- A
Use separate VPCs within the same account.
Why wrong: VPCs can still be accessed if IAM permissions allow.
- B
Use IAM policies to restrict access per environment.
Why wrong: IAM alone cannot prevent resource access within same account.
- C
Create separate AWS accounts for each environment using AWS Organizations.
Accounts provide strong isolation boundaries.
- D
Use resource tagging to separate environments.
Why wrong: Tags do not enforce isolation.
Question 1,475 of 1,746
SAP-C02 Practice Question: Design Solutions for Organizational Complexity
This SAP-C02 practice question tests your understanding of design solutions for organizational complexity. The scenario asks you to isolate a root cause — eliminate options that address a different problem before choosing. 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 startup is using a single AWS account for development, testing, and production. They want to isolate environments and improve security. What is the most aligned AWS best practice?
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 choices
Why each option matters
Answer the question above first, then reveal the full breakdown to understand why each option is right or wrong.
Correct answer & explanation
✓
Create separate AWS accounts for each environment using AWS Organizations.
Creating separate AWS accounts via AWS Organizations (Option C) is the recommended best practice for isolating environments and enhancing security. This approach provides strong logical and billing separation, aligns with the AWS Well-Architected Framework's security pillar, and minimizes blast radius. Option A (separate VPCs) does not fully isolate because all resources still reside in the same account, sharing service quotas and increasing risk. Option B (IAM policies) alone cannot prevent cross-environment access at the network or resource level. Option D (resource tagging) only aids in organization, not isolation.
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 separate VPCs within the same account.
Why it's wrong here
VPCs can still be accessed if IAM permissions allow.
- ✗
Use IAM policies to restrict access per environment.
Why it's wrong here
IAM alone cannot prevent resource access within same account.
- ✓
Create separate AWS accounts for each environment using AWS Organizations.
Why this is correct
Accounts provide strong isolation boundaries.
Clue confirmation
The clue word "best" in the question point toward this answer.
Related concept
Authentication checks who the user is.
- ✗
Use resource tagging to separate environments.
Why it's wrong here
Tags do not enforce isolation.
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 startup's cloud architect reviews their monthly bill and notices costs are higher than expected for a long-running batch job. Switching from on-demand instances to Reserved Instances — or using Spot/Preemptible VMs — can reduce compute costs by up to 72 %. Questions like this test whether you understand the tradeoffs between commitment, flexibility, and cost across cloud pricing models.
Quick reference
AAA Protocol Comparison
| Protocol | Port(s) | Encryption | Transport | Primary Use |
|---|---|---|---|---|
| RADIUS | 1812 / 1813 | Password only | UDP | Network access control |
| TACACS+ | 49 | Full packet | TCP | Device administration |
| Diameter | 3868 | Full session | TCP / SCTP | Carrier / mobile networks |
| 802.1X | — | EAP-based | Layer 2 | Port-based access control |
TACACS+ encrypts the entire packet; RADIUS only encrypts the password field — a key exam distinction.
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 SAP-C02 questions on access control and AAA configuration.
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Design Solutions for Organizational Complexity — study guide chapter
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Design Solutions for Organizational Complexity practice questions
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FAQ
Questions learners often ask
What does this SAP-C02 question test?
Design Solutions for Organizational Complexity — This question tests Design Solutions for Organizational Complexity — Authentication checks who the user is..
What is the correct answer to this question?
The correct answer is: Create separate AWS accounts for each environment using AWS Organizations. — Creating separate AWS accounts via AWS Organizations (Option C) is the recommended best practice for isolating environments and enhancing security. This approach provides strong logical and billing separation, aligns with the AWS Well-Architected Framework's security pillar, and minimizes blast radius. Option A (separate VPCs) does not fully isolate because all resources still reside in the same account, sharing service quotas and increasing risk. Option B (IAM policies) alone cannot prevent cross-environment access at the network or resource level. Option D (resource tagging) only aids in organization, not isolation.
What should I do if I get this SAP-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 SAP-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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Last reviewed: Jun 20, 2026
This SAP-C02 practice question is part of Courseiva's free Amazon Web Services 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 SAP-C02 exam.
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