免费智能真题库 > 历年试卷 > 网络工程师 > 2022年下半年 网络工程师 上午试卷 综合知识
  第74题      
  章/节:   计算机专业英语       

 
Network firewalls are security devices used to stolo or mitigate(71) access to private networks connected to the Internet, especially intranets. The only traffic allowed on the network is defined via firewall (72)-any other traffic attempting to access the network is blocked. Networkfirewalls sit at the (73) line of a network, acting as a communications liaison between intenal and extenal devices, When properly configured, a firewall allows users to access any of the resources they need while simultaneously keeping out unwanted accesses. In addition to limiting access to a protected computer and network, a firewall can (74) all traffic coming into or leaving a network, and manage remote access to a private network through secure authentication certificates and logins. (75) firewalls examine every packet that passes through the network and then accept or deny it as defined by rules set by the user.
 
 
  A.  Reply
 
  B.  block
 
  C.  log
 
  D.  encrypt
 
 
 

 
  第74题    2017年下半年  
   62%
routing in circuit-switching networks has traditionally involved a static routing strategy with the use of(71)paths to..
  第72题    2014年上半年  
   64%
The traditional way of allocating a single channel among multiple competing users is to chop up its (71) by using one of..
  第75题    2011年下半年  
   77%
A transport layer protocol usually has several responsibilities. One is to create a process-to-process communication; UD..
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