The correct answer is to grant only the necessary permissions and use conditions in IAM policies to restrict access based on attributes like source IP or time. These two practices form the core of implementing least privilege access in AWS, as they ensure that permissions are both minimal and contextually scoped. Conditions, such as those using the `aws:SourceIp` or `aws:CurrentTime` keys, dynamically limit access to specific networks or time windows, preventing over-permission even when a policy grants broad actions. On the AWS Certified Security Specialty SCS-C02 exam, this topic tests your ability to distinguish between general IAM best practices and those specifically enforcing least privilege—a common trap is confusing group-based policy attachment (which is good for management, not least privilege) with granular, conditional controls. Remember the memory tip: “Grant minimal, then condition the kill—IP and time are your least-privilege thrill.”
SCS-C02 Management and Security Governance Practice Question
This SCS-C02 practice question tests your understanding of management and security governance. 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.
A company wants to implement a least-privilege access model for their AWS resources. Which TWO of the following are best practices for achieving this?
Clue words in this question
Noticing these words before you look at the options changes how you read each choice.
Clue: "best"
Why it matters: Signals that multiple options may be partially correct. Choose the option that most directly solves the exact problem described, not the one that sounds most complete.
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
✓
Grant permissions only for the specific actions required.
Option A is correct: granting only the necessary permissions is the core of least-privilege. Option D is correct: using conditions to restrict access based on attributes like IP or time. Option B is wrong because using a single role for all users violates least-privilege. Option C is wrong because attaching policies to groups is good, but not specifically for least-privilege. Option E is wrong because using managed policies alone does not ensure least-privilege.
Key principle: Authentication proves identity; authorization controls what that identity can do after login. Both must work for full privileged access.
Answer analysis
Option-by-option breakdown
For each option: why learners choose it and why it is or isn't the right answer here.
✗
Use a single IAM role for all users in the account.
Why it's wrong here
This grants too much access to all users.
✓
Grant permissions only for the specific actions required.
Why this is correct
This is the fundamental practice of least-privilege.
Clue confirmation
The clue words "best", "least" in the question point toward this answer.
Related concept
Authentication checks who the user is.
✗
Attach IAM policies to groups rather than individual users.
Why it's wrong here
This is a management best practice but not directly about least-privilege.
✓
Use conditions in IAM policies to restrict access based on attributes like source IP or time.
Why this is correct
Conditions help narrow down when permissions are applicable.
Clue confirmation
The clue words "best", "least" in the question point toward this answer.
Related concept
Authentication checks who the user is.
✗
Always use AWS managed policies instead of customer managed policies.
Why it's wrong here
Managed policies may grant more permissions than needed.
Common exam traps
Common exam trap: authentication is not authorization
Logging in proves the user can authenticate. It does not automatically mean the user is allowed to enter privileged or configuration mode. Watch for AAA authorization, privilege level and command authorization details.
Detailed technical explanation
How to think about this question
This kind of question is testing the difference between identity and permission. A user may successfully log in to a router because authentication is working, but still fail to enter configuration mode because authorization is missing, misconfigured or mapped to a lower privilege level.
KKey Concepts to Remember
Authentication checks who the user is.
Authorization controls what the user is allowed to do after login.
Privilege levels affect access to EXEC and configuration commands.
AAA, TACACS+ and RADIUS can separate login success from command access.
TExam Day Tips
→Do not assume successful login means full administrative access.
→Look for words such as cannot enter configuration mode, privilege level, authorization or command access.
→Separate login problems from permission problems before choosing the answer.
Key takeaway
Authentication proves identity; authorization controls what that identity can do after login. Both must work for full privileged access.
Real-world example
How this comes up in practice
A company's IT admin needs to give a contractor read-only access to production logs without sharing account credentials. Using role-based access control (RBAC) and temporary scoped permissions — not a permanent shared password — is the correct pattern. Questions like this test whether you can apply least-privilege access across cloud identity services.
What to study next
Got this wrong? Here's your next step.
Review Cisco AAA concepts — authentication, authorization, and accounting. Study privilege levels (0–15), command authorization under TACACS+, and how RADIUS differs. Then practise related SCS-C02 questions on access control and AAA configuration.
Management and Security Governance — This question tests Management and Security Governance — Authentication checks who the user is..
What is the correct answer to this question?
The correct answer is: Grant permissions only for the specific actions required. — Option A is correct: granting only the necessary permissions is the core of least-privilege. Option D is correct: using conditions to restrict access based on attributes like IP or time. Option B is wrong because using a single role for all users violates least-privilege. Option C is wrong because attaching policies to groups is good, but not specifically for least-privilege. Option E is wrong because using managed policies alone does not ensure least-privilege.
What should I do if I get this SCS-C02 question wrong?
Review Cisco AAA concepts — authentication, authorization, and accounting. Study privilege levels (0–15), command authorization under TACACS+, and how RADIUS differs. Then practise related SCS-C02 questions on access control and AAA configuration.
Are there clue words in this question I should notice?
Yes — watch for: "best", "least". Signals that multiple options may be partially correct. Choose the option that most directly solves the exact problem described, not the one that sounds most complete.
What is the key concept behind this question?
Authentication checks who the user is.
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