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IP multicasting is a set of technologies
IP multicasting is a set of technologies
admin
2022-08-02
34
问题
IP multicasting is a set of technologies that enable efficient delivery of data to many locations on a network. Rather than making multiple copies of a message intended to be distributed to multiple recipients at the () of origin of a message, multicasting initially sends just one () and does not copy it to the individual recipients until it reaches the closest common point on the network, thereby () the bandwidth consumed. Network performance is significantly () because it isn’t bogged down with the processing and transmission of several large data files; each receiving computer doesn’t have to () the transmitting server for the file.A.droppedB.proveD. C.improveD. D.upgradeD.
选项
A.dropped
B.proveD.
C.improveD.
D.upgradeD.
答案
C
解析
IP多播是允许同时给网络上很多主机提供数据的一种技术。它并不是每次复制很多副本去发送给每一个在这个IP多播组中的接收者,而是最初只发送单一信息,并没有立即复制信息去发给每个接收者,而是直到到达网络中最近的一个共通点时才开始复制,从而最大限度地减少了对带宽的消耗。网络的性能明显得到改善,一是因为它没有立即处理和传输几个大型数据文件;二是接收端计算机不需要查询该传输服务的文件。
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本试题收录于:
初级网络管理员题库软件水平考试初中高级分类
初级网络管理员
软件水平考试初中高级
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