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  第73题      
  章/节:   计算机专业英语       

 
Without proper safeguards, every part of a network is vulnerable to a security breach or unauthorized activity from (71), competitors, or even employees. Many of the organizations that manage their own (72) network security and use the Internet for more than just sending/receiving e-mails experience a network (73)—and more than half of these companies do not even know they were attacked. Smaller(74)are often complacent, having gained a false sense of security. They usually react to the last virus or the most recent defacing of their website. But they are trapped in a situation where they do not have the necessary time and(75)to spend on security.
 
 
  A.  attack
 
  B.  collapse
 
  C.  breakdown
 
  D.  virus
 
 
 

 
  第73题    2013年下半年  
   59%
The de facto standard Application Program Interface (API) for TCP/IP applications is the ”sockets” interface..
  第74题    2018年下半年  
   56%
The TTL field was originally designed to hold a time stamp, which was decremented by each visited router.The datagram wa..
  第73题    2011年下半年  
   45%
A transport layer protocol usually has several responsibilities. One is to create a process-to-process communication; UD..
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