Free Cloud Interview Guide to crush your next interview. Plus, real-world answers for cloud interviews, and system design from a top Solutions Architect at AWS.
Common Interview Question Candidates get Wrong: RTO and RPO
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Hello Reader, In today’s post, let’s look at another correct but average answer and a great answer that gets you hired to common cloud interview questions. Question - What is RTO and RPO? Common mistakes candidate make - they say RPO (Recovery Point Objective) is measured in unit of data, e.g. gigabyte, petabyte etc. Here is the right answer - Both RPO and RTO are measured in time. RTO stands for Recovery Time Objective and is a measure of how quickly after an outage an application must be available again. RPO, or Recovery Point Objective, refers to how much data loss your application can tolerate. Another way to think about RPO is how old can the data be when this application is recovered i.e. the time between the last backup and the disaster. Both RTO and RPO are measured in hours, minutes, or seconds, with lower numbers representing less downtime or less data loss. RPO and RTO can be and often have different values for an application. Delightful answer - After you explain RPO and RTO, you need to mention what are they used for. They are used to choose different DR options. The available DR strategies ordered by highest to lowest RTO/RPO (and lowest to highest cost) are:
This answer showcases that not only you understand the concept but also know why is this important, like a great Solutions Architect! If you get this question in your interview, make sure to knock it out of the park 🚀 If you have found this newsletter helpful, and want to support me 🙏: Checkout my bestselling courses on AWS, System Design, Kubernetes, DevOps, and more: Max discounted links
Keep learning and keep rocking 🚀, Raj |
Fast Track To Cloud
Free Cloud Interview Guide to crush your next interview. Plus, real-world answers for cloud interviews, and system design from a top Solutions Architect at AWS.
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