[单选题]在OSPF的DR/BDR选举过程中,在路由器有相同的接口优先级情况下,什么用于确定DR或BDR()
正确答案 :D
路由器ID
[单选题]哪个命令可以成功测试网络:()
正确答案 :B
Routerping192.5.5.30
[单选题]IP扩展访问列表的数字标示范围是多少()。
正确答案 :C
100-199
[单选题]把指定端口添加到VLAN的命令是:()
正确答案 :D
switch port
[多选题]对于IP为199.41.27.0,子网掩码为255.255.255.240,则该IP地址和子网掩码相作用会得到一系列IP,从下列选项中选出属于“有效IP”的选项:()
正确答案 :ABCD
199.141.27.33
199.141.27.112
199.141.27.119
199.141.27.126
解析:ABCD
[单选题]以下特殊区域中哪一个没有自动下发缺省路由()
正确答案 :D
完全NSSA区域
[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.
[多选题]What are two characteristics of "store and forward" switching? (Select two answer choices)
正确答案 :BC
The switch receives the complete frame. before beginning to forward it.
Latency through the switch varies with frame. length.
解析:解析:Explanation:
[单选题]关于帧中继的说法,正确的是()
正确答案 :C
可以偷占带宽
[单选题]路由器下,由一般用户模式进入特权用户模式的命令是:()
正确答案 :A
enable
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