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  3. The network layer provides services to t

The network layer provides services to t

题库2022-08-02  122
问题 The network layer provides services to the transport layer. It can be based on either (71) . In both cases, its main job is (72) packets from the source to the destination.In network layer, subnets can easily become congested，increasing the delay and (73) for packets. Network designers attempt to avoid congestion by proper design. Techniques include (74) policy, caching, flow control, and more.The next step beyond just dealing with congestion is to actually try to achieve a promised quality of service. The methods that can be used for this include buffering at the client, traffic shaping, resource (请作答此空) ，and admission control. Approaches that have been designed for good quality of service include integrated services (including RSVP), differentiated services，and MPLS.A.distributionB.guaranteeC.schemeD.reservation
选项
答案 D
解析
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本试题收录于： 中级 网络工程师题库软件水平考试初中高级分类

中级 网络工程师

软件水平考试初中高级

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