System Design · Senior · Question 66 of 75

What do RPO and RTO mean in disaster recovery?

✓Correct answer: RPO: how much data (time) you can afford to lose; RTO: how long the service may be down before recovery
2Two backup formats
3Read and write performance objectives

Explanation

Lower values cost more: continuous replication and hot standby for minutes, periodic backups for hours.

Further reading

AWS: Disaster recovery objectives (RTO/RPO) ↗

Test yourself

Take the System Design · Senior quiz: questions and options are shuffled, and you get a review of your mistakes at the end.