FUNDAMENTALS OF COMPUTER

Detailed explanation-1: -Firewalls are software programs or hardware devices that filter and examine the information coming through your Internet connection. They represent a first line of defense because they can stop a malicious program or attacker from gaining access to your network and information before any potential damage is done.

Detailed explanation-2: -A firewall is software or firmware that prevents unauthorized access to a network. It inspects incoming and outgoing traffic using a set of rules to identify and block threats.

Detailed explanation-3: -The main difference between a hardware firewall and a software firewall is that the hardware firewall runs on its own physical device, while a software firewall is installed on another machine. A common example of a software firewall is the firewall built into most operating systems like Windows and macOS.

Detailed explanation-4: -A firewall monitors and filters incoming and outgoing network traffic based on security policy, allowing approved traffic in and denying all other traffic.

Detailed explanation-5: -The correct answer is firewall. A firewall is a system that prevents unauthorized access to a private network. It is a type of cybersecurity tool that is used to filter traffic on a network.