basic computer MCQ #16591

What does a firewall primarily do in a network?

basic computer MCQ #16591

  1. Question 1

    Q1. What does a firewall primarily do in a network?

    • A) Filters incoming and outgoing traffic based on security rules
    • B) Encrypts all network data end-to-end
    • C) Assigns IP addresses to devices automatically
    • D) Compresses data for faster transmission

    Answer: Filters incoming and outgoing traffic based on security rules

    Explanation: A firewall filters network traffic by examining packets against a defined set of security rules, blocking unauthorized access while allowing legitimate communication. It acts as a barrier between trusted internal networks and untrusted external networks.