The role of firewalls in protecting a computer from viruses is an important topic for anyone interested in becoming a computer repair technician. A firewall is a security device that can help protect your network by filtering traffic and blocking outsiders from gaining unauthorized access to the private data on your computer. Not only does a firewall block unwanted traffic, it can also help block malicious software from infecting your computer.

Firewalls can provide different levels of protection. The key is determining how much protection you need. A firewall acts as a barrier or filter between your computer and another network such as the internet. It helps to protect your network and information by managing your network traffic. This includes blocking unsolicited incoming network traffic and validating access by assessing network traffic for anything malicious like hackers and malware.

Here are some key points to remember about firewalls:

• Firewalls can be either hardware or software.
• Firewalls function using a system of either inclusive or exclusive parameters, allowing specific types of communication in or excluding others.
• There are two types of firewalls: network firewalls and host-based firewalls.
• Network firewalls are typically used by businesses that contain a comprehensive network of multiple computers, servers, and users.
• Host-based firewalls work similarly but are stored locally on a single computer.

I hope this information helps you understand the role of firewalls in protecting a computer from viruses.
So does a firewall protect against viruses? Of Course!