What is a firewall? What does it do? Discuss the common configuration that employs two firewalls
A firewall is a system used to insulate an organization's intranet from the Internet. It can be used to authenticate an outsider user of the network, verify access authority and then direct the user to the program, data or service requested. Firewalls can also be used to protect LANs from unauthorized internal access.
The network-level firewall provides basic screening of low security messages and routes them to their destinations. The application-level firewall provides high-level network security. These firewalls are configured to run security applications called proxies that perform sophisticated functions such as verifying user authentication.
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Answer the following statement true (T) or false (F)
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a. True b. False Indicate whether the statement is true or false