[单选题]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?
正确答案 :B
Flash, TFTP server, ROM
解析:解析:Explanation:BootinguptheRouter:CiscorouterscanbootCiscoIOSsoftwarefromtheselocations:1.Flashmemory2.TFTPserver3.ROM(notfullCiscoIOS)Multiplesourceoptionsprovideflexibilityandfallbackalternatives.
[单选题]对路由器的描述,正确的是()
正确答案 :C
多广播域,单冲突域的设备
[单选题]某台PC,能ping通路由器,但不能telnet到路由器,可能的原因是()
正确答案 :D
telnet密码未设置
[单选题]在地址转换中,()用来规定哪些数据包需要进行地址转换
正确答案 :B
访问控制列表
[单选题]路由器上“水平分割”的功能是:()
正确答案 :B
阻止路由环路
[单选题]When is a switched network that is running the Spanning Tree Protocol considered to be fully converged?
正确答案 :D
when every operating switch port is in either the blocking or forwarding state
解析:解析:Explanation:
[单选题]100baseT的速率是()Mbit/s
正确答案 :C
100
[单选题]The IP network 210.106.14.0 is subnetted using a /24 mask. How many usable networks and host addresses can be obtained from this?
正确答案 :A
1 network with 254 hosts
解析:解析:Explanation:Asubnetwith24bitsonwouldbe255.255.255.0.SincethisisaclassCnetwork,thissubnetcanhaveonly1networkand254usablehosts.
[单选题]路由器当前的模式为“端口模式”,要退回到“特权模式”,应该使用的快捷键为()
正确答案 :B
ctrl+z
[单选题]“InsideGlobal”地址在NAT配置里表示的是什么()
正确答案 :B
一个注册的地址是表示一个内部的主机到外部网络
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