Answer-What is a ‘Firewall' in the context of network security?

A Firewall is a network security device that monitors and filters incoming and outgoing network traffic based on an organizations previously established security policies.

Question

What is a ‘Firewall' in the context of network security?

A A type of malware that spreads through email attachments.

B A hardware device used to boost network performance.

C A software application for managing files and folders.

D A security mechanism that filters and controls network traffic.

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