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71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        关键词   AC   IEEE

 
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.  numerous
 
  B.  only
 
  C.  single
 
  D.  multicast
 
 
 

  专业英语 知识点 更多相关真题:    更多>  
 
  第75题    2010年下半年  
   72%
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 one master and there can be up to (72) active slave devices..
  第73题    2010年上半年  
   39%
One of the most widely used routing protocols in IP networks is the Routing Information Protocol (RIP). RIP is the canonical example of a routing protocol built on the (71) algorit..
  第73题    2018年下半年  
   59%
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. This address is obtained from the DNS if the sender is the..
 

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↓第71题