问题:OSI七层模型中,网络层的数据封装名称为()A.比特B.帧C.包D.段...
Monday, December 16, 2024
问题:一台运行OSPF的路由器,它的两个正常工作的接口一个属于区域0,另一个属于区域9,并且重分布5条静态路由进入OSPF,则该路由器一定会始发哪些LSA()A.Router LSA(Type=1);B.Network LSA(Type=2);C.Network Summary LSA(Type=3);D.ASBR Summary LSA(Type=4);E.ASE xternal LSA(Type=5);...
Saturday, March 11, 2023
问题:命令ip nat pool aaa 192.1.1.2 192.1.1.10 netmask 255.255.255.0的作用是()A.指定可访问地址B.定义地址池C.指定路由D.定义哪些地址可以进行地址转换...
Monday, September 30, 2024
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...
Monday, May 19, 2025
问题:在BPDU中,sys-id-ext字段长多少位?() ...
Tuesday, September 20, 2022
问题:A new switch is installed in the Ezonexam network. This switch is to be configured so that VLAN information will be automatically distributed to all the other Cisco Catalyst switches in the network.Which of the conditions below have to be met in order for...
Sunday, October 6, 2024
问题:以下情况可以使用访问控制列表,描述准确的是()。A.禁止有CIH病毒的文件到我的主机B.禁止黑客访问我的主机C.可以禁止所有使用Telnet的用户访问我的主机D.禁止使用UNIX系统的用户访问我的主机...
Saturday, March 9, 2024
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...
问题:在相距几百英里的路由器之间使用租用线路的点到点WAN链路上,下列哪个设备室DCE设备A.路由器B.CSU/DSUC.电话局中心机房设备D.路由器处理器上的芯片...
Saturday, November 25, 2023
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...
Saturday, March 29, 2025
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...
Friday, July 19, 2024
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...
Thursday, July 31, 2025
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...
Saturday, May 27, 2023
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:要显示由产品ID和路由器序列号组成的唯一设备标识符,可使用哪个命令?() A.show licenseB.show license featureC.show license udiD.show version...
问题:You want to influence the root bridge selection within the Ezonexam LAN. Which two values are used by spanning tree protocol to elect a root bridge? (Choose two.)A. Amount of RAMB. Speed of the linksC. IOS VersionD. MAC AddressE. Bridge PriorityF. IP Addr...
Sunday, December 15, 2024
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...
Friday, June 20, 2025
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:89.56.178和下列PC()属于同一子网。A.210.89.56.173/28B.210.89.56.190/28C.210.89.56.165/28D.210.89.56.130/28...
Sunday, March 10, 2024
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...
Sunday, April 16, 2023