Question

A firewall may be implemented in ​

Answer 1

Answer:

Firewall is a system designed to prevent unauthorized access to or from a private network. They can be implemented in both hardware and software, or a combination of both. Our objective is to build a firewall that blocks unauthorized access while permitting authorized communications using packet filtering.

Explanation:

Answer 2

A firewall is software used to maintain the security of a private network. Firewalls block unauthorized access to or from private networks and are often employed to prevent unauthorized Web users or illicit software from gaining access to private networks connected to the Internet. A firewall may be implemented using hardware, software, or a combination of both.

A firewall is recognized as the first line of defense in securing sensitive information. For better safety, the data can be encrypted.