ISC2 CC EXAM AND PRACTICE EXAM BANK | ISC2 CERTIFIED IN
CYBERSECURITY (CC) EXAM PREP WITH COMPLETE 450 REAL
EXAM QUESTIONS AND CORRECT DETAILED ANSWERS
(VERIFIED ANSWERS) ALREADY GRADED A+ (MOST
RECENT!)LATEST UPDATE 2026/2027
1 Which of the following best describes the purpose of the ISC2 Code of Ethics?
a. To provide legal prosecution for cybersecurity professionals
b. To establish mandatory technical standards for all security tools
c. To set professional standards of conduct and guide ethical decision-making for
certified members
d. To create a global certification fee structure
- Correct Answer- C
Rationale: The ISC2 Code of Ethics establishes professional standards of conduct
to guide certified members in making ethical decisions, prioritizing the protection
of society, the common good, necessary public trust, and the infrastructure.
2 A security analyst is reviewing access logs and notices multiple failed login
attempts followed by a successful login from the same IP address. Which type of
attack is most likely occurring?
a. Man-in-the-middle attack
b. Denial-of-service attack
c. Brute force or password spraying attack
d. SQL injection attack
- Correct Answer- C
1|Page
,Rationale: Multiple failed login attempts followed by a successful login indicates
an attacker attempting to guess passwords (brute force) or testing common
passwords across many accounts (password spraying).
3 Which access control model uses security labels (e.g., Top Secret, Secret,
Confidential) to control access based on a subject's clearance level?
a. Discretionary Access Control (DAC)
b. Role-Based Access Control (RBAC)
c. Mandatory Access Control (MAC)
d. Attribute-Based Access Control (ABAC)
- Correct Answer- C
Rationale: MAC uses predefined security labels and clearance levels. The system
enforces access based on these labels, and users cannot change permissions.
4 What is the primary purpose of a security information and event management
(SIEM) system?
a. To block malicious network traffic in real time
b. To aggregate, correlate, and analyze log data from multiple sources to detect
security incidents
c. To encrypt all data stored on a network
d. To manage user passwords and credentials
- Correct Answer- B
Rationale: SIEM systems collect and centralize logs from various sources, then
correlate events to identify patterns indicative of security incidents, providing
real-time alerting and forensic analysis.
2|Page
,5 A company wants to ensure that employees only have access to the data and
systems necessary for their job functions. Which principle is being applied?
a. Separation of duties
b. Privileged account management
c. Principle of least privilege
d. Mandatory access control
- Correct Answer- C
Rationale: The principle of least privilege states that users should be granted only
the minimum access required to perform their job functions, reducing the risk of
unauthorized access or damage.
6 Which type of malware self-replicates and spreads to other systems without
requiring user interaction?
a. Trojan horse
b. Worm
c. Ransomware
d. Spyware
- Correct Answer- B
Rationale: Worms are self-replicating malware that spread autonomously across
networks without needing user action, unlike Trojans which require user
execution.
7 During a risk assessment, an organization identifies a potential vulnerability in
its web server. The cost of implementing a fix is $50,000, and the estimated loss if
exploited is $200,000. What should the organization do?
a. Accept the risk
b. Transfer the risk
3|Page
, c. Mitigate the risk by implementing the fix
d. Avoid the risk by shutting down the server
- Correct Answer- C
Rationale: Since the cost of mitigation ($50,000) is significantly less than the
potential loss ($200,000), implementing the fix (mitigation) is the most cost-
effective risk treatment.
8 What is the primary purpose of a firewall in a network architecture?
a. To detect and remove malware from endpoints
b. To monitor and control incoming and outgoing network traffic based on
predetermined security rules
c. To encrypt all data transmitted over the network
d. To provide backup and disaster recovery services
- Correct Answer- B
Rationale: A firewall acts as a network security system that monitors and filters
traffic based on rules, blocking unauthorized access while permitting legitimate
communication.
9 Which of the following is a symmetric encryption algorithm?
a. RSA
b. ECC
c. AES
d. DSA
- Correct Answer- C
4|Page
CYBERSECURITY (CC) EXAM PREP WITH COMPLETE 450 REAL
EXAM QUESTIONS AND CORRECT DETAILED ANSWERS
(VERIFIED ANSWERS) ALREADY GRADED A+ (MOST
RECENT!)LATEST UPDATE 2026/2027
1 Which of the following best describes the purpose of the ISC2 Code of Ethics?
a. To provide legal prosecution for cybersecurity professionals
b. To establish mandatory technical standards for all security tools
c. To set professional standards of conduct and guide ethical decision-making for
certified members
d. To create a global certification fee structure
- Correct Answer- C
Rationale: The ISC2 Code of Ethics establishes professional standards of conduct
to guide certified members in making ethical decisions, prioritizing the protection
of society, the common good, necessary public trust, and the infrastructure.
2 A security analyst is reviewing access logs and notices multiple failed login
attempts followed by a successful login from the same IP address. Which type of
attack is most likely occurring?
a. Man-in-the-middle attack
b. Denial-of-service attack
c. Brute force or password spraying attack
d. SQL injection attack
- Correct Answer- C
1|Page
,Rationale: Multiple failed login attempts followed by a successful login indicates
an attacker attempting to guess passwords (brute force) or testing common
passwords across many accounts (password spraying).
3 Which access control model uses security labels (e.g., Top Secret, Secret,
Confidential) to control access based on a subject's clearance level?
a. Discretionary Access Control (DAC)
b. Role-Based Access Control (RBAC)
c. Mandatory Access Control (MAC)
d. Attribute-Based Access Control (ABAC)
- Correct Answer- C
Rationale: MAC uses predefined security labels and clearance levels. The system
enforces access based on these labels, and users cannot change permissions.
4 What is the primary purpose of a security information and event management
(SIEM) system?
a. To block malicious network traffic in real time
b. To aggregate, correlate, and analyze log data from multiple sources to detect
security incidents
c. To encrypt all data stored on a network
d. To manage user passwords and credentials
- Correct Answer- B
Rationale: SIEM systems collect and centralize logs from various sources, then
correlate events to identify patterns indicative of security incidents, providing
real-time alerting and forensic analysis.
2|Page
,5 A company wants to ensure that employees only have access to the data and
systems necessary for their job functions. Which principle is being applied?
a. Separation of duties
b. Privileged account management
c. Principle of least privilege
d. Mandatory access control
- Correct Answer- C
Rationale: The principle of least privilege states that users should be granted only
the minimum access required to perform their job functions, reducing the risk of
unauthorized access or damage.
6 Which type of malware self-replicates and spreads to other systems without
requiring user interaction?
a. Trojan horse
b. Worm
c. Ransomware
d. Spyware
- Correct Answer- B
Rationale: Worms are self-replicating malware that spread autonomously across
networks without needing user action, unlike Trojans which require user
execution.
7 During a risk assessment, an organization identifies a potential vulnerability in
its web server. The cost of implementing a fix is $50,000, and the estimated loss if
exploited is $200,000. What should the organization do?
a. Accept the risk
b. Transfer the risk
3|Page
, c. Mitigate the risk by implementing the fix
d. Avoid the risk by shutting down the server
- Correct Answer- C
Rationale: Since the cost of mitigation ($50,000) is significantly less than the
potential loss ($200,000), implementing the fix (mitigation) is the most cost-
effective risk treatment.
8 What is the primary purpose of a firewall in a network architecture?
a. To detect and remove malware from endpoints
b. To monitor and control incoming and outgoing network traffic based on
predetermined security rules
c. To encrypt all data transmitted over the network
d. To provide backup and disaster recovery services
- Correct Answer- B
Rationale: A firewall acts as a network security system that monitors and filters
traffic based on rules, blocking unauthorized access while permitting legitimate
communication.
9 Which of the following is a symmetric encryption algorithm?
a. RSA
b. ECC
c. AES
d. DSA
- Correct Answer- C
4|Page
