- Cisco IOS命令ip nat inside source static 10.1.1.5 172.35.16.5的作用是什么()下列哪一设备工作时,要用到OSI的七个层(一层到七层)()为所有的外部NAT创建一个全局的地址池
为内部的静态地址创建动态的地址池
它
- 如果网络中的路由器都是cisco路由器,则优先选择哪一个路由协议()路由器上,设置端口速率的命令是()RIP
EIGRP#
IGRP
OSPFclock rate
bandwidth#
set
encapBB
- 通过路由器的“配置端口console”对路由器进行配置,应该使用的线缆为()交叉线缆
直通线缆
反转线缆#
任意线缆C
- 某网络中,拟设计10子网,每个子网中放有14台设备,用IP地址段为199.41.10.X,请问符合此种规划的子网掩码是()下列命令中,无法正确执行的是()255.255.255.0
255.255.240.0
255.255.255.240#
255.248.0.0Router(config)
- In which Spanning-Tree states does a switch port learn MAC addresses? (Select two)Which of the following are types of flow control? (Choose three)Blocking
Listening
Forwarding#
Learning#
RelayingBuffe
- 默认情况下,RIP定期发送路由更新的时间是()15S
30S#
60S
90SB
- RIP路由协议认为“网络不可到达”的跳数是:()Using a subnet mask of 255.255.255.224, which of the IP addresses below can you assign to the hosts on this subnet? (Select all that apply)8
16#
24
10016.23.11
- 地址转换NAT的优点是()TELNET工作在OSI哪一层()地址转换对于报文内容中含有有用的地址信息的情况很难处理
地址转换可以缓解地地址短缺的问题#
地址转换不能处理IP报头加密的情况
地址转换由于隐藏了内部主机地址,
- Which command on router EzonexamA will assign the last usable IP address from the 192.168.32.128/28 subnetwork to a router interface?During the boot sequence, a Ezonexam 2800 series router needs to lo
- IP地址为:192.168.50.70,掩码为:255.255.255.248,则该IP地址所在子网的子网有效IP为()An administrator issues the show ip interface s0/0 command and the output displays that interface Serial0/0 is up, l
- PPP工作在OSI的哪一层()When you compare the differences between half-duplex and full-duplex Ethernet, which of the following characteristics are exclusive to half-duplex? (Select two answer choices)
- 帧中继环境中,在物理端口上,建立子接口的命令是()With regard to Ethernet media access methods, which of the following are true?(Choose all that apply.)create
interface#
encapsulation
ip addressA device
- NAT可以被用于完成多种功能,以下不属于其功能的是:()VLAN主干协议VTP的默认工作模式是()转换内部局部地址
内部全局地址复用
TCP负载均衡
内部网络流量控制#服务器模式#
客户端模式
透明模式
以上三者都不是DA
- 路由器上,清空路由表的命令是()clear ip
delete ip route
delete route
clearip route*#D
- When you compare the differences between half-duplex and full-duplex Ethernet, which of the following characteristics are exclusive to half-duplex? (Select two answer choices)You want to upgrade the E
- 下面对Cisco2621路由器和Cisco2501路由器描述中,错误的是()路由器上,设置端口速率的命令是()Cisco2621路由器的可扩展性优于Cisco2501路由器
Cisco2621是模块化路由器
Cisco2501上提供一个100Mbit/s的快速以太网
- 对于运行OSPF协议的路由器来说,RouterID是路由器的唯一标识,所以协议规定:必须保证RouterID在如下范围之内唯一()。交换机工作在OSI七层模型的哪一层()网段内
区域内
自治系统内#
整个因特网物理层
数据链路层#
网
- NAT可以被用于完成多种功能,以下不属于其功能的是:()在启用IGRP协议时,所需要的参数是:()转换内部局部地址
内部全局地址复用
TCP负载均衡
内部网络流量控制#网络掩码
子网号
自治系统号#
跳数DC
- On a half-duplex Ethernet LAN, two hosts attempt to send data simultaneously, resulting in a collision. Following this collision, what will the hosts do? (Select all valid answers)“ipaccess-group”命令