2. 计算机
  3. The diffserv approach to providing QoS in networks employs a small，well-defined set of building blocks from which you can build

The diffserv approach to providing QoS in networks employs a small，well-defined set of building blocks from which you can build

admin2017-11-28  29
问题     The diffserv approach to providing QoS in networks employs a small，well-defined set of building blocks from which you can build a variety of(71)．Its aim is to define the differentiated services(DS)byte，the Type of Service(ToS)byte from the Internet Protocol Version 4(72)and the Traffic Class byte from IP Version 6，and mark the standardized DS byte of the packet such that it receives a particular forwarding treatment，or per-hop behavior(PHB)，at each network node．The diffserv architecture provides a(73)within which service providers can offer customers a range of network services，each differentiated based on performance．A customer can choose the(74)level needed on a packet-by- packet basis by simply marking the packet’s Differentiated Services Code Point(DSCP)field to a specific value．This(75)specifies the PHB given to the packet within the service provider network．
(72)
选项 A、message
B、packet
C、header
D、package
答案C
解析
转载请注明原文地址:https://kaotiyun.com/show/3CQZ777K
本试题收录于： 网络规划设计师上午综合知识考试题库软考高级分类
0

网络规划设计师上午综合知识考试

软考高级

相关试题推荐
随机试题
最新回复(0)