[单选题]下面对Cisco2621路由器和Cisco2501路由器描述中，错误的是（）

正确答案 ：C

Cisco2501上提供一个100Mbit/s的快速以太网端口

[单选题]You are a systems administrator and you are about to assign static IP addresses to various servers on your network. For the network 192.168.20.24/29 the router is assigned to the first usable host address, while the last usable host address goes to your Sales server. Which one of the following commands would you enter into the IP properties box of the sales server?

正确答案 ：C

IP address: 192.168.20.30 Subnet Mask 255.255.255.248 Default Gateway: 192.168.20.25

解析：解析：ExplanationAsubnetmaskuses29bits.Thismeansthatituses5bitsinthe4thoctet.Thisequatesto255.255.255.248.Thisnetworkhas3bitsforhosts.Usingthe2n-2formula(23-2)inthiscase),weareleftwith6(2*2*2-2=6)hostaddresses.192.168.20.24isthenetworkaddress.Thereforethenextaddress(192.168.20.25)wouldbethefirsthostaddress.Thisaddressmustbeassignedtotherouter,whichservesasthegatewayforthenetwork.Thelastavailablehostaddresswouldbe192.168.20.30(192.168.20.24+6).Thisaddressisassignedtotheserver.Thebroadcastaddressis192.168.20.31.

[单选题]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)

正确答案 ：C

The hosts will attempt to resume transmission after a time delay has expired.

解析：C 解析：Explanation:

[单选题]RIP协议负载均衡的路径数量为（）

正确答案 ：D

最多6条

[单选题]对于使用链路状态路由协议的路由器如何选择最佳路线到达子网，下列哪项是正确的（）

正确答案 ：B

通过针对链路状态数据库中的信息运行SPF算法，路由器会计算出最佳路由

查看原题