全名和例子如下:
System Area Network(系统域网):主机及外设
Local Area Network(局域网):以太网
Metropolitan Area Network(城域网):WiMax
Wide Area Network(广域网):因特网,X.25
来道题:
Which networking technique is often used in a laboratory?
A. SAN B. LAN
C. MAN D. WAN
选B:小范围一般采用局域网(LAN)建立网络,安装简单,价格便宜。