Software Development Engineer Interview Questions

33,200 software development engineer interview questions shared by candidates

I wasn't expecting they would ask me about the ECE part of my project. Although there was just backend working which was implemented by the server and I was fetching info through API, they expected me to know the backend part too.
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Software Development Engineer

Interviewed at Prodapt Solutions

3.5
Sep 28, 2024

I wasn't expecting they would ask me about the ECE part of my project. Although there was just backend working which was implemented by the server and I was fetching info through API, they expected me to know the backend part too.

There is a disk on a turn table. Half of it is black, and the other half is white. It is rotating in constant speed, but it's rotating fast so that you can't see whether it's going clockwise or counterclockwise. You also have a set of stationary sensors you can install anywhere which can tell whether the color of a spot has changed from black to white, or vice versa. What is the minimum number of sensors needed to find out which way the disk is rotating? What is the best, average, worst time to figure out the direction? If you use more sensors, can you improve the best, average, worst time? How can you accomplish that? If you are given only one sensor, how can you find out the direction, assuming you can change one constraint of the problem?
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Software Development Engineer

Interviewed at Microsoft

4
Sep 23, 2010

There is a disk on a turn table. Half of it is black, and the other half is white. It is rotating in constant speed, but it's rotating fast so that you can't see whether it's going clockwise or counterclockwise. You also have a set of stationary sensors you can install anywhere which can tell whether the color of a spot has changed from black to white, or vice versa. What is the minimum number of sensors needed to find out which way the disk is rotating? What is the best, average, worst time to figure out the direction? If you use more sensors, can you improve the best, average, worst time? How can you accomplish that? If you are given only one sensor, how can you find out the direction, assuming you can change one constraint of the problem?

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