免费智能真题库 > 历年试卷 > 网络规划设计师 > 2017年下半年 网络规划设计师 上午试卷 综合知识
  第75题      
  章/节:   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.  multicast
 
  B.  unicast
 
  C.  broadcast
 
  D.  multiple unicast
 
 
 

 
  第73题    2017年下半年  
   83%
Typically,an IP address refers to an individual host on a particular network. IP also accommodates addresses that refer..
  第74题    2010年下半年  
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A Bluetooth device can be either a master or a slave and any of the devices within a(71)can be the master. There is only..
  第72题    2010年下半年  
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