[单项选择]Personal firewall is a technology that helps______intruders from accessing data on your PCvia the Internet or another network, by keeping______data from entering or exiting your system.
Hackers do not just target national security organizations for______: They want your taxreturns, network passwords, or bank account numbers. And you do not want the FBI kicking in yourdoor because someone hijacked your PC to______in the latest denial-of-service attack on theInternet. Now that "always-on" broadband connections such as cable modems and digital subscriberline are becoming more popular, home users are at risk. Fortunately, you can protect your data.Firewalls can block______ attacks and protect your PC from outside threats.

A. allow
B. prevent
C. invite
D. get

[单项选择]

Personal firewall is a technology that helps （） intruders from accessing data on your PC via the Internet or another network, by keeping （） data from entering or exiting your system.
Hackers do not just target national security organizations for （） : They want your tax returns, network passwords, or bank account numbers. And you do not want the FBI kicking in your door because someone hijacked your PC to （） in the latest denial-of-service attack on the Internet. Now that "always-on" broadband connections such as cable modems and digital subscriber line are becoming more popular, home users are at risk. Fortunately, you can protect your data. Firewalls can block （） attacks and protect your PC from outside threats.

Personal firewall is a technology that helps （） intruders from accessing data on your PC via the Internet or another network.
A. allow
B. prevent
C. invite
D. get

[单项选择]Personal firewall is a technology that helps______intruders from accessing data on your PCvia the Internet or another network, by keeping______data from entering or exiting your system.
Hackers do not just target national security organizations for______: They want your taxreturns, network passwords, or bank account numbers. And you do not want the FBI kicking in yourdoor because someone hijacked your PC to______in the latest denial-of-service attack on theInternet. Now that "always-on" broadband connections such as cable modems and digital subscriberline are becoming more popular, home users are at risk. Fortunately, you can protect your data.Firewalls can block______ attacks and protect your PC from outside threats.

A. authorized
B. refused
C. denied
D. unauthorized

[单项选择]There is free firewall software available that can run on minimal hardware and provide a good level of (71) to your network.
A. protective
B. profecting
C. protection
D. profection

[单项选择]Firewall is a mechanism used by organizations to protect their LANs from the Internet．
A. reliable
B. stable
C. peaceful
D. security

[单项选择]MPC(Multimedia Personal Computer)与PC(Personal Computer)的主要区别是增加了（）。
A. 存储信息的实体
B. 视频和音频信息的处理能力
C. 光驱和声卡
D. 大容量的磁介质和光介质

[多项选择]Technology: how to ensure that technology is used effectively in a company

[单项选择]What are the main functions of a firewall system
A. It protected packets of information from being raided.
B. It can break everything up into little packets.
C. It can meet the world demand of the generic plug-in car