Quick Answer
The correct answer is to create individual users and assign only necessary permissions. This enforces the principle of least privilege by ensuring each user has exactly the permissions required for their role, nothing more. In AWS IAM, this means crafting granular policies that deny all access by default and explicitly allow only specific actions on specific resources. On the Systems Security Certified Practitioner SSCP exam, this concept tests your understanding of identity and access management controls, often appearing in scenario-based questions where a shared account or overly broad policy is a trap. A common distractor is granting full S3 access, which violates least privilege by providing excessive permissions. Remember the memory tip: "One user, one job, one policy" — each individual user should have a unique policy tied directly to their job function, avoiding shared credentials and root account usage at all costs.
This SSCP practice question tests your understanding of systems and application security. 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 uses AWS IAM to manage access. Which best practice ensures least privilege?
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.
Use a single shared admin account
Why wrong: Shared accounts lack accountability.
Use root account for administrative tasks
Why wrong: Root account should be avoided for daily tasks.
Create individual users and assign only necessary permissions
Individual users with minimal permissions enforce least privilege.
Grant all users full access to S3 buckets
Why wrong: Full access violates least privilege.
Answer choices
Answer the question above first, then reveal the full breakdown to understand why each option is right or wrong.
Correct answer & explanation
Create individual users and assign only necessary permissions
Creating individual users with only necessary permissions enforces least privilege. Using root account is dangerous. Shared accounts violate accountability. Granting full S3 access is excessive.
Key principle: Authentication proves identity; authorization controls what that identity can do after login. Both must work for full privileged access.
Answer analysis
For each option: why learners choose it and why it is or isn't the right answer here.
Use a single shared admin account
Why it's wrong here
Shared accounts lack accountability.
Use root account for administrative tasks
Why it's wrong here
Root account should be avoided for daily tasks.
Create individual users and assign only necessary permissions
Why this is correct
Individual users with minimal permissions enforce least privilege.
Clue confirmation
The clue words "best", "least" in the question point toward this answer.
Related concept
Authentication checks who the user is.
Grant all users full access to S3 buckets
Why it's wrong here
Full access violates least privilege.
Common exam traps
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
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.
Key takeaway
Authentication proves identity; authorization controls what that identity can do after login. Both must work for full privileged access.
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. Authentication proves identity; authorization controls what that identity can do after login. Both must work for full privileged access. Security exam questions test whether you can match controls to threats in context — not just recall definitions.
What to study next
Review Cisco AAA concepts — authentication, authorization, and accounting. Study privilege levels (0–15), command authorization under TACACS+, and how RADIUS differs. Then practise related SSCP questions on access control and AAA configuration.
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FAQ
Systems and Application Security — This question tests Systems and Application Security — Authentication checks who the user is..
The correct answer is: Create individual users and assign only necessary permissions — Creating individual users with only necessary permissions enforces least privilege. Using root account is dangerous. Shared accounts violate accountability. Granting full S3 access is excessive.
Review Cisco AAA concepts — authentication, authorization, and accounting. Study privilege levels (0–15), command authorization under TACACS+, and how RADIUS differs. Then practise related SSCP questions on access control and AAA configuration.
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.
Authentication checks who the user is.
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Last reviewed: Jun 24, 2026
This SSCP 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 SSCP exam.
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