Scenarios & trade-offsMediumSDE-2

Your Redis cache node restarted during the evening peak. Within a minute, the database behind it hit 100% CPU and the whole site went down, even after Redis was back. Explain what happened and how you would prevent it.

Asked at

FlipkartMyntraSwiggy

Think first

Answer out loud as you would in the room — clarify, give numbers, name the trade-off — then compare with the model answer.

Go deeper

Saved on this device. Create a free account to keep it on every device.

Practise this with Sam

A real mock interview, out loud, with an honest scorecard. Free to start.