【导读】
不凡考网发布2021计算机思科认证网络工程师每日一练冲刺练习(06月03日)相关信息,更多2021计算机思科认证网络工程师每日一练冲刺练习(06月03日)的相关资讯请访问不凡考网计算机类考试频道。
1. [单选题]A receiving host has failed to receive all of the segments that it should acknowledge.What can the host do to improve the reliability of this communication session?
A. Start a new session using UDP
B. Obtain a new IP address from the DHCP server
C. Use a different source port for the session
D. Decrease the sequence number
E. Decrease the window size
2. [单选题]What kind of cable should be used to establish a trunked line between two Catalyst switches?
A. A straight-through cable
B. An EIA/TIA-232 serial cable
C. An auxiliary cable
D. A modem cable
E. A cross-over cable
3. [单选题]下列关于路由器和交换机的描述中,错误的是()
A. 路由器可以用来连接internet
B. 二层交换机可以用来实现“异地网络”互连
C. 路由器可以用来做路径选择
D. 交换机可以转发广播
4. [单选题]配置路由器时,封装PPP协议的命令是:()
A. encap ppp
B. ppp
C. group ppp
D. int ppp
5. [单选题]为了阻止交换机环路,交换机上所采用的技术为()
A. 水平分割
B. 生成树协议
C. 触发更新
D. 地址学习