What is its primary function?

Rationale

Its primary function is to block incoming malicious traffic.

Firewalls are designed specifically to monitor and control incoming and outgoing network traffic based on predetermined security rules. Their main role is to protect networks from unauthorized access and threats by blocking malicious traffic before it can enter the network.

A (To encrypt the database files) YOUR ANSWER

Encryption of database files is typically handled by database management systems or specific encryption software, not by firewalls. While firewalls protect against unauthorized access, they do not perform encryption tasks. Their primary focus is on traffic control rather than data protection through encryption.

B (To monitor logs for unauthorized changes) YOUR ANSWER

While monitoring logs is an important aspect of security, it is usually the responsibility of intrusion detection systems (IDS) or security information and event management (SIEM) tools. Firewalls do not primarily function to monitor logs; instead, they enforce security policies by blocking or allowing traffic based on those policies.

C (To establish VPN access) YOUR ANSWER

Establishing Virtual Private Network (VPN) access is a function of VPN servers and client software rather than firewalls. Although firewalls may need to allow VPN traffic, their core purpose is not to create VPNs but to safeguard the network by blocking or allowing traffic.

Conclusion

Firewalls serve as a critical first line of defense in network security, specifically designed to block incoming malicious traffic and unauthorized access attempts. While they may interact with other security measures like encryption and log monitoring, their primary function remains focused on traffic management. Understanding this role is essential for implementing effective network security strategies.

What is its primary function?

Its primary function is to block incoming malicious traffic.

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