当前分类: 思科认证
问题:As a network administrator, you will need to decide on the appropriate network devices to use. Which of the following correctly describes the roles of devices in a WAN? (Choose three)A. A CSU/DSU terminates a digital local loop.B. A router is commonly con...
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问题:目前最常用的广域网接入方式是()A.E1专线接入B.ISDN拨号C.FR接入D.VPN方式...
问题:Which line from the output of the show ip interface command indicates that there is a Layer 1 problem?A.Serial0/1 is up, line protocol is downB.Serial0/1 is down, line protocol is downC.Serial0/1 is up, line protocol is upD.Serial0/1 is administratively d...
问题:哪个命令用于在ISR2路由器上安装永久性许可证?() A.install licenseB.license installC.boot system licenseD.boot license module...
问题:下列哪项对OSI第1层协议主要功能的描述最准确()A.成帧B.将比特从一台设备传递到另一台设备C.编址D.DLCI...
问题:配置寄存器设置0x2102给路由器提供了哪种功能?() A.让路由器进入ROM监视器模式B.提供了密码恢复功能C.让路由器在NVRAM中查找boot命令D.从TFTP服务器加载IOSE.加载存储在ROM中的IOS映像...
问题:缺省路由是最后一条被使用的特殊的静态路由。此题为判断题(对,错)。...
问题:思科为何要开发专用的STP和RSTP扩展PVST+?() A.通过优化根网桥的配置,提高会聚速度、优化数据流传输路径B.通过优化非根网桥的配置,提高会聚速度、优化数据流传输路径C.PVST+使得能够更迅速地丢弃非IP帧D.PVST+实际上是IEEE标准 802.1w...
问题:网络管理员想升级路由器的IOS,但又不希望当前安装的映像被删除。因此,他需要查看当前IOS映像占用的闪存空间,并确定闪存是否有足够的空间同时存储当前映像和新映像。为此,他可使用哪个命令?() A.show versionB.show flashC.show memoryD.show buffersE.show running-config...
问题:You are a senior network administrator at Ezonexam, and while performing the password recovery procedure on your 2500 series Cisco router, you type in the following command:o/r 0x2142What is the purpose of this command?A.It is used to restart the router.B...
问题:A new switch is being installed in the Ezonexam network and you have been assigned the task of connecting it to an existing switch. In doing this, you want to set up the VLAN Trunking Protocol so that VLAN information can be passed between the switches. W...
问题:哪个命令用于将IOS备份到网络中的TFTP服务器?() A.transfer IOS t0 172.16.10.1B.copy run startC.copy tftp flashD.copy start tftpE.copy flash tftp...
问题:BPDU防护有何用途?() A.确保端口从正确的上游交换机那里收到了BPDUB.禁止端口接收来自上游交换机的BPDU,而只接收来自根交换机的BPDUC.可在启用了BPDU防护的端口上使用PortFast,在端口收到BPDU时将其关闭D.在端口收到BPDU时将其关闭...
问题:对于以下NAT语句描述正确的是()A.只对192.168.10.0/24的网段的地址进行转换B.NAT中的静态转换语句与PAT有冲突C.68.10.14.2是外部全局地址D.F0/1是外部接口,F0/0是内部接口...
问题:你在路由器上执行如下命令并重启路由器,路由器将如何做?Router(config)#boot system flash c2800nm-advsecurityk9-mz.151-4.M6.bin Router(config)#config-register 0x2101 Router(config)#do sh ver[outputcut]Configuration register is 0x2102(will be Ox2101 at next reload)()A.路由器将解压缩并运行闪存中的IOS...
问题:要在交换机上运行802.1w,可使用哪个命令来启用该协议?() A.Switch(config)#spanning-tree mode rapid-pvstB.Switch#spanning-tree mode rapid-pvstC.Switch(config)#spanning-tree mode 802.1wD.Switch#spanning-tree mode 802.1w...
问题:你使用命令copy running-config startup-config保存路由器的配置,并重启路由器,但路由器启动后没有任何运行配置。请问可能出现了什么问题?() A.启动路由器时使用的命令不对B.NVRAM受损C.配置寄存器的设置不正确D.新升级到的IOS与路由器硬件不兼容E.保存的配置与硬件不兼容...
问题:在BPDU中,sys-id-ext字段长多少位?() A.4位B.8位C.12位D.16位...
问题:What is the subnet for the host IP address 172.16.210.0/22?A. 172.16.42.0B. 172.16.107.0C. 172.16.208.0D. 172.16.252.0E. 172.16.254.0F. None of the above...
问题:要将许可证复制到闪存,可使用哪个命令?() A.copy tftp flashB.save license flashC.license save flashD.copy license flash...