A company is migrating a large, monolithic database to AWS. The database is highly transactional and requires sub-millisecond latency for read operations. The data model is highly relational and cannot be refactored into NoSQL. Which caching strategy should be implemented to meet the performance requirements?

Answer options:

Migrate the database to Amazon DynamoDB and use DynamoDB Accelerator (DAX).

Implement Amazon ElastiCache for Redis in front of Amazon RDS.

Use Amazon CloudFront to cache the database queries.

Enable Amazon RDS Multi-AZ deployments.

How to approach this question

Match 'relational database' and 'sub-millisecond read latency' to ElastiCache.

Full Answer

B.Implement Amazon ElastiCache for Redis in front of Amazon RDS.✓ Correct

Amazon ElastiCache (Redis or Memcached) is an in-memory caching service that sits in front of relational databases like RDS to provide sub-millisecond read latency for frequently accessed data.

Common mistakes

Choosing DAX, which is only for DynamoDB (NoSQL).

Question 40 All questions Question 42

Practice the full AWS Solutions Architect Professional SAP-C02 Practice Exam 1

75 questions · hints · full answers · grading

More questions from this exam

Q01An enterprise has 50 VPCs across two AWS Regions. They need to establish transitive routing betwe...Hard Q02A company uses AWS Organizations. The security team wants to ensure that no IAM user or role can ...Medium Q03An application requires a relational database with an RPO of 1 second and an RTO of less than 1 m...Hard Q04A company is setting up a new multi-account environment. They want to automate the provisioning o...Medium Q05An organization wants to allocate AWS costs to specific business units. They use AWS Organization...Hard

View all 75 questions →