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1. Which principle ensures that data is not altered or tampered with
during storage or transmission?
A. Availability
B. Confidentiality
C. Integrity
D. Authentication
Answer: C
Integrity ensures that information remains accurate and
unmodified unless authorized changes occur, protecting against
tampering or corruption.
2. What is the primary purpose of multi-factor authentication
(MFA)?
A. Increase network speed
B. Provide layered security verification
C. Encrypt stored data
D. Monitor system logs
Answer: B
MFA strengthens security by requiring multiple forms of identity
verification, reducing the risk of unauthorized access.
3. Which attack involves overwhelming a system with traffic to make
it unavailable?
A. Phishing
, B. SQL Injection
C. Denial of Service (DoS)
D. Spoofing
Answer: C
A DoS attack floods a system with excessive requests, causing
service disruption or downtime.
4. What does a firewall primarily do?
A. Encrypt files
B. Filter network traffic
C. Detect malware
D. Backup data
Answer: B
A firewall monitors and controls incoming and outgoing network
traffic based on security rules.
5. Which type of malware encrypts files and demands payment for
decryption?
A. Worm
B. Trojan
C. Ransomware
D. Spyware
Answer: C
Ransomware locks or encrypts data and demands ransom for
restoration.
6. What is the purpose of hashing in cybersecurity?
A. To encrypt data reversibly
B. To store passwords in plain text
C. To generate a fixed-length representation of data
D. To increase bandwidth
Answer: C
, Hashing creates a unique, fixed-size output from input data,
used for integrity verification.
7. Which protocol secures web traffic using encryption?
A. HTTP
B. FTP
C. HTTPS
D. SMTP
Answer: C
HTTPS uses TLS/SSL to encrypt communication between
browsers and servers.
8. What is phishing?
A. Hardware failure
B. Social engineering attack to steal credentials
C. Network encryption method
D. Database backup technique
Answer: B
Phishing tricks users into revealing sensitive information through
deceptive messages or websites.
9. Which security model enforces "never trust, always verify"?
A. Perimeter security
B. Zero Trust
C. Open access
D. Role-based access
Answer: B
Zero Trust assumes no user or device is inherently trusted,
requiring continuous verification.
10. What is the main goal of an Intrusion Detection System
(IDS)?
A. Block traffic automatically