免费智能真题库 > 历年试卷 > 网络工程师 > 2019年上半年 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 security consists of policies and practices to prevent and monitor(71)access,misuse, modification, or denial of a computer network and network-accessible resources.Network security involves the authorization of access to data in a network, which is controlled by the network(72).Users choose or are assigned an ID and password or other authenticating information that allows them to access to information and programs within their authority.Network security secures the network, as well as protecting and overseeing operations being done. The most common and simple way of protecting a network resource is by assigning it a (73)name and a corresponding password. Network security starts with authentication. Once authenticated,a(74)enforces access policies such as what services are allowed to be accessed by the network users.Though effective to prevent unauthorized access, this component may fail to check potentially harmful content such as computer(75)or Trojans being transmitted over the network.
 
 
  A.  firewall
 
  B.  proxy
 
  C.  gateway
 
  D.  host
 
 
 

 
  第73题    2018年下半年  
   60%
The TTL field was originally designed to hold a time stamp, which was decremented by each visited router.The datagram wa..
  第73题    2013年上半年  
   73%
Traditional IP packet forwarding analyzes the(71)IP address contained in then network layee header of each packet as t..
  第73题    2009年上半年  
   73%
The Border Gateway Protocol (BGP) is an interautonomous system (71) protocol. The primary function of a BGP speaking sys..
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