Site Reliability Engineer Interview Questions

2,640 site reliability engineer interview questions shared by candidates

is it advisable to use both Horizontal Pod Autoscaler (HPA) and Vertical Pod Autoscaler (VPA) on the same application? If yes, what are the possible consequences of doing so? And what kind of challenges or unexpected behaviours might occur when both are applied on the same pod?
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Site Reliability Engineer II

Interviewed at Zeta

3.4
Jul 25, 2025

is it advisable to use both Horizontal Pod Autoscaler (HPA) and Vertical Pod Autoscaler (VPA) on the same application? If yes, what are the possible consequences of doing so? And what kind of challenges or unexpected behaviours might occur when both are applied on the same pod?

Some basic questions about SQL. How would I get a number of records in a table? What are indices for and why not to put them on all of the columns? Does indices take up any space in the database? How would I find out about slow queries?
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Senior Site Reliability Engineer

Interviewed at Barclays

3.9
Oct 29, 2024

Some basic questions about SQL. How would I get a number of records in a table? What are indices for and why not to put them on all of the columns? Does indices take up any space in the database? How would I find out about slow queries?

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