Which is a typical function of a firewall?

Which is a typical function of a firewall?

• A. Logged Traffic
• B. Single Point of Contact
• C. DMZ hosting
• D. VPN termination

Answer: (A)

Firewalls are primarily about controlling and monitoring traffic between networks. A typical function is logging traffic, which records who talked to whom, what ports and protocols were used, timestamps, and whether the traffic was allowed or blocked. These logs provide visibility for real-time monitoring, forensics, and compliance, helping detect anomalies and investigate incidents. The other options describe deployment patterns or capabilities that may be present in some firewalls but aren’t the defining, everyday function. A single point of contact is more about network design than a firewall’s core role. DMZ hosting is a deployment concept that uses a firewall to separate exposed servers from trusted networks, not a fundamental firewall function. VPN termination can be a capability of some firewalls, but it isn’t the universal or primary purpose of a firewall.

Firewalls are primarily about controlling and monitoring traffic between networks. A typical function is logging traffic, which records who talked to whom, what ports and protocols were used, timestamps, and whether the traffic was allowed or blocked. These logs provide visibility for real-time monitoring, forensics, and compliance, helping detect anomalies and investigate incidents.

The other options describe deployment patterns or capabilities that may be present in some firewalls but aren’t the defining, everyday function. A single point of contact is more about network design than a firewall’s core role. DMZ hosting is a deployment concept that uses a firewall to separate exposed servers from trusted networks, not a fundamental firewall function. VPN termination can be a capability of some firewalls, but it isn’t the universal or primary purpose of a firewall.