Which of the following is a type of attack that attempts to make a service unavailable by overwhelming it with traffic? MCQ with Answer and Explanation

Which of the following is a type of attack that attempts to make a service unavailable by overwhelming it with traffic?
A. Man-in-the-middle
B. SQL injection
C. Denial-of-Service (DoS)
D. Phishing
Answer: Option C
Solution (By JKSSB Mock Tests)
A Denial-of-Service (DoS) attack aims to make a service or network resource unavailable by flooding it with traffic or requests.

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Practice More Cyber Security Questions

Question #1
What is the difference between a firewall and an antivirus?
A. A firewall protects the network; an antivirus protects the individual device
B. An antivirus is hardware; a firewall is software
C. They have the same function
D. A firewall protects the device; an antivirus protects the network

Correct Answer: Option A


Explanation:
A firewall secures a network by controlling traffic, while antivirus software protects individual devices from malware.

This question belongs to: Computer Cyber Security
Question #2
What does 'ethical hacking' refer to?
A. Hacking performed with the permission of the system owner to identify vulnerabilities
B. Hacking to cause damage to systems
C. Hacking for financial gain
D. Hacking without any permission

Correct Answer: Option A


Explanation:
Ethical hacking is authorized hacking conducted to identify and fix security weaknesses in a system, with the goal of strengthening security.

This question belongs to: Computer Cyber Security
Question #3
What is 'pharming'?
A. A type of antivirus
B. A type of firewall
C. A type of farming
D. A type of phishing that redirects users to fake websites without their knowledge

Correct Answer: Option D


Explanation:
Pharming is a cyber attack that redirects a website's traffic to a fake site without the user's knowledge, often by exploiting DNS vulnerabilities, to steal information.

This question belongs to: Computer Cyber Security