INFORMATION SECURITY EXAMINATION QUESTIONS AND CORRECT ANSWER WITH EXPLANATION GRADED A+ STUDY GUIDE

INFORMATION SECURITY EXAMINATION QUESTIONS
AND CORRECT ANSWER WITH EXPLANATION GRADED
A+ STUDY GUIDE SOUTHERN NEW HAMPSHIRE
UNIVERSITY
1. Information security focuses on:
A. Hardware repair
B. Protecting data and systems from threats
C. Software development only
D. Graphic design
Answer: B
Rationale: InfoSec protects confidentiality, integrity, and availability of data.

2. The CIA triad stands for:
A. Control, Internet, Access
B. Confidentiality, Integrity, Availability
C. Cyber, Information, Access
D. Control, Identity, Authorization
Answer: B
Rationale: Core principles of security.

3. Confidentiality means:
A. Data is public
B. Data is accessible only to authorized users
C. Data is deleted
D. Data is encrypted only
Answer: B
Rationale: Prevents unauthorized access.

4. Integrity ensures:
A. Data is always public
B. Data is not altered improperly
C. Data is deleted
D. Data is hidden
Answer: B
Rationale: Maintains accuracy of data.

,5. Availability means:
A. Data is offline
B. Authorized users can access systems when needed
C. Data is encrypted
D. Data is deleted
Answer: B
Rationale: System uptime and access.

6. Authentication is:
A. Giving permissions
B. Verifying identity
C. Encrypting files
D. Deleting users
Answer: B
Rationale: Identity verification process.

7. Authorization is:
A. Identity verification
B. Granting access rights
C. Data backup
D. File encryption
Answer: B
Rationale: Permission control.

8. Non-repudiation ensures:
A. Data is deleted
B. A user cannot deny an action
C. System is offline
D. Files are hidden
Answer: B
Rationale: Accountability of actions.

9. Encryption is used to:
A. Speed up CPU
B. Protect data by converting it into unreadable form
C. Delete files
D. Increase RAM
Answer: B
Rationale: Secures data confidentiality.

, 10. Decryption is:
A. Hiding data
B. Converting encrypted data back to readable form
C. Deleting files
D. Compressing data
Answer: B
Rationale: Reverse encryption process.

11. Symmetric encryption uses:
A. Two keys
B. One shared key
C. No key
D. Hardware key only
Answer: B
Rationale: Same key for encryption and decryption.

12. Asymmetric encryption uses:
A. One key
B. Public and private keys
C. No keys
D. CPU keys
Answer: B
Rationale: Key pair system.

13. A firewall is used to:
A. Increase RAM
B. Filter network traffic
C. Store data
D. Print files
Answer: B
Rationale: Network protection system.

14. Malware is:
A. Safe software
B. Malicious software
C. Hardware
D. OS
Answer: B
Rationale: Harmful programs.