Quick Answer
The answer is least privilege. This principle is the correct choice because it dictates that users should be granted only the specific permissions necessary to perform their job functions, and nothing more. In identity management, this access control design minimizes the attack surface by ensuring that even if an account is compromised, the potential damage is strictly limited to that user’s essential resources. On the ISC2 Certified in Cybersecurity CC exam, this concept tests your understanding of foundational security controls; a common trap is confusing least privilege with separation of duties, which focuses on dividing tasks to prevent fraud rather than limiting access rights. To remember it, think of the “need-to-know” rule for data: if a user doesn’t need it to do their job, they shouldn’t have it.
This CC practice question tests your understanding of security principles. Match the stated requirement to the specific cloud service, access model, or configuration option — many options are valid in isolation but not for this scenario. After answering, compare your reasoning against the explanation and wrong-answer breakdown below. Once you have made your selection, read the full explanation to reinforce the concept and understand why each distractor is designed to mislead on exam day.
An organization is implementing a new identity management system. They want to ensure that users can only access resources necessary for their job roles. Which principle should guide the access control design?
Separation of duties
Why wrong: Separation of duties splits tasks, not access based on job role.
Least privilege
Least privilege grants only necessary access for job roles.
Need to know
Why wrong: Need to know is a part of least privilege but focuses on information, not all resources.
Defense in depth
Why wrong: Defense in depth is about multiple layers of security, not role-based access.
Answer choices
Answer the question above first, then reveal the full breakdown to understand why each option is right or wrong.
Correct answer & explanation
Least privilege
The principle of least privilege dictates that users should be granted only the permissions necessary to perform their job functions and nothing more. In an identity management system, this is implemented by assigning minimal access rights to resources, reducing the attack surface and limiting potential damage from compromised accounts. This directly aligns with the scenario of ensuring users can only access resources essential for their roles.
Key principle: Answer the scenario, not the keyword: identify the specific constraint before choosing the most familiar-sounding option.
Answer analysis
For each option: why learners choose it and why it is or isn't the right answer here.
Separation of duties
Why it's wrong here
Separation of duties splits tasks, not access based on job role.
Least privilege
Why this is correct
Least privilege grants only necessary access for job roles.
Related concept
Read the scenario before looking for a memorised answer.
Need to know
Why it's wrong here
Need to know is a part of least privilege but focuses on information, not all resources.
Defense in depth
Why it's wrong here
Defense in depth is about multiple layers of security, not role-based access.
Common exam traps
ISC2 often tests least privilege versus need to know, where candidates mistakenly choose need to know because it sounds more specific, but least privilege is the broader, correct principle for general access control design in identity management.
Detailed technical explanation
Under the hood, least privilege is enforced through Role-Based Access Control (RBAC) or Attribute-Based Access Control (ABAC) policies, where permissions are mapped to roles or attributes and evaluated at each access request. For example, in Microsoft Active Directory, a user in the 'Sales' group might have read/write access to the CRM database but no access to the HR payroll folder, implemented via ACLs. A real-world scenario is a cloud IAM policy where a developer is granted only 'ec2:DescribeInstances' and 's3:GetObject' on specific buckets, preventing accidental deletion or exposure of critical infrastructure.
Key takeaway
Answer the scenario, not the keyword: identify the specific constraint before choosing the most familiar-sounding option.
Real-world example
A security analyst at a medium-sized enterprise encounters this scenario during an investigation or architecture review. The correct answer reflects best practice for the specific threat or control described. Answer the scenario, not the keyword: identify the specific constraint before choosing the most familiar-sounding option. Security exam questions test whether you can match controls to threats in context — not just recall definitions.
What to study next
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FAQ
Security Principles — This question tests Security Principles — Read the scenario before looking for a memorised answer..
The correct answer is: Least privilege — The principle of least privilege dictates that users should be granted only the permissions necessary to perform their job functions and nothing more. In an identity management system, this is implemented by assigning minimal access rights to resources, reducing the attack surface and limiting potential damage from compromised accounts. This directly aligns with the scenario of ensuring users can only access resources essential for their roles.
Identify which exam domain this question belongs to, review the core concept, then practise similar questions from the same domain.
Read the scenario before looking for a memorised answer.
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Last reviewed: Jun 30, 2026
This CC practice question is part of Courseiva's free ISC2 certification practice question bank. Courseiva provides original exam-style practice questions with explanations, topic-based practice, mock exams, readiness tracking, and study analytics to help learners prepare for the CC exam.
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