collision domains in the network.
问题:在OSPF的DR/BDR选举过程中,在路由器有相同的接口优先级情况下,什么用于确定DR或BDR()A.最高的OSPF进程IDB.最低的接口IP地址C.最低的接口开销D.路由器ID