The whole process, from application to offer, took two weeks.

The interview process involved a 30-minute phone interview and a one-hour interview with three managers.

The phone interview was a mixture of behavioural and technical questions.

Technical questions covered diodes, transistors, and some boolean logic.

The final interview was mostly technical with some behavioural questions.

Technical questions again focused on diodes, transistors, and boolean logic.

You are outside a room with three light switches.

Through a door, there are three light bulbs, each connected to one of the three switches.

You can only enter the room once.

How can you figure out which switch corresponds to each light bulb?