Which of the following is a characteristic of a Trojan Horse? MCQ with Answer and Explanation

Which of the following is a characteristic of a Trojan Horse?
A. It disguises itself as a legitimate program
B. It encrypts files for ransom
C. It is always harmless
D. It replicates itself without user intervention
Answer: Option A
Solution (By JKSSB Mock Tests)
A Trojan Horse is a type of malware that appears to be a legitimate program but contains malicious code, tricking users into installing it.

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Practice More Cyber Security Questions

Question #1
What type of software exploit injects malicious SQL scripts into database input entry boxes, allowing attackers to download entire customer record directories illegally?
A. Buffer Overflow Exploit
B. SQL Injection
C. Cross-Site Scripting
D. Denial of Service Loop

Correct Answer: Option B


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
Which of the following is a type of DoS (Denial-of-Service) attack?
A. Phishing
B. SQL injection
C. Flooding a network with traffic to make it unavailable
D. Installing a Trojan

Correct Answer: Option C


Explanation:
A Denial-of-Service (DoS) attack aims to make a service or network unavailable by overwhelming it with a flood of traffic.

This question belongs to: Computer Cyber Security
Question #3
A security infrastructure strategy where multiple independent layers of security controls—such as firewalls, MFA, encryption, and awareness training—are deployed across an enterprise is:
A. Zero Trust Model
B. Least Privilege Access
C. Defense in Depth
D. Stateful Boundary Control

Correct Answer: Option C


Explanation:
Defense in Depth combines technical, physical, and administrative security layers to build redundant protection boundaries and avoid single points of failure.

This question belongs to: Computer Cyber Security