The correct answer is that enabling multi-factor authentication (MFA) for privileged users and enforcing a strong password policy are two valid AWS IAM security best practices. MFA adds a critical second layer of defense beyond a password, mitigating the risk of credential theft, while a password policy enforces complexity requirements such as minimum length and character types to resist brute-force attacks. On the AWS Certified Security Specialty SCS-C02 exam, this concept tests your understanding of the IAM pillar of the Shared Responsibility Model, often appearing in scenario-based questions where you must choose controls that reduce the attack surface. A common trap is confusing the root user’s limited use with a best practice—root should never be used for daily tasks, but MFA for privileged users is always recommended. Remember the mnemonic “PAM” for Password policy, Access keys (never shared), and MFA—these three form the core of IAM hardening.
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.
Which TWO of the following are valid AWS IAM security best practices?
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.
Answer the question above first, then reveal the full breakdown to understand why each option is right or wrong.
Correct answer & explanation
✓
Implement a strong password policy for IAM users.
Option A is correct: a password policy enforces complexity. Option D is correct: MFA adds an extra layer of security. Option B is wrong: access keys should not be shared. Option C is wrong: root user should be avoided for daily tasks. Option E is wrong: deleting users is not a best practice; deactivating is better.
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.
✓
Implement a strong password policy for IAM users.
Why this is correct
Password policies enforce complexity and rotation.
Clue confirmation
The clue word "best" in the question point toward this answer.
Related concept
Authentication checks who the user is.
✗
Share IAM user access keys among team members for convenience.
Why it's wrong here
Access keys should be individual and not shared.
✗
Delete IAM users instead of disabling them when not needed.
Why it's wrong here
Disabling is safer to preserve audit trails.
✓
Enable multi-factor authentication (MFA) for privileged users.
The clue word "best" in the question point toward this answer.
Related concept
Authentication checks who the user is.
✗
Use the AWS account root user for everyday administrative tasks.
Why it's wrong here
Root user should be used only for limited tasks.
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: Implement a strong password policy for IAM users. — Option A is correct: a password policy enforces complexity. Option D is correct: MFA adds an extra layer of security. Option B is wrong: access keys should not be shared. Option C is wrong: root user should be avoided for daily tasks. Option E is wrong: deleting users is not a best practice; deactivating is better.
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". 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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Question Discussion
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