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

Question
Which of the following is a type of cyber attack that involves stealing data from a system?
A. Man-in-the-middle
B. Phishing
C. Denial-of-service
D. Data exfiltration
Answer: Option D
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.
This question belongs to: Computer Cyber Security
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Practice More Cyber Security Questions

Question #1
Which type of firewall inspects raw data payloads at the highest layer of the network stack, filtering traffic based on specific application commands and web parameters?
A. Stateful Connection Monitor
B. Packet Filter Gateway
C. Application Layer Firewall / Proxy Firewall
D. Circuit Level Interceptor
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Correct Answer: Option C

Explanation:
Application firewalls operate at Layer 7 of the OSI model, analyzing specific application-level protocols (like HTTP or FTP) to block sophisticated web attacks.
This question belongs to: Computer Cyber Security
Question #2
Which of the following is a common cyber threat to personal devices?
A. All of the above
B. Malware infections
C. Physical theft
D. Unsecured networks
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Correct Answer: Option A

Explanation:
Personal devices face multiple cyber threats, including malware infections, physical theft, and security risks from unsecured networks, requiring comprehensive protection measures.
This question belongs to: Computer Cyber Security
Question #3
What technique uses automated scripts to test a massive list of leaked username and password combinations across multiple websites to hijack accounts?
A. Buffer Overflow Exploit
B. SQL Injection
C. Credential Stuffing
D. Session Hijacking
Discuss
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Correct Answer: Option C

Explanation:
Credential stuffing exploits password reuse habits by testing databases of leaked credentials against automated web login forms.
This question belongs to: Computer Cyber Security
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