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绪论 单元测试
1、
本课程采用“自顶向下”的方式讲解计算机网络原理。
A:对
B:错
答案: 对
第一章 单元测试
1、
The web server is not an end system?
A:错
B:对
答案: 错
2、
The upper layers of the OSI model are ( )in correct order.
A:Session,presentation,application
B:Session,application,presentation
C:Application,presentation,session
D:Session,application,presentation,physical
答案: Session,presentation,application
3、
The lower layers of the OSI model are ( )in correct order.
A:physical,transport,network,data link
B:physical,system,network,logical
C:physical,data link,network,transport
D:physical,logical,system,network
答案: physical,data link,network,transport
4、
The Internet Protocol (IP) generally corresponds to which OSI layer?
A:Session(layer five)
B:Network(layer three)
C:Transport(layer four)
D:Data link(layer two)
答案: Network(layer three)
5、
Which of these network devices primarily functions at the OSI Network layer(layer 3)?
A:All of the above
B:Router
C:Gateway
D:Switch
答案: Router
第二章 单元测试
1、
TCP is an application layer protocol.
A:错
B:对
答案: 错
2、
Which is not an application layer protocol? ( )
A:DNS
B:FTP
C:HTTP
D:ARP
答案: ARP
3、
The only architecture of applications is peer-to-peer.
A:对
B:错
答案: 错
4、
In the client-server architecture, the clients is not always on.
A:错
B:对
答案: 对
5、
Mail server port number is ( )
A:25
B:81
C:403
D:80
答案: 25
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