A Company Has a Three-Tier Image-Sharing Application

question 360

Multiple Choice

A company has a three-tier image-sharing application. It uses an Amazon EC2 instance for the front-end layer, another for the backend tier, and a third for the MySQL database. A solutions architect has been tasked with designing a solution that is highly available, and requires the least amount of changes to the application Which solution meets these requirements?

• A) Use Amazon S3 to host the front-end layer and AWS Lambda functions for the backend layer. Move the database to an Amazon DynamoDB table and use Amazon S3 to store and serve users' images.
• B) Use load-balanced Multi-AZ AWS Elastic Beanstalk environments for the front-end and backend layers. Move the database to an Amazon RDS instance with multiple read replicas to store and serve users' images.
• C) Use Amazon S3 to host the front-end layer and a fleet of Amazon EC2 instances in an Auto Scaling group for the backend layer. Move the database to a memory optimized instance type to store and serve users' images.
• D) Use load-balanced Multi-AZ AWS Elastic Beanstalk environments for the front-end and backend layers. Move the database to an Amazon RDS instance with a Multi-AZ deployment. Use Amazon S3 to store and serve users' images.

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Definitions:

Unadjusted Year End

The financial figures reported at the end of a fiscal year before any adjustments are made for accruals, deferrals, or other accounting entries.

Trial Balance

An accounting report that lists the balances of all ledgers accounts in order to verify that total debits equal total credits.

Factoring Arrangement Without Recourse

A financial transaction in which a business sells its receivables to a third party (a factor) at a discount, without the seller being responsible if the debtor fails to pay.

Loss on Sale of Receivables

A financial loss incurred when the sale price of accounts receivable is less than their carrying amount on the balance sheet.