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
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。
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 scrutinizes all incoming ...
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 ...
DOWNLOAD THE REPORT Firewall Defined What is a firewall in computer networks? A firewall is a device that filters the traffic that is allowed to go to or from a section of your network. Also, within this firewall definition, a firewall can be used to set up a securevirtual private net...
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 or outside a privat...
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
Firewall Types by Placement within Network Infrastructure Internal Firewall These are positioned within a network, rather than at the edge, to protect against internal threats. Distributed Firewall This is a scalable approach, where the solution is distributed across multiple devices or servers. Perime...
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...
Firewall – meaning and definition A firewall is a computer network security system that restricts internet traffic in to, out of, 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...