Which protection blocks unauthorized access to network resources?

• A. Firewall Protection
• B. Device Control
• C. Antivirus Protection
• D. Scan Compressed Files

Answer: (A)

Blocking unauthorized access to network resources comes from controlling what traffic is allowed to reach your systems. A firewall protection sits at the network boundary and enforces rules about which inbound and outbound connections are permitted, effectively acting as a gatekeeper that blocks unwanted access while letting legitimate traffic through. By inspecting factors like origin, destination, ports, and protocols, it stops unauthorized users or systems from reaching resources and can also prevent data from leaving to untrusted networks.

Other options focus on different security goals: Device Control governs access to physical devices and media; Antivirus Protection targets malware on the host rather than regulating network access; scanning compressed files is a malware-scanning capability used to inspect archive contents, not to block network access itself.