Which of the following is a type of cyber attack that involves stealing data from a system? MCQ with Answer and Explanation

Which of the following is a type of cyber attack that involves stealing data from a system?
A. Data exfiltration
B. Man-in-the-middle
C. Phishing
D. Denial-of-service
Answer: Option A
Solution (By JKSSB Mock Tests)
Data exfiltration is the unauthorized transfer of data from a system, often carried out by attackers to steal sensitive information.

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Practice More Cyber Security Questions

Question #1
What type of script vulnerability targets database processing fields by passing unvalidated parameters directly into an application’s dynamic query logic?
A. SQL Injection
B. Denial of Service Loop
C. Cross-Site Scripting
D. Buffer Overflow Exploit

Correct Answer: Option A


Explanation:
SQL injection executes arbitrary database commands by inserting malicious SQL code statements into unvalidated input fields.

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. Rootkit Module
B. Computer Worm
C. Ransomware Core
D. Trojan Horse

Correct Answer: Option D


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 method to protect data at rest?
A. Intrusion detection system
B. Encryption
C. Firewall
D. Antivirus software

Correct Answer: Option B


Explanation:
Encryption is the primary method to protect data at rest, ensuring that even if storage media is compromised, the data remains unreadable without the decryption key.

This question belongs to: Computer Cyber Security