A Company Runs an Application That Uses Multiple Amazon EC2

question 176

Multiple Choice

A company runs an application that uses multiple Amazon EC2 instances to gather data from its users. The data is then processed and transferred to Amazon S3 for long-term storage. A review of the application shows that there were long periods of time when the EC2 instances were not being used. A solutions architect needs to design a solution that optimizes utilization and reduces costs. Which solution meets these requirements?

• A) Use Amazon EC2 in an Auto Scaling group with On-Demand instances.
• B) Build the application to use Amazon Lightsail with On-Demand Instances.
• C) Create an Amazon CloudWatch cron job to automatically stop the EC2 instances when there is no activity.
• D) Redesign the application to use an event-driven design with Amazon Simple Queue Service (Amazon SQS) and AWS Lambda.

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Definitions:

Cognition

The act of comprehension and learning achieved through mental engagement, life experiences, and sensory input.

Out of Character

Behavior that is not typical for a person, deviating from how they usually act or are expected to behave.

Macular Degeneration

A medical condition that results in blurred or no vision in the center of the visual field due to damage to the macula of the retina.

Central Vision

The section of our vision that is responsible for sharp, detailed, and straight-ahead vision.