ElastiCache Design Patterns Quiz

5 questions Pass: 70% +25 pts (50 with Pro)

Quiz covering Performance Objectives

What you'll be asked

  1. Which ElastiCache caching strategy involves updating the cache immediately after a database write occurs?
  2. In a Lazy Loading pattern, what happens when an application requests data that is not currently in the cache?
  3. What is the primary benefit of implementing Time-to-Live (TTL) on cached items?
  4. When using the Write-behind (Write-back) caching pattern, what is the main trade-off regarding data integrity?
  5. You have a high-traffic e-commerce application using ElastiCache. You notice that a specific set of 'hot' product keys are frequently expired, leading to a 'thundering herd' effect where many requests hit the database simultaneously. Which strategy is most effective at mitigating this?

Answers and explanations come after you submit.