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1. The CIA triad in network security stands for:
   a. Confidentiality, Integrity, Availability
   b. Communication, Information, Authentication
   c. Cybersecurity, Internet, Authorization
   d. Confidentiality, Identity, Authorization
   Answer: ageeksforgeeks+2
2. Which principle of the CIA triad focuses on protecting data from unauthorized access?
   a. Integrity
   b. Confidentiality
   c. Availability
   d. Authenticity
   Answer: bsecurityscorecard+2
3. In the CIA triad, which principle ensures that information is accurate and unaltered?
   a. Availability
   b. Confidentiality
   c. Integrity
   d. Authentication
   Answer: cdatasunrise+2
4. Which component of the CIA triad guarantees access to data when needed?
   a. Availability
   b. Integrity
   c. Confidentiality
   d. Non-repudiation
   Answer: afortinet+2
5. What is the purpose of encryption in the context of the CIA triad?
   a. To ensure confidentiality
   b. To guarantee integrity
   c. To provide availability
   d. To enable authentication
   Answer: ageeksforgeeks+2
6. Which of the following is a threat to data integrity?
   a. Data encryption
   b. Unauthorized data modification
   c. Network redundancy
   d. Data backup
   Answer: bdatasunrise+2
7. Which approach helps maintain data availability in case of hardware failure?
   a. Encryption
   b. Access controls
   c. Redundancy
   d. Data validation
   Answer: cfortinet+2
8. Who should have access to confidential network data according to the CIA triad?
   a. Every employee
   b. Authorized users only
   c. Network administrators
   d. External auditors
   Answer: blearningnetwork.cisco+2
9. What is the effect of a denial-of-service (DoS) attack?
   a. Loss of confidentiality
   b. Reduced availability
   c. Broken integrity
   d. Improved authentication
   Answer: bgeeksforgeeks+2
10. What is used to ensure the integrity of transmitted data in a network?
    a. Digital signatures
    b. Redundant servers
    c. Encryption keys
    d. User authentication
    Answer: asecurityscorecard+2
11. In the CIA triad, if data is accessed by an unauthorized person, which principle is violated?
    a. Availability
    b. Confidentiality
    c. Integrity
    d. Non-repudiation
    Answer: bdatasunrise+2
12. Data backup primarily preserves which principle of the CIA triad?
    a. Confidentiality
    b. Integrity
    c. Availability
    d. Authentication
    Answer: cfortinet+2
13. What does multi-factor authentication mainly support in the CIA triad?
    a. Confidentiality
    b. Integrity
    c. Availability
    d. Non-repudiation
    Answer: aplacementpreparation+2
14. Which of the following is LEAST likely to protect data confidentiality?
    a. Access control lists
    b. Firewall
    c. Physical locks
    d. Disabling network access
    Answer: dsecurityscorecard+2
15. Which of the following best describes integrity in networking?
    a. Encryption of data
    b. Ensuring data is not altered without authorization
    c. Preventing data leakage
    d. Allowing data access anytime
    Answer: bgeeksforgeeks+2
16. What mechanism can restore availability after a major outage?
    a. Data classification
    b. Disaster recovery plan
    c. Digital signatures
    d. Role-based access control
    Answer: bdatasunrise+2
17. Confidential information should be protected with:
    a. Strong encryption algorithms
    b. Network segmentation
    c. Availability planning
    d. Redundant cabling
    Answer: asecurityscorecard+2
18. Which process detects unauthorized changes to network files?
    a. Hashing
    b. Load balancing
    c. Encryption
    d. Backup scheduling
    Answer: ageeksforgeeks+2
19. Taking regular system backups most closely supports which CIA principle?
    a. Confidentiality
    b. Integrity
    c. Availability
    d. Non-repudiation
    Answer: cfortinet+2
20. In the CIA triad, which principle is maintained by locking server rooms?
    a. Integrity
    b. Confidentiality
    c. Availability
    d. Authentication
    Answer: blearningnetwork.cisco+2
21. What does a firewall primarily protect in the CIA framework?
    a. Confidentiality
    b. Integrity
    c. Availability
    d. Non-repudiation
    Answer: adatasunrise+2
22. What method detects unauthorized alteration to transmitted data?
    a. MAC (Message Authentication Code)
    b. Backup tapes
    c. RAID arrays
    d. User permissions
    Answer: asecurityscorecard+2
23. Which of these is a risk to availability in networking?
    a. Natural disasters
    b. Data encryption
    c. Password strength
    d. Encryption keys
    Answer: afortinet+2
24. Which factor supports both integrity and confidentiality?
    a. Hashing and encryption
    b. Backup scheduling
    c. Physical locks
    d. Multi-factor authentication
    Answer: ageeksforgeeks+2
25. Which action is a violation of confidentiality?
    a. Data tampering
    b. Data deletion
    c. Eavesdropping on traffic
    d. Network redundancy
    Answer: cdatasunrise+2
26. Which of the following protects network availability from cyberattacks?
    a. Anti-malware software
    b. Data classification
    c. Password policies
    d. User training
    Answer: asecurityscorecard+2
27. What is the primary goal of audit logs in networking?
    a. Track data access for integrity and availability
    b. Encrypt sensitive information
    c. Provide backup copies
    d. Enable multi-factor authentication
    Answer: afortinet+2
28. What best defines the CIA triad in cybersecurity?
    a. Controlling access, ensuring accuracy, enabling data access for authorized users
    b. Encrypting all data at rest
    c. Maintaining always-on network connections
    d. Enforcing complex passwords
    Answer: ageeksforgeeks+2
29. Which network device enhances confidentiality and availability simultaneously?
    a. VPN (Virtual Private Network)
    b. Proxy server
    c. Switch
    d. Wireless access point
    Answer: adatasunrise+2
30. Redundant power supplies in servers are mainly used to support:
    a. Confidentiality
    b. Integrity
    c. Availability
    d. Authentication
    Answer: cfortinet+2
31. What security action best maintains data integrity?
    a. Using digital certificates
    b. Implementing encryption
    c. Applying data validation checks
    d. Disabling user accounts
    Answer: csecurityscorecard+2
32. The process of restricting network access through permissions supports:
    a. Confidentiality
    b. Integrity
    c. Availability
    d. Non-repudiation
    Answer: aplacementpreparation+2
33. Which threat affects the integrity component of the CIA triad?
    a. Data tampering by hackers
    b. Power failure
    c. User password guessing
    d. Unauthorized device connections
    Answer: ageeksforgeeks+2
34. What term describes ensuring accurate transmission of data packets?
    a. Data integrity
    b. Data confidentiality
    c. Data authentication
    d. Data availability
    Answer: adatasunrise+2
35. Which method supports all three CIA triad elements?
    a. Role-based access control combined with backup and encryption
    b. Multi-factor authentication only
    c. Installing antivirus software
    d. Physical security measures
    Answer: asecurityscorecard+2
36. What attack is specifically a threat to availability?
    a. Distributed denial-of-service (DDoS) attack
    b. Phishing attack
    c. Password brute-force attack
    d. Shoulder surfing
    Answer: afortinet+2
37. Which is NOT a core principle of the CIA triad?
    a. Confidentiality
    b. Availability
    c. Authenticity
    d. Integrity
    Answer: csanfoundry+2
38. Which of the following helps verify data integrity in a network?
    a. Checksums
    b. Password encryption
    c. Network segmentation
    d. Redundant servers
    Answer: ageeksforgeeks+2
39. Data classification in networking is primarily used to support:
    a. Confidentiality and integrity
    b. Confidentiality and availability
    c. Integrity and authentication
    d. Availability and encryption
    Answer: adatasunrise+2
40. Which is a common method to ensure availability of network applications?
    a. Load balancing
    b. Intrusion detection
    c. Network sniffing
    d. Packet filtering
    Answer: afortinet+2
41. If a backup system fails, which CIA principle is compromised?
    a. Availability
    b. Integrity
    c. Confidentiality
    d. Authentication
    Answer: asecurityscorecard+2
42. When data is overwritten or deleted by accident, which CIA principle is affected?
    a. Availability
    b. Confidentiality
    c. Integrity
    d. Non-repudiation
    Answer: cgeeksforgeeks+2
43. Which CIA principle do strong password policies mainly serve?
    a. Confidentiality
    b. Availability
    c. Integrity
    d. Authentication
    Answer: adatasunrise+2
44. Which is NOT an example of ensuring confidentiality?
    a. Data encryption
    b. Data hashing
    c. Strong passwords
    d. Access control lists
    Answer: bsecurityscorecard+2
45. Which of the CIA principles is most at risk during a network outage?
    a. Confidentiality
    b. Integrity
    c. Availability
    d. Non-repudiation
    Answer: cfortinet+2
46. Which CIA principle is supported by digital signatures?
    a. Integrity
    b. Confidentiality
    c. Availability
    d. Authentication
    Answer: ageeksforgeeks+2
47. The concept of “least privilege” primarily supports which CIA principle?
    a. Confidentiality
    b. Availability
    c. Non-repudiation
    d. Integrity
    Answer: adatasunrise+2
48. Ensuring that network logs cannot be tampered with supports:
    a. Integrity
    b. Confidentiality
    c. Availability
    d. Non-repudiation
    Answer: afortinet+2
49. Data stored in encrypted form mainly preserves:
    a. Confidentiality
    b. Integrity
    c. Availability
    d. Authentication
    Answer: asecurityscorecard+2
50. Which threat simultaneously affects confidentiality, integrity, and availability?
    a. Malware infection
    b. Data encryption
    c. Network redundancy
    d. Hashing algorithms
    Answer: ageeksforgeeks+2

1. https://www.geeksforgeeks.org/computer-networks/the-cia-triad-in-cryptography/
2. https://securityscorecard.com/blog/what-is-the-cia-triad/
3. https://www.placementpreparation.io/mcq/cyber-security/
4. https://learningnetwork.cisco.com/s/question/0D53i00000KsuxSCAR/confidentiality-integrity-and-availability
5. https://www.datasunrise.com/knowledge-center/confidentiality-integrity-availability-examples/
6. https://www.fortinet.com/resources/cyberglossary/cia-triad
7. https://www.sanfoundry.com/cyber-security-questions-answers-elements-security/
8. https://www.sanfoundry.com/1000-cyber-security-questions-answers/
9. https://www.interviewbit.com/cyber-security-mcq/
10. https://www.scribd.com/presentation/629357234/Lecture-5-Questions-and-Answers-CIA-Triad-and-Cybersecurity-Roles
11. https://www.cliffsnotes.com/study-notes/27730128
12. https://www.yeahhub.com/cissp/question-bank-05.php
13. https://ine.com/blog/2011-01-24-iins-exam-practice-the-cia-triad
14. https://www.uninets.com/blog/cissp-interview-questions
15. https://wayground.com/admin/quiz/5ec56c84d4c181001b4fad00/information-security-and-the-cia-triad
16. https://study.com/academy/practice/quiz-worksheet-cia-triad-security-design-for-iot-products.html
17. https://www.examtopics.com/discussions/isc/view/81862-exam-cissp-topic-1-question-200-discussion/
18. https://www.studocu.com/in/document/srm-institute-of-science-and-technology/information-security/18csc364j-information-security-mcq-unit-1/31359725
19. https://itexamanswers.net/cybersecurity-essentials-final-quiz-answers-full-questions.html
20. https://www.scribd.com/document/413985393/CH-31-Network-Security-Multiple-Choice-Questions-and-Answers-PDF