Crucial Exams

AWS Certified Developer Associate DVA-C02 Practice Question

Given a situation where a developer must design an API that processes payment transactions, which of the following approaches BEST ensures that the API handles repeated submissions of the same transaction in an idempotent manner?

  • Store the state of each transaction in a database with enforced write locks to prevent concurrent writes.

  • Implement idempotent receipt tokens that must be submitted with each transaction.

  • Generate random transaction IDs for each submission and use these IDs to detect duplicates.

  • Use a stateless protocol that does not require server-side tracking of transaction states.

AWS Certified Developer Associate DVA-C02
Development with AWS Services
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