This DVA-C02 practice question tests your understanding of development with aws services. 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 AWS services can be used to send messages between microservices in a decoupled manner? (Choose two.)
Amazon SQS
Decouples components via message queues.
Amazon SNS
Pub/sub messaging for decoupling.
AWS Lambda
Why wrong: Compute service, not messaging.
Amazon MQ
Why wrong: Managed broker, but SQS/SNS are more common for decoupling.
Amazon Kinesis Data Streams
Why wrong: Designed for real-time data streaming, not simple messaging.
Answer choices
Answer the question above first, then reveal the full breakdown to understand why each option is right or wrong.
Correct answer & explanation
Amazon SQS
Option A (Amazon SQS) and Option B (Amazon SNS) are correct. SQS is a message queue, SNS is a pub/sub messaging service. Option C (Amazon Kinesis Data Streams) is for real-time streaming, not typically for simple messaging. Option D (AWS Lambda) is a compute service. Option E (Amazon MQ) is a managed message broker, but SQS and SNS are the primary decoupling services.
Key principle: Answer the scenario, not the keyword: identify the specific constraint before choosing the most familiar-sounding option.
Answer analysis
For each option: why learners choose it and why it is or isn't the right answer here.
Amazon SQS
Why this is correct
Decouples components via message queues.
Related concept
Read the scenario before looking for a memorised answer.
Amazon SNS
Why this is correct
Pub/sub messaging for decoupling.
Related concept
Read the scenario before looking for a memorised answer.
AWS Lambda
Why it's wrong here
Compute service, not messaging.
Amazon MQ
Why it's wrong here
Managed broker, but SQS/SNS are more common for decoupling.
Amazon Kinesis Data Streams
Why it's wrong here
Designed for real-time data streaming, not simple messaging.
Common exam traps
Many certification questions include familiar terms but test a specific constraint. Read the exact wording before choosing an answer that is generally true but wrong for this case.
Detailed technical explanation
This question should be treated as a scenario, not a definition check. Identify the problem, the constraint and the best action. Then compare each option against those facts.
Key takeaway
Answer the scenario, not the keyword: identify the specific constraint before choosing the most familiar-sounding option.
Real-world example
An e-commerce site experiences heavy traffic on Black Friday and near-zero traffic during off-peak weeks. Rather than provisioning permanent large VMs, the team uses auto-scaling groups that add capacity automatically under load and reduce it overnight. Questions like this test whether you understand elasticity, availability zones, and cloud compute scaling patterns.
What to study next
Identify which DVA-C02 exam domain this question belongs to, then review the specific concept being tested. Practise related questions in that domain and focus on understanding why each wrong answer is tempting — not just why the correct answer is right.
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FAQ
Development with AWS Services — This question tests Development with AWS Services — Read the scenario before looking for a memorised answer..
The correct answer is: Amazon SQS — Option A (Amazon SQS) and Option B (Amazon SNS) are correct. SQS is a message queue, SNS is a pub/sub messaging service. Option C (Amazon Kinesis Data Streams) is for real-time streaming, not typically for simple messaging. Option D (AWS Lambda) is a compute service. Option E (Amazon MQ) is a managed message broker, but SQS and SNS are the primary decoupling services.
Identify which DVA-C02 exam domain this question belongs to, then review the specific concept being tested. Practise related questions in that domain and focus on understanding why each wrong answer is tempting — not just why the correct answer is right.
Read the scenario before looking for a memorised answer.
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Last reviewed: Jun 20, 2026
This DVA-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 DVA-C02 exam.
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