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72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.  Ports
 
  B.  policies
 
  C.  commands
 
  D.  status
 
 
 

 
  第74题    2021年上半年  
   33%
Network Addres Translation(NAT) is an Internet standard that enbles a local-area network to use one set of IP addresses ..
  第72题    2013年下半年  
   65%
The de facto standard Application Program Interface (API) for TCP/IP applications is the ”sockets” interface..
  第72题    2022年上半年  
   80%
A network attack is an attempt to gain(71)access to an organization’s network,with the objective of stealing data or ..
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