Which of the following is a type of malware that hides in the operating system and is difficult to detect? MCQ with Answer and Explanation

Which of the following is a type of malware that hides in the operating system and is difficult to detect?
A. Ransomware
B. Spyware
C. Rootkit
D. Adware
Answer: Option C
Solution (By JKSSB Mock Tests)
A rootkit is a type of malware that hides deep within the operating system, often at the kernel level, making it very difficult to detect and remove.

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Practice More Cyber Security Questions

Question #1
A malicious script designed to lie completely dormant inside an operating system registry until a specific calendar date or logic condition triggers its destructive routine is a/an:
A. Computer Worm
B. Logic Bomb
C. Adware Bundle
D. Macro Exploit

Correct Answer: Option B


Explanation:
Logic bombs are code strings embedded inside software setups programmed to launch malicious operations only when precise conditions or time metrics are satisfied.

This question belongs to: Computer Cyber Security
Question #2
What form of malicious exploit attempts to guess an operator's password by using automated script loops that cycle through millions of characters or dictionary strings systematically?
A. Brute Force Attack
B. SQL Injection Exploit
C. Phishing Setup
D. Packet Sniffing Exploit

Correct Answer: Option A


Explanation:
Brute force attacks run automated character guessing scripts to test password permutations until finding a combination that unlocks the targeted account.

This question belongs to: Computer Cyber Security
Question #3
What type of software exploit injects malicious SQL scripts into database input entry boxes, allowing attackers to download entire customer record directories illegally?
A. SQL Injection
B. Denial of Service Loop
C. Buffer Overflow Exploit
D. Cross-Site Scripting

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