FUNDAMENTALS OF COMPUTER

Detailed explanation-1: -Answer: A firewall is your first line of defense against anyone hacking into your computer. There are many software versions available if you don’t want to use a router, and some are free to download, although most of these also have paid versions with more features.

Detailed explanation-2: -A firewall is a digital security system that checks all incoming and outgoing traffic on a network according to a defined set of rules. A firewall keeps out unauthorized traffic and lets in only communications that are deemed safe, using a set of security rules that you or your network administrator set up.

Detailed explanation-3: -In a nutshell, firewalls allow or block network traffic between devices based upon rules set up by the firewall administrator. Each rule defines a specific traffic pattern that you want the firewall to detect and the action that you want the firewall to take when that pattern is detected.

Detailed explanation-4: -It provides network security by filtering network communications based on the information contained in the TCP/IP header of each packet. The firewall examines these headers and uses the information to decide whether to accept and route the packets along to their destinations or deny the packet by dropping them.

Detailed explanation-5: -A firewall is your first line of defense against anyone hacking into your computer.