_____________ is guarded by firewalls.Select one:data driven attacksfire attacksUnauthorized accessvirus attacks

The correct answer is Unauthorized access.

Explanation

Firewalls are security systems that monitor and control incoming and outgoing network traffic based on predetermined security rules. They serve as a barrier between a trusted network and an untrusted one, helping to prevent unauthorized access. Unauthorized access refers to the attempt to enter a system or network without permission, which firewalls are specifically designed to prevent.

In contrast:

• Data driven attacks focus on manipulating application data.
• Fire attacks aren't a recognized term in cybersecurity.
• Virus attacks are malicious software behavior that can be managed with additional security measures, such as anti-virus software, but firewalls primarily target access control.

Therefore, unauthorized access is most relevant to what firewalls guard against.