A Company Has an Application with a REST-Based Interface That

question 559

Multiple Choice

A company has an application with a REST-based interface that allows data to be received in near-real time from a third-party vendor. Once received, the application processes and stores the data for further analysis. The application is running on Amazon EC2 instances. The third-party vendor has received many 503 Service Unavailable Errors when sending data to the application. When the data volume spikes, the compute capacity reaches its maximum limit and the application is unable to process all requests. Which design should a solutions architect recommend to provide a more scalable solution?

• A) Use Amazon Kinesis Data Streams to ingest the data. Process the data using AWS Lambda functions.
• B) Use Amazon API Gateway on top of the existing application. Create a usage plan with a quota limit for the third-party vendor.
• C) Use Amazon Simple Notification Service (Amazon SNS) to ingest the data. Put the EC2 instances in an Auto Scaling group behind an Application Load Balancer.
• D) Repackage the application as a container. Deploy the application using Amazon Elastic Container Service (Amazon ECS) using the EC2 launch type with an Auto Scaling group.

Understand the impact of elasticity on business and economic decisions, including pricing strategies and revenue considerations.

Differentiate between movements along the demand curve and shifts of the demand curve.

Recognize the implications of elasticity for government policies and public sector economics.

Understand how the concept of elasticity applies to both demand and supply in different market scenarios.

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Definitions:

Installed Version

The specific iteration of a software program currently set up and operational on a computer or device.

Word Processing Program

A software application used to create, edit, format, and print text documents.

Temporary Storage

Memory or space in a computer or device used for storing data temporarily during processing tasks.