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@hwk603 2015-09-26T08:40:36.000000Z 字数 1487 阅读 1964

第一次计算机网络随堂测试

计算机网络


一. 简写解释

ISP:互联网服务提供商
FDM:频分多路复用
HFC:混合光纤同轴电缆
RFC:Request For Comments(请求注解)
TDM:时分多路复用
ADSL:非对称数字用户线路
PDU:协议数据单元
NAP:network access point (网络接入点)
ISDN:Integrated Services Digital Network(综合业务数字网)
LAN:局域网


ps.

In networking, PDU means "protocol data unit", and it is the generic
name of the "packets" of data used at different levels of the network.

Using the numbering of the OSI layers:

At layer 2, the PDUs are called "frame". Example: An Ethernet frame, a frame-relay frame.

At layer 3, the PDUs are called "packets". Example: An IP packet.

At layer 4, the PDUs are called "segments". Example: A TCP segment, a UDP segment.


二. 填空

三. 翻译

Protocol: 协议
intranets: 内联网
connection-oriented service: 面向连接服务
Connectionless service: 无连接服务
distributed application: 分布式应用
Flow control: 流量控制
congestion control: 拥塞控制
multiplexing: 多路复用
Circuit switching: 电路交换
packet switching: 分组交换
bandwidth: 带宽
Store-and-forward: 存储转发
statistical multiplexing: 统计多路复用
Virtual circuit network: 虚电路网络
comunication link: 通信链路
Protocol stack: 协议栈
service model: 服务模型

勿点:我不堪入目的答案

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