A Company Has a Three-Tier Application Running on AWS with a Web

question 436

Multiple Choice

A company has a three-tier application running on AWS with a web server, an application server, and an Amazon RDS MySQL DB instance. A solutions architect is designing a disaster recovery (DR) solution with an RPO of 5 minutes. Which solution will meet the company's requirements?

• A) Configure AWS Backup to perform cross-Region backups of all servers every 5 minutes. Reprovision the three tiers in the DR Region from the backups using AWS CloudFormation in the event of a disaster.
• B) Maintain another running copy of the web and application server stack in the DR Region using AWS CloudFormation drift detection. Configure cross-Region snapshots of the DB instance to the DR Region every 5 minutes. In the event of a disaster, restore the DB instance using the snapshot in the DR Region.
• C) Use Amazon EC2 Image Builder to create and copy AMIs of the web and application server to both the primary and DR Regions. Create a cross-Region read replica of the DB instance in the DR Region. In the event of a disaster, promote the read replica to become the master and reprovision the servers with AWS CloudFormation using the AMIs.
• D) Create AMIs of the web and application servers in the DR Region. Use scheduled AWS Glue jobs to synchronize the DB instance with another DB instance in the DR Region. In the event of a disaster, switch to the DB instance in the DR Region and reprovision the servers with AWS CloudFormation using the AMIs.

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Definitions:

Equitable Distribution

The fair and just allocation of resources among members of a community or economy.

Cultural Revolution

The Cultural Revolution was a sociopolitical movement in China, initiated by Mao Zedong in 1966, aiming to preserve Chinese Communism by purging remnants of capitalist and traditional elements from Chinese society.

Great Leap Forward

A movement led by Mao Zedong in China between 1958 and 1962 aimed at rapidly transforming China into a socialist society through rapid industrialization and collectivization, which unfortunately led to widespread famine.

Central Planning

A system of economy in which all choices about the creation and allocation of goods and services are made by the government or a central body.