MCQ Detailed View

The primary function of a firewall in computer networks is to prevent or block unauthorized access to or from a private network.

Firewalls act as a security guard that filters data coming in and going out of a network. They decide whether to allow or block specific traffic based on a set of rules.

Key points:

• Firewall monitors and controls network traffic


• It helps protect your data and devices from hackers and threats


• Firewalls can be software-based or hardware-based


• They are used in both home and business networks

Note: While firewalls may block harmful traffic, their main goal is to stop unauthorized access, not specifically viruses or to increase speed.

Understanding firewalls is essential for keeping your network and personal information safe from cyber attacks.