What is the purpose of a digital signature? MCQ with Answer and Explanation

What is the purpose of a digital signature?
A. To compress a message
B. To encrypt a message
C. To speed up message delivery
D. To verify the authenticity and integrity of a message
Answer: Option D
Solution (By JKSSB Mock Tests)
A digital signature provides authentication and integrity verification, ensuring that a message or document comes from the claimed sender and has not been altered.

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Practice More Cyber Security Questions

Question #1
Which of the following is a type of malware that displays unwanted pop-up ads?
A. Adware
B. Ransomware
C. Trojan
D. Spyware

Correct Answer: Option A


Explanation:
Adware is a type of malware that automatically displays or downloads unwanted advertisements, often in the form of pop-up ads, without the user's consent.

This question belongs to: Computer Cyber Security
Question #2
What form of malicious software masquerades as a legitimate spreadsheet processor or media utility, tricks users into downloading it, and then drops spyware onto the system?
A. Computer Worm
B. Ransomware Core
C. Trojan Horse
D. Rootkit Module

Correct Answer: Option C


Explanation:
Trojan horses use deceptive packaging to mimic safe software utilities, tricking victims into initiating code that compromises their own security perimeters.

This question belongs to: Computer Cyber Security
Question #3
Which of the following is a common security risk associated with remote work?
A. Regular security updates
B. Use of strong passwords
C. Use of VPNs
D. Unsecured home networks

Correct Answer: Option D


Explanation:
Remote work often involves using unsecured home networks, which can expose corporate devices and data to cyber threats without proper security measures like VPNs.

This question belongs to: Computer Cyber Security