The answer is role-based access control (RBAC) and need-to-know. RBAC is fundamental to the principle of least privilege because it maps permissions to specific job functions rather than individuals, ensuring users only receive access necessary for their role. Need-to-know complements this by restricting access to data strictly required for a task, enforcing granular control over information exposure. On the Cisco CyberOps Associate 200-201 exam, this concept tests your understanding of how access policies prevent privilege creep and data breaches; a common trap is confusing need-to-know with need-to-use, where the latter implies active usage rather than mere authorization. Remember the mnemonic "R-N-K" for Role, Need-to-Know—if a user lacks the role or the need, they lack the access.
200-201 Security Concepts Practice Question
This 200-201 practice question tests your understanding of security concepts. 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.
Which TWO security concepts are fundamental to the principle of least privilege? (Choose two.)
Clue words in this question
Noticing these words before you look at the options changes how you read each choice.
Clue: "least"
Why it matters: You want the option with minimum overhead, fewest steps, or lowest impact — not the most feature-rich or comprehensive answer.
Answer the question above first, then reveal the full breakdown to understand why each option is right or wrong.
Correct answer & explanation
✓
Role-based access control (RBAC)
Role-based access control (RBAC) is fundamental to the principle of least privilege because it assigns permissions based on job functions rather than individual users, ensuring users receive only the access necessary for their roles. The 'need-to-know' concept restricts access to information strictly required for a user's tasks, directly enforcing least privilege by limiting data exposure. Together, RBAC provides a scalable framework for access management, while need-to-know ensures granular data-level control.
Key principle: Answer the scenario, not the keyword: identify the specific constraint before choosing the most familiar-sounding option.
Answer analysis
Option-by-option breakdown
For each option: why learners choose it and why it is or isn't the right answer here.
✓
Role-based access control (RBAC)
Why this is correct
RBAC implements least privilege by assigning permissions to roles.
Clue confirmation
The clue word "least" in the question point toward this answer.
Related concept
Read the scenario before looking for a memorised answer.
✗
Mandatory access control (MAC)
Why it's wrong here
MAC is system-enforced, not directly about limiting to minimum.
✓
Need-to-know
Why this is correct
Need-to-know restricts access to data required for tasks.
Clue confirmation
The clue word "least" in the question point toward this answer.
Related concept
Read the scenario before looking for a memorised answer.
✗
Separation of duties
Why it's wrong here
Separation of duties prevents fraud, not directly least privilege.
✗
Defense in depth
Why it's wrong here
Defense in depth uses multiple layers, not directly about access minimization.
Common exam traps
Common exam trap: answer the scenario, not the keyword
Cisco often tests the distinction between 'need-to-know' (a least privilege concept) and 'separation of duties' (a fraud-prevention concept), causing candidates to mistakenly select separation of duties because both involve limiting access, but only need-to-know directly enforces least privilege.
Detailed technical explanation
How to think about this question
Under the hood, RBAC maps users to roles via role hierarchies and permissions in systems like Microsoft Active Directory or Cisco ISE, using standards such as NIST RBAC (INCITS 359). Need-to-know is often implemented through attribute-based access control (ABAC) or mandatory access controls (MAC) in classified environments, where a user's clearance alone does not grant access unless the specific data is required for their task. In a real-world scenario, a network administrator might have RBAC-based access to router configs but need-to-know would block viewing HR payroll files stored on the same server.
KKey Concepts to Remember
Read the scenario before looking for a memorised answer.
Find the constraint that changes the correct option.
Eliminate answers that are true in general but not in this case.
TExam Day Tips
→Watch for words such as best, first, most likely and least administrative effort.
→Review why wrong options are wrong, not only why the correct option is correct.
Key takeaway
Answer the scenario, not the keyword: identify the specific constraint before choosing the most familiar-sounding option.
Real-world example
How this comes up in practice
A junior network technician can log in to a core router but cannot reach the enable prompt or configuration mode. The AAA server is authenticating the login — but the authorisation policy only grants privilege level 1, not 15. Authentication (who you are) is working; authorisation (what you can do) is not.
What to study next
Got this wrong? Here's your next step.
Identify which exam domain this question belongs to, review the core concept, then practise similar questions from the same domain.
Security Concepts — This question tests Security Concepts — Read the scenario before looking for a memorised answer..
What is the correct answer to this question?
The correct answer is: Role-based access control (RBAC) — Role-based access control (RBAC) is fundamental to the principle of least privilege because it assigns permissions based on job functions rather than individual users, ensuring users receive only the access necessary for their roles. The 'need-to-know' concept restricts access to information strictly required for a user's tasks, directly enforcing least privilege by limiting data exposure. Together, RBAC provides a scalable framework for access management, while need-to-know ensures granular data-level control.
What should I do if I get this 200-201 question wrong?
Identify which exam domain this question belongs to, review the core concept, then practise similar questions from the same domain.
Are there clue words in this question I should notice?
Yes — watch for: "least". You want the option with minimum overhead, fewest steps, or lowest impact — not the most feature-rich or comprehensive answer.
What is the key concept behind this question?
Read the scenario before looking for a memorised answer.
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Question Discussion
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