AWS Solutions Architect Associate Practice Test

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Study for the AWS Solutions Architect Associate Test. Our comprehensive quiz offers multiple-choice questions that replicate the exam environment. Benefit from detailed explanations and hints. Prepare confidently for your AWS certification exam!

Each practice test/flash card set has 50 randomly selected questions from a bank of over 500. You'll get a new set of questions each time!

Practice this question and more.

What service in AWS can be used for event-driven computing?

AWS Lambda
AWS EC2
AWS S3
AWS RDS

The correct answer is: AWS Lambda

AWS Lambda is a serverless compute service designed specifically for event-driven computing. It allows developers to run code in response to events without managing servers. This service automatically scales based on the number of events that trigger the function, making it an ideal choice for applications that require real-time data processing or automation. When an event occurs—such as changes to data in an Amazon S3 bucket, updates to a DynamoDB table, changes in state in an AWS IoT device, or scheduled events through Amazon CloudWatch—Lambda can automatically run the associated code. This event-driven model enables efficient use of resources and cost-effectiveness, as you only pay for the compute time consumed during these executions. In contrast, other services such as Amazon EC2 do not operate on an event-driven architecture inherently; they provide compute resources that require management and scaling on the user's part. AWS S3 serves primarily as a storage solution and while it can send events to trigger Lambda functions, it is not an event-driven computing service itself. Similarly, Amazon RDS, which is intended for relational database management, does not offer event-driven compute capabilities but focuses on data storage, retrieval, and management.