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第73题      2017年下半年 网络规划设计师 上午试卷 综合知识
所属知识点   专业英语       

 
Typically,an IP address refers to an individual host on a particular network. IP also accommodates addresses that refer to a group of hosts on one or more networks.Such addresses are referred to as multicast addresses,and the act of sending a packet from a source to the members of a (71)group is referred to as multicasting. Multicasting done (72 ) the scope of a single LAN segment is straightforward. IEEE 802 and other LAN protocols include provision for MAC-level multicast addresses. A packet with a multicast address is transmitted on a LAN segment.Those stations that are members of the (73)multicast group recognize the multicast address and (74)the packet.In this case,only a single copy of the packet is ever transmitted.This technique works because of the (75)nature of a LAN:A transmission from any one station is received by all other stations on the LAN.
 
 
  A.  different
 
  B.  unique
 
  C.  special
 
  D.  corresponding
 
 
 

  专业英语 知识点 更多相关真题:    更多>  
 
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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 differ..
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Typically,an IP address refers to an individual host on a particular network. IP also accommodates addresses that refer to a group of hosts on one or more networks.Such addresses ..
  第75题    2009年下半年  
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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.
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↓第73题