What form of malicious software is designed to encrypt a user's files, rendering them inaccessible until a decryption key fee is paid? MCQ with Answer and Explanation

Question
What form of malicious software is designed to encrypt a user's files, rendering them inaccessible until a decryption key fee is paid?
A. Adware
B. Spyware
C. Trojan Horse
D. Ransomware
Answer: Option D
Solution (By JKSSB Mock Tests)
Ransomware is malware that hijacks user files via encryption, demanding payment to restore access. Security utilities work to block it.
This question belongs to: Computer Computer Software
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Practice More Computer Software Questions

Question #1
What is the primary technical role of a Just-In-Time (JIT) compiler in modern software engineering environments?
A. To merge separate static library modules into a single binary file.
B. To translate assembly text into machine binary code files before shipping software.
C. To compile intermediate bytecode into native machine instructions on the fly during runtime to improve execution speed.
D. To scrub malicious registry entries before the operating system boots up.
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Correct Answer: Option C

Explanation:
JIT compilers improve execution speed by compiling bytecode into native machine instructions on the fly as the program runs, combining the flexibility of interpretation with the speed of compilation.
This question belongs to: Computer Computer Software
Question #2
Which of the following is a type of system software that provides runtime environment for applications?
A. Graphics editor
B. Runtime library
C. Word processor
D. Spreadsheet
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Correct Answer: Option B

Explanation:
Runtime libraries provide essential functions for executing compiled programs.
This question belongs to: Computer Computer Software
Question #3
Which of the following is an example of a graphic design software?
A. Outlook
B. Excel
C. CorelDRAW
D. Word
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Correct Answer: Option C

Explanation:
CorelDRAW is a vector graphic design application.
This question belongs to: Computer Computer Software
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