📬 Amazon SQS - DVA-C02 Practice Questions

Master Simple Queue Service — standard vs FIFO queues, visibility timeout, dead-letter queues, long polling, message deduplication, and Lambda integration.

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2Exam Domains

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DVA-C02 SQS Question Bank (13 Questions)

Browse all 13 practice questions covering Amazon SQS for the DVA-C02 certification exam. Answers are intentionally hidden on this page so you can self-test first before checking results in quiz mode.

  1. Question 1Development with AWS Services

    A developer needs to ensure messages in an SQS queue are processed in strict FIFO order within a logical group. Which feature enables this?

    ASQS visibility timeout
    BSQS FIFO queue with MessageGroupId
    CSQS Standard queue with sequence numbers
    DSQS delay queues

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  2. Question 2Troubleshooting and Optimization

    A developer wants to alert when the DLQ for an SQS queue receives more than 10 messages in 5 minutes. Which CloudWatch metric should trigger the alarm?

    ASQS NumberOfMessagesSent on the main queue
    BSQS ApproximateNumberOfMessagesVisible on the DLQ
    CLambda Errors metric
    DSQS NumberOfMessagesDeleted on the DLQ

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  3. Question 3Troubleshooting and Optimization

    An application using SQS receives the same message multiple times even with a long visibility timeout. What is the MOST likely cause?

    AThe consumer is not deleting the message after processing
    BThe SQS queue is a FIFO queue
    CThe Dead Letter Queue is misconfigured
    DThe message has multiple copies

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  4. Question 4Troubleshooting and Optimization

    A Lambda function processes messages from an SQS queue. Messages are being processed multiple times, causing duplicate operations. Which approach prevents duplicate processing?

    AIncrease Lambda concurrency
    BSwitch to an SQS FIFO queue with exactly-once processing
    CEnable SQS long polling
    DDecrease the visibility timeout

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  5. Question 5Development with AWS Services

    A Lambda function needs to process messages from an SQS queue but should stop processing when the queue is empty. Which Lambda trigger behavior handles this automatically?

    ALambda polls the queue and scales down to zero when no messages are available
    BLambda uses long-polling and the event source mapping scales concurrency based on queue depth
    CLambda must be invoked manually when messages arrive
    DSQS sends a push notification to Lambda when messages are enqueued

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  6. Question 6Development with AWS Services

    A developer needs to ensure exactly-once processing of SQS messages. Which SQS queue type supports this natively?

    AStandard queue with visibility timeout
    BFIFO queue with content-based deduplication
    CStandard queue with dead-letter queue
    DFIFO queue without deduplication

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  7. Question 7Development with AWS Services

    A developer wants to fan out an SNS message to multiple SQS queues for parallel processing. What pattern achieves this?

    ASNS → Lambda → multiple SQS queues
    BSNS topic with multiple SQS queue subscriptions
    CSQS with multiple consumers
    DEventBridge rule with multiple targets

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  8. Question 8Deployment

    An Elastic Beanstalk application needs to run a worker process that periodically pulls tasks from an SQS queue. Which environment tier should be used?

    AWeb server tier
    BWorker tier
    CMulti-container Docker tier
    DSingle-instance tier

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  9. Question 9Troubleshooting and Optimization

    A developer wants to automatically scale Lambda concurrency based on SQS queue depth. What is the correct statement?

    ALambda auto-scales automatically based on the number of messages in the SQS queue when using event source mapping
    BThe developer must configure Application Auto Scaling for Lambda
    CLambda concurrency is fixed and cannot be auto-scaled
    DOnly FIFO queues support Lambda auto-scaling

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  10. Question 10Security

    A developer needs to grant time-limited access to an SQS queue for an external partner. Which is the BEST approach?

    AShare IAM user credentials
    BCreate a role with SQS permissions and allow the partner to assume it via their account
    CMake the SQS queue public
    DUse SQS queue URL sharing

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  11. Question 11Development with AWS Services

    A developer uses Amazon SQS FIFO. The application sends messages with the same MessageGroupId. How are these messages delivered?

    AIn random order
    BIn strict FIFO order within the group
    CIn parallel to multiple consumers
    DOnly the latest message is delivered

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  12. Question 12Deployment

    A developer uses CloudFormation to create a Lambda function. The function needs the ARN of an SQS queue created in the same stack. How should they reference it?

    AHardcode the SQS queue ARN
    BUse Fn::GetAtt: [MySQSQueue, Arn]
    CUse a CloudFormation Mapping
    DUse a Parameter for the SQS ARN

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  13. Question 13Deployment

    A developer uses SAM and wants to grant the Lambda function permission to read from an SQS queue. Which SAM feature simplifies this?

    AManually attach an IAM policy to the role
    BUse SAM Policy Templates (SQSPollerPolicy) in the function's Policies property
    CUse IAM managed policy AmazonSQSFullAccess
    DAdd an event source mapping only

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Key SQS Concepts for DVA-C02

sqsqueuefifostandardvisibility timeoutdead-letter queuedlqlong pollingdeduplicationmessage group

DVA-C02 SQS Exam Tips

Amazon SQS questions in DVA-C02 are typically scenario-based. Focus on application development patterns, event-driven integration, and secure coding on AWS. Priority concepts: sqs, queue, fifo, standard, visibility timeout, dead-letter queue.

What DVA-C02 Expects

  • Anchor your answer in select developer-friendly managed services and patterns that minimize custom undifferentiated code.
  • SQS scenarios for DVA-C02 are frequently mapped to Domain 1 (32%), Domain 4 (18%), so read the objective carefully before picking controls or architecture.
  • Expect multi-topic scenarios where SQS interacts with IAM, networking, storage, or observability patterns rather than appearing as an isolated question.
  • When two options are both technically valid, prefer the choice that best aligns with the exam's operational scope (Associate) and vendor best practices.

High-Value SQS Concepts

  • Know the core SQS building blocks cold: sqs, queue, fifo, standard.
  • Review the edge-case features and limits for visibility timeout, dead-letter queue; these details are commonly used to differentiate answer choices.
  • Practice service-integration reasoning: how SQS pairs with SNS, Lambda, Event-Driven Architecture in real deployment patterns.
  • For DVA-C02, explain why the chosen SQS design meets reliability, security, and cost expectations better than the alternatives.

Common DVA-C02 Traps

  • Watch for using infrastructure-centric answers instead of application-centric ones.
  • Questions in Development with AWS Services often include distractors that look correct for SQS but violate least-privilege, durability, or availability requirements.
  • Avoid picking options purely by feature name; validate data path, failure handling, and governance impact before answering.
  • If the prompt hints at automation or repeatability, eliminate manual-only operational answers first.

Fast Review Checklist

  • Can you compare at least two SQS implementation paths and justify which one best fits the scenario?
  • Can you map the chosen answer back to Development with AWS Services (32%) outcomes for DVA-C02?
  • Can you explain security and access boundaries for SQS without relying on default-open assumptions?
  • Can you describe how SQS integrates with SNS and Lambda during failure, scaling, and monitoring events?

Exam Domains Covering SQS

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