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  第72题      
  章/节:   计算机专业英语       

 
The Address Resolution Protocol(ARP)was developed to enable communication on an Internetwork and perform a required function in IP routing.ARP lies between layers(71)of the OSI model,and allows computers to introduce each other across a network prior to communication.APR finds the(72 )address of a host from its known(73 )address.Before a device sends a datagram to another device,it looks in its ARP cache to see if there is a MAC address and corresponding IP address for the destination device.If there is no entry,the souree device sends a(74)message to every device on the network.Each device compares the IP address to its own.Only the device with the matching IP address replies with a packet containing the MAC address for the device(except in the case of “proxy ARP”).The source device adds the(75 )device MAC address to its ARP table for future reference.
 
 
  A.  IP
 
  B.  logical
 
  C.  hardware
 
  D.  network
 
 
 

 
  第72题    2013年上半年  
   42%
Traditional IP packet forwarding analyzes the(71)IP address contained in then network layee header of each packet as t..
  第73题    2010年上半年  
   39%
Although a given waveform may contain frequencies over a very broad range, as a practical matter any transmission system..
  第72题    2018年上半年  
   54%
With circuit switching, a (71)path is established between two stations for communication . Switching and transmission ..
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