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

What is the purpose of a digital certificate?
A. To speed up data transmission
B. To encrypt a message
C. To compress a file
D. To verify the identity of an entity in a digital communication
Answer: Option D
Solution (By JKSSB Mock Tests)
A digital certificate is an electronic document that uses a digital signature to bind a public key with an identity, verifying the owner's authenticity in online communications.

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Practice More Cyber Security Questions

Question #1
A protocol exploit where a threat actor inserts their device into the communication pathway between a client terminal and an internet server to eavesdrop or alter data packets silently is a/an:
A. Distributed Traffic Flood
B. Brute Force Cracking
C. Man-in-the-Middle (MitM) Attack
D. SQL Injection Exploit

Correct Answer: Option C


Explanation:
MitM attacks intercept communication paths between two trusting parties to secretly listen to, relay, or manipulate data payloads.

This question belongs to: Computer Cyber Security
Question #2
What is 'whaling' in cybersecurity?
A. A type of firewall
B. A type of virus
C. A phishing attack targeting high-profile individuals like CEOs
D. A physical attack

Correct Answer: Option C


Explanation:
Whaling is a specific type of phishing attack that targets senior executives or high-profile individuals within an organization, often using sophisticated and personalized messages.

This question belongs to: Computer Cyber Security
Question #3
What technique involves an attacker manipulating or modifying the source IP address headers of data packets to disguise their true digital identity and spoof a trusted network node?
A. IP Spoofing
B. Cross-Site Execution
C. Man-in-the-Middle
D. SQL Tampering

Correct Answer: Option A


Explanation:
IP spoofing masks packet origins by replacing real source headers with fake addresses to bypass firewall restrictions or gain unauthorized network access.

This question belongs to: Computer Cyber Security