问题：Why is full-duplex Ethernet superior to its single-duplex counterpart? (Select two answer choices.)A．It uses inexpensive hubsB．It operates without collisionsC．It operates on switchesD．It provides faster data transferE．It utilizes fewer wiring pairs
查看答案
问题：以下（）两个机制用于在距离矢量的路由协议中避免环路。A.水平分割B.路由毒化C.划分区域D.链路状态宣告
问题：OSPF在同一区域内，下列说法正确的是（）A.每台路由器生成的LSA都是相同的B.每台路由器的LSDB(链路状态数据库)都是相同的C.每台路由器根据该LSDB计算出的最短路径树都是相同的D.每台路由器根据该最短路径树计算出的路由都是相同的
问题：在一个C类地址网段要划分出32个子网，下面那个子网掩码最适合（）A.255.255.255.252B.255.255.255.248C.255.255.255.240D.255.255.255.255
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：You need to decide on which trunking method to implement in the Ezonexam network. What is a characteristic of ISL and 802.1q frame. tagging in a switched LAN environment?A．They are used to find the best path through a network.B．They allow the exchange of filtering tables.C．They specify different implementations of the Spanning-Tree Protocol.D．They allow the exchange of routing tablesE．They provide inter-switch VLAN communication.
问题：You are bringing up a new Ezonexam switch, and wish to connect it via a trunk to another switch from a different vendor, which uses the IEEE standard for the trunking method. When setting the encapsulation type on the trunk, what should you configure on the Cisco switch?A．Switch(config)# switchport trunk encapsulation islB．Switch(config)# switchport trunk encapsulation ietfC．Switch(config-if)# switchport trunk encapsulation islD．Switch(config-if)# switchport trunk encapsulation ietfE．Switch(config-if)# switchport trunk encapsulation dot1q
问题：关于静态NAT，下面（）说法是正确的。A.静态NAT转换在缺省情况下24小时后超时B.静态NAT转换从地址池中分配C.静态NAT将内部地址一对一静态映射到内部全局地址D.CISCO路由器缺省使用了静态NAT
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：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：After working on a router, some problems arise and you wish to view the commands that you recently entered. Which IOS command opens the history buffer and displays the most recently entered commands?A. Show historyB. Show buffersC. Show typed commandsD. Show terminal bufferE. Show commandF. 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：路由器上，清空路由表的命令是（）A.clear ipB.delete ip routeC.delete routeD.clearip route*
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：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：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：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：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：子网172.16.0.0/22有（）个可用的IP地址A.1022B.1024C.256D.254
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
