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<>6. 计算机网络
<>常见面试题
*
<>说说计算机网络有哪两种通信方式?⭐⭐⭐
*
第一种方式:客户-服务器方式。这种传统的方式是互联网上最常见的方式。客户是服务请求方,服务器是服务提供方。
C/S模型有一个特例,那就是B/S
(Browse/Server)模型,即浏览器/服务器模式,也叫B/S结构。它只安装维护一个服务器(Server),而客户端采用浏览器(Browse)运行软件。B/S结构是随着Internet技术的兴起,对C/S结构的变化和改进。它和C/S并没有本质区别。
*
第二种通信方式:**对等连接(P2P)方式。**是指两台主机在通信时并不区分哪一个是服务请求方哪一个是服务提供方。只要两台主机都运行了对等连接软件(P2P软件),他们就可以进行对等连接通信。
*
<>什么是分组交换?优缺点?⭐⭐⭐
分组交换采用存储转发技术,把一个报文划分为几个分组后再进行传送。分组的首部非常重要,包含了目的地址和源地址
等重要控制信息,这样每一个分组才能在互联网中独立地选择传输路径,并被正确地交付到分组传输的终点。
优点:
(1)高效,在分组传输时动态分配带宽