A. protect... from 保护…免受;B. stop... from 阻止……做某事;C. protect…for 为……保护。根据后半句“…seeing or using information on a computer without permission.(……未经允许在电脑上查看或使用信息。)”可知,应该采用“stop... from 阻止……做某事;”,选项B符合题意,故答案为B。
Generally, filtering decisions are often based on the administrator's rules when setting up the computer and firewall. However, the state table allows these dynamic firewalls to make their own decisions based on previous interactions it has ‘learned’ from. For example, traffic types that caused ...
Firewall definition A firewall is a computer network security system that restricts internet traffic in, out, or within a private network. This software or dedicated hardware-software unit functions by selectively blocking or allowing data packets. It is typically intended to prevent anyone—inside ...
A firewall is a necessary safeguard for any online network. But while every computer comes with some basic firewall protections, there are still vulnerabilities that can be exploited without an advanced firewall shield. Learn what a firewall is, how it works, and how an industry-leading cyber...
Firewalls work very differently depending on whether they’re used by single computers, entire networks (such as within a business office), or web servers. A personal firewall is intended for use on just one computer. This is the firewall that comes pre-installed on Windows and Mac machines...
program on a single computer. This type of firewall is often limited to only blocking traffic in or out of the computer. For instance in the Windows operating system a firewall is installed by default. This will block traffic coming into the computer but allow traffic to leave the computer...
Learn what a firewall does, the types of firewalls, and their limitations. A firewall is positioned between a network or a computer and a different network, like the internet. It controls the network traffic coming in and going out of the computer or net
Similar to this, in certain countries the government maintains a firewall that can bar residents from accessing specific areas of the Internet. History of Firewall The history of firewalls can be traced back to the early days of computer networks and the emergence of the Internet. Here is a ...
What is a Firewall?A firewall is a system that prevents unauthorized access to and from a network. On personal computers, the network protected is often a single computer. These systems typically rely upon a software firewall, that is, a computer program operating in the background that ...
百度试题 结果1 题目What is the purpose of a firewall in a computer system? A. To prevent unauthorized access B. To speed up internet connections C. To store data D. To print documents 相关知识点: 试题来源: 解析 A