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72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.  within
 
  B.  out of
 
  C.  beyond
 
  D.  cover
 
 
 

  专业英语 知识点 更多相关真题:    更多>  
 
  第71题    2012年下半年  
   47%
BGP is an inter-autonomous system routing protocol; it is designed to be used between multiple autonomous (71).BGP assumes that routing within an autonomous system is done by ..
  第72题    2012年下半年  
   38%
BGP is an inter-autonomous system routing protocol; it is designed to be used between multiple autonomous (71).BGP assumes that routing within an autonomous system is done by ..
  第75题    2018年下半年  
   53%
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72题