- A
Use Amazon EventBridge for event-driven integration.
EventBridge decouples event producers and consumers.
- B
Use AWS Direct Connect for private connectivity.
Why wrong: Direct Connect is for on-premises to AWS connectivity.
- C
Use Amazon SNS topics for pub/sub messaging.
SNS enables one-to-many decoupling.
- D
Use Amazon SQS queues between services.
SQS decouples services by buffering messages.
- E
Use Elastic Load Balancing to distribute traffic.
Why wrong: ELB distributes traffic but does not decouple services.
Question 1,476 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. Read the scenario carefully and evaluate each option against the stated constraints before committing to an answer. 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 THREE design patterns are recommended for decoupling components in a microservices architecture on AWS?
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
✓
Use Amazon EventBridge for event-driven integration.
Option A is correct because Amazon EventBridge provides a fully managed event bus that decouples microservices by enabling event-driven communication. Services publish events to EventBridge, which then routes them to appropriate consumers based on rules, eliminating direct dependencies between producers and consumers.
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.
- ✓
Use Amazon EventBridge for event-driven integration.
Why this is correct
EventBridge decouples event producers and consumers.
Related concept
Read the scenario before looking for a memorised answer.
- ✗
Use AWS Direct Connect for private connectivity.
Why it's wrong here
Direct Connect is for on-premises to AWS connectivity.
- ✓
Use Amazon SNS topics for pub/sub messaging.
Why this is correct
SNS enables one-to-many decoupling.
Related concept
Read the scenario before looking for a memorised answer.
- ✓
Use Amazon SQS queues between services.
Why this is correct
SQS decouples services by buffering messages.
Related concept
Read the scenario before looking for a memorised answer.
- ✗
Use Elastic Load Balancing to distribute traffic.
Why it's wrong here
ELB distributes traffic but does not decouple services.
Common exam traps
Common exam trap: answer the scenario, not the keyword
The trap here is that candidates may confuse network connectivity solutions (Direct Connect) or load balancing (ELB) with true decoupling patterns, but decoupling in microservices requires asynchronous, event-driven or message-based integration, not synchronous request/response or network links.
Detailed technical explanation
How to think about this question
EventBridge uses a default event bus and custom event buses with rules that filter events based on JSON content, allowing fine-grained routing without polling. Under the hood, EventBridge supports schema registry and archive/replay capabilities, which enable decoupled, durable event delivery with at-least-once semantics. In a real-world scenario, an order service can emit an 'OrderPlaced' event to EventBridge, and separate inventory, billing, and notification services consume it independently without knowing each other.
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 cloud solutions architect for a retail company is evaluating services for a new workload. The correct answer here reflects best practice for the specific scenario described — not a general cloud recommendation. Answer the scenario, not the keyword: identify the specific constraint before choosing the most familiar-sounding option. Cloud exam questions reward reading the constraint carefully: the same technology can be right or wrong depending on the use case.
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.
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Design Solutions for Organizational Complexity — study guide chapter
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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 — Read the scenario before looking for a memorised answer..
What is the correct answer to this question?
The correct answer is: Use Amazon EventBridge for event-driven integration. — Option A is correct because Amazon EventBridge provides a fully managed event bus that decouples microservices by enabling event-driven communication. Services publish events to EventBridge, which then routes them to appropriate consumers based on rules, eliminating direct dependencies between producers and consumers.
What should I do if I get this SAP-C02 question wrong?
Identify which exam domain this question belongs to, review the core concept, then practise similar questions from the same domain.
What is the key concept behind this question?
Read the scenario before looking for a memorised answer.
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Last reviewed: Jul 4, 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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