What is the primary purpose of a firewall in a computer network? MCQ with Answer and Explanation

What is the primary purpose of a firewall in a computer network?
A. To provide backup services
B. To encrypt all data on the network
C. To monitor and control incoming and outgoing network traffic
D. To detect and remove viruses
Answer: Option C
Solution (By JKSSB Mock Tests)
A firewall monitors and controls incoming and outgoing network traffic based on predetermined security rules.

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Practice More Cyber Security Questions

Question #1
What is the purpose of a vulnerability assessment?
A. To identify and quantify security vulnerabilities in a system
B. To monitor network traffic
C. To fix all security issues
D. To install security patches

Correct Answer: Option A


Explanation:
A vulnerability assessment is a process that identifies, quantifies, and prioritizes vulnerabilities in a system, providing a basis for remediation.

This question belongs to: Computer Cyber Security
Question #2
What is 'ransomware'?
A. A type of encryption algorithm
B. A type of firewall
C. A type of malware that demands payment to restore access to files
D. A type of antivirus software

Correct Answer: Option C


Explanation:
Ransomware is a type of malware that encrypts the victim's files or locks their system and demands a ransom payment to restore access.

This question belongs to: Computer Cyber Security
Question #3
What is the role of a security awareness program?
A. To increase system performance
B. To install security patches
C. To educate users about security risks and best practices
D. To manage network traffic

Correct Answer: Option C


Explanation:
A security awareness program educates users about various security risks, such as phishing and malware, and promotes best practices to protect against them.

This question belongs to: Computer Cyber Security