What is the role of a firewall in a home network? MCQ with Answer and Explanation

What is the role of a firewall in a home network?
A. To provide Wi-Fi connectivity
B. To protect devices from external threats
C. To manage user accounts
D. To increase internet speed
Answer: Option B
Solution (By JKSSB Mock Tests)
A home firewall protects personal devices from unauthorized access and malicious traffic coming from the internet.

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Practice More Cyber Security Questions

Question #1
A malicious script designed to lie completely dormant inside an operating system registry until a specific calendar date or logic condition triggers its destructive routine is a/an:
A. Computer Worm
B. Adware Bundle
C. Macro Exploit
D. Logic Bomb

Correct Answer: Option D


Explanation:
Logic bombs are code strings embedded inside software setups programmed to launch malicious operations only when precise conditions or time metrics are satisfied.

This question belongs to: Computer Cyber Security
Question #2
Which specific malware variety isolates data files by encrypting directories with high-grade algorithms, demanding cryptocurrency payments to unlock access?
A. Computer Worm
B. Ransomware
C. Adware Module
D. Rootkit Module

Correct Answer: Option B


Explanation:
Ransomware targets data directories via cryptographic algorithms, locking file access until a ransom payment is made.

This question belongs to: Computer Cyber Security
Question #3
What is 'pharming'?
A. A type of phishing that redirects users to fake websites without their knowledge
B. A type of firewall
C. A type of farming
D. A type of antivirus

Correct Answer: Option A


Explanation:
Pharming is a cyber attack that redirects a website's traffic to a fake site without the user's knowledge, often by exploiting DNS vulnerabilities, to steal information.

This question belongs to: Computer Cyber Security