Real AWS Certified Developer - Associate practice questions with explanations that teach. Original and mapped to the official objectives. No exam dumps, ever. Answer a few, then find every gap for free.
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An e-commerce application publishes an "OrderPlaced" event whenever a customer checks out. Three independent microservices - inventory, invoicing, and analytics - must each receive and process EVERY order independently, and no order may be lost if one of the services is temporarily offline. Which design is BEST?
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A single Amazon SNS topic publishes many event types. One SQS subscriber must receive ONLY messages whose eventType attribute equals "PriceDrop", while other subscribers still receive everything. You want to minimize custom code and wasted invocations. What should you do?
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A developer must build an integration that reacts to events emitted by a third-party SaaS provider and routes each event to a different AWS Lambda function based on the JSON content of the event, with no polling. Which service is designed for this?
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A payment microservice must process transactions for each account in the exact order they were submitted, and it must never process the same transaction twice. Which Amazon SQS configuration BEST meets these requirements?
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An AWS Lambda function consumes messages from an Amazon SQS standard queue. Each message takes about 90 seconds to process, but downstream systems report that some messages are being processed twice. The queue's visibility timeout is set to 30 seconds. What is the MOST likely cause and correct fix?
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A real-time telemetry platform needs all of the following: strict ordering of records per device, several independent consumer applications that each read the same records, and the ability to replay the last 24 hours of data after a bug fix. Which service BEST fits?
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The free diagnostic scores you by domain so you know exactly what to practice for DVA-C02.
No. Every question is original, written to the official AWS Certified Developer - Associate exam objectives. We never use exam dumps or leaked questions, which violate certification agreements and can get candidates banned. The goal is to teach the concept the exam tests, not to memorize a specific item.
Are the DVA-C02 practice questions free?
Yes, these samples are free with no signup. The free readiness diagnostic then scores you across every domain so you know exactly which objectives to study first.
Do the questions come with explanations?
Yes. Every question includes an explanation that teaches the underlying concept and why the other options are wrong, so a practice set actually moves your score.
Will practice questions get me DVA-C02-ready?
Practice is one part. Combine it with the diagnostic (to find your gaps) and timed mock exams (to test pacing), then use your readiness score to decide when to book. Walk in prepared, not hopeful.