Databases · Middle · Question 60 of 75
What is a read replica used for?
- 1Accepting writes when the primary is busy
- ✓Correct answer: Serving read queries (reports, heavy reads) from a copy of the primary to offload it
- 3Storing backups only
Explanation
Replicas usually lag a bit behind. Reading your own write from a replica right after writing may return old data.