Cache Invalidation Strategies Quiz

What you'll be asked

1. Which caching strategy involves updating the cache immediately after a database write occurs to ensure consistency?
2. In a Cache-aside pattern, what is the recommended sequence of operations when updating an existing record to minimize data inconsistency?
3. What is the primary risk associated with the 'Cache-aside' pattern if the system fails between the database update and the cache invalidation?
4. Which scenario is most appropriate for implementing a 'Write-behind' (or Write-back) caching strategy?
5. When using a 'Cache-aside' pattern with high concurrency, why is it safer to delete a cache key rather than updating the value directly?

Answers and explanations come after you submit.