免费智能真题库 > 历年试卷 > 网络规划设计师 > 2009年下半年 网络规划设计师 上午试卷 综合知识
  第72题      
  章/节:   专业英语       

 
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 (75) ,and admission control. Approaches that have been designed for good quality of service include integrated services (including RSVP), differentiated services,and MPLS.
 
 
  A.  dealing with
 
  B.  routing
 
  C.  sending
 
  D.  receiving
 
 
 

 
  第73题    2018年下半年  
   43%
Anytime a host or a router has an IP datagram to send to another host or router, it has the (71) address of the receiver..
  第71题    2020年下半年  
   77%
Secure Shell (SSH) is a cryptographic network protocol for operating network services securely over an ( 71 ) network, T..
  第75题    2018年下半年  
   51%
Anytime a host or a router has an IP datagram to send to another host or router, it has the (71) address of the receiver..
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