What is the role of a digital signature in cybersecurity? MCQ with Answer and Explanation

What is the role of a digital signature in cybersecurity?
A. To provide authentication and integrity of a digital message
B. To compress a file
C. To speed up data transmission
D. To encrypt a message
Answer: Option A
Solution (By JKSSB Mock Tests)
A digital signature is a mathematical scheme for verifying the authenticity and integrity of a digital message or document, ensuring it has not been altered.

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Practice More Cyber Security Questions

Question #1
Which of the following is a common technique used in phishing attacks?
A. Denial-of-service attack
B. Installing a virus on a computer
C. Sending fraudulent emails that appear to come from legitimate sources
D. Physically stealing hardware

Correct Answer: Option C


Explanation:
Phishing attacks often involve sending deceptive emails that look like they are from reputable companies to trick recipients into providing sensitive information.

This question belongs to: Computer Cyber Security
Question #2
Which security standard forces a system to demand multiple independent proofs of identity—such as a password mixed with an instant mobile token—before permitting user access?
A. Single Sign-On (SSO)
B. Multi-Factor Authentication (MFA)
C. Access Control Listing (ACL)
D. Data Encrypting Standard (DES)

Correct Answer: Option B


Explanation:
MFA combines validation factors from distinct categories: something you know (password), something you have (token/device), or something you are (biometrics).

This question belongs to: Computer Cyber Security
Question #3
A hacker who uses simple, pre-written malicious scripts found online to deface websites or launch basic exploits without deep knowledge of programming is called a:
A. Script Kiddie
B. White Hat Engineer
C. Black Hat operative
D. Grey Hat analyst

Correct Answer: Option A


Explanation:
Script kiddies are low-skilled attackers who rely on pre-made, automated exploitation kits created by more experienced software developers.

This question belongs to: Computer Cyber Security