ElastiCache Quiz

What you'll be asked

1. Which of the following best describes the primary purpose of using Amazon ElastiCache in a web application architecture?
2. When configuring an Amazon ElastiCache for Redis cluster, which feature should you enable to ensure high availability if a primary node fails?
3. A developer wants to implement a caching strategy where the application first checks the cache, and if the data is missing, the application fetches it from the database and updates the cache. What is this pattern called?
4. Your application experiences a sudden spike in traffic, causing the ElastiCache cluster to reach its memory limit. Which mechanism does Redis use to manage memory when the limit is reached?
5. An application uses a Redis cluster with multiple shards. If you need to scale the write throughput of your ElastiCache environment, which action is required?

Answers and explanations come after you submit.