问题:下面是你在一台交换机上执行命令show spanning-tree时得到的输出:请问下面哪两种有关这台交换机的说法是正确的?()A.这台交换机是根网桥B.这台交换机不是根网桥C.根网桥与这台交换机之间有4台交换机D.这台交换机运行的是802.1wE.这台交换机运行的是STP PVST+
查看答案
问题:要获悉当前交换机是哪些VLAN的根网桥,可使用下面哪两个命令?()A.show spanning-treeB.show root allC.show spann-ing-tree port root VLAND.show spanning-tree summary
问题:要确保交换机成为VLAN30的根网桥,可使用下面哪两个命令之一?()A.spanning-tree vlan 30 priority 0B.spanning-tree vlan 30 priority 16384C.spanning-tree vlan 30 root guaranteeD.spanning-tree vlan 30 root primary
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:在一个路由表中,有指向192.168.1.0/24的RIP路由下一跳为1.1.1.1,也有手动配置的静态路由192.168.0.0/16下一跳为2.2.2.2,当有目的地址为192.168.1.1的数据包到达时,路由器会将该数据包转发到2.2.2.2,是否正确。此题为判断题(对,错)。
问题:你将一台笔记本电脑直接连接到了路由器的以太网端口。为确保命令copy flash tftp成功地完成其任务,需要满足哪三个条件?()A.必须在路由器上运行TFTP服务器软件B.必须在笔记本电脑上运行TFTP服务器软件C.将笔记本电脑直接连接到路由器以太网端口的以太网电缆必须是直通电缆D.笔记本电脑与路由器以太网接口必须位于同一个子网E.必须给命令copy flash tftp提供笔记本电脑的IP地址F.路由器闪存必须有足够的空间,能够存储要复制的文件
问题:Cisco is the leader in the router market space. What basic functions do their routers perform. in a network? (Choose two)A. The microsegmentation of broadcast domainsB. Path selectionC. Packet switchingD. Bridging between LAN segmentsE. Access layer securityF. VLAN membership assignmentG. Application optimization
问题:要启用PAgP,可使用下面哪两种EtherChannel模式?()A.OnB.PreventC.PassiveD.AutoE.ActiveF.Desirable
问题:若将一条静态路由加入到路由器的IP路由表中,下列哪些说法是正确的(0A.和路由想关联的输出接口必须处于“upandup”状态B.路由器必须从相邻路由器接收到一个路由选择更新C.在配置中必须添加iproute命令D.输出接口的ip address命令必须使用special关键字
问题:From where does a small network typically get its IP network addresses or IP block?A.From the Internet Domain Name Registry (IDNR)B.From the Internet Assigned Numbers Authority (IANA)C.From the Internet Service Provider (ISP)D.From the Internet Architecture Board (IAB)E.None of the above
问题:802.1d定义了哪些端口状态?()A.阻断B.丢弃C.侦听D.学习E.转发F.替代
问题:将路由器的许可证删除包括哪两步?()A.使用命令erase flash:licenseB.重启系统C.使用命令license boot,并在末尾指定关键字disableD.使用命令license clear将许可证清除
问题:The corporate head office of Ezonexam has a teleconferencing system that uses VOIP (voice over IP) technology. This system uses UDP as the transport for the data transmissions. If these UDP datagrams arrive at their destination out of sequence, what will happen?A.UDP will send an ICMP Information Request to the source host.B.UDP will pass the information in the datagrams up to the next OSI layer in the order that they arrive.C.UDP will drop the datagrams.D.UDP will use the sequence numbers in the datagram headers to reassemble the data in the correct order.E.UDP will not acknowledge the datagrams and wait for a retransmission of the datagrams.
问题:哪个命令显示有关当前IOS版本的各种信息,包括许可细节(位于输出末尾)?()A.show licenseB.show license featureC.snow license udiD.show version
问题:STP定义了哪些端口角色?()A.阻断端口B.丢弃端口C.根端口D.非指定端口E.转发端口F.指定端口
问题:下面哪三种有关RSTP的说法是正确的?()A.第2层网络拓扑发生变化时,需要重新计算生成树,而RSTP提高了这种计算的速度B.RSTP是一种IEEE标准,重新定义了STP端口角色、端口状态和BPDUC.RSTP极具前瞻性且反应迅速,因此绝对需要802.1d的延迟定时器D.RSTP( 802.1w)优于802.1d,但依然是专用的E.RSTP修改了所有802.1d术语和大部分参数F.为支持传统交换机,可在每个端口上进行配置,让802.1w退化为802.1d
问题:如果一个内部网络对外的出口只有一个,那么最好配置()A.缺省路由B.主机路由C.动态路由D.静态路由
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 down, line protocol is downE.None of the above
问题:两台路由器直连到一起,应该使用的线缆为()A.交叉线缆B.直通线缆C.反转线缆D.任意线缆
问题:介质100BaseT的最大传输距离是:()A.10mB.100mC.1000mD.500m