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AWS Application Integration and Messaging Flashcards

7 cards from real AWS practice questions. Tap to flip, then mark Knew It or Still Learning — missed cards come back until you master them.

Read the first 7 AWS Application Integration and Messaging flashcards as text

  1. Which Amazon API Gateway integration type passes the request body directly to the backend without any transformation?

    Answer: AWS_PROXY

    The AWS_PROXY (Lambda proxy) integration passes the entire request as-is to Lambda, with API Gateway not transforming the request or response.

  2. A company migrates from RabbitMQ to AWS and needs to maintain compatibility with AMQP protocols. Which AWS service is the best fit?

    Answer: Amazon MQ

    Amazon MQ is a managed message broker supporting ActiveMQ and RabbitMQ, providing compatibility with industry-standard protocols like AMQP, MQTT, and STOMP.

  3. What does the SQS visibility timeout control?

    Answer: How long a message is hidden from other consumers after being received

    The visibility timeout temporarily hides a message from other consumers while it is being processed, preventing duplicate processing.

  4. In AWS Step Functions, which state type is used to introduce a wait period before transitioning to the next state?

    Answer: Wait

    The Wait state in Step Functions pauses execution for a specified duration or until a specific timestamp before proceeding.

  5. Which Kinesis Data Streams feature allows multiple consumers to read from a stream simultaneously with enhanced throughput per consumer?

    Answer: Enhanced Fan-Out

    Kinesis Enhanced Fan-Out gives each registered consumer a dedicated 2 MB/s throughput per shard using HTTP/2 push, instead of sharing the 2 MB/s read limit.

  6. An SNS topic needs to filter messages so that an SQS queue only receives orders with 'status': 'URGENT'. Which SNS feature handles this?

    Answer: Subscription Filter Policy

    SNS Subscription Filter Policies allow you to define JSON attribute filters on a per-subscription basis so subscribers only receive matching messages.

  7. Which AWS AppSync feature enables clients to receive real-time updates when data changes in a GraphQL API?

    Answer: Subscriptions

    AppSync Subscriptions use WebSockets to push real-time data updates to connected clients when mutations occur that match the subscription.