Staff Engineer Interview Questions

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7. A windowless room contains three identical light fixtures, each containing an identical light bulb or light globe. Each light is connected to one of three switches outside of the room. Each bulb is switched off at present. You are outside the room, and the door is closed. Before opening the door you may play around with the light switches as many times as you like. But once you've opened the door, you may no longer touch a switch. After this, you go into the room and examine the lights. How can you tell which switch goes to which light?
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Staff Software Engineer

Interviewed at Rambus

3.9
Jun 8, 2019

7. A windowless room contains three identical light fixtures, each containing an identical light bulb or light globe. Each light is connected to one of three switches outside of the room. Each bulb is switched off at present. You are outside the room, and the door is closed. Before opening the door you may play around with the light switches as many times as you like. But once you've opened the door, you may no longer touch a switch. After this, you go into the room and examine the lights. How can you tell which switch goes to which light?

- hackathon were as per experience, java 7 or 8 can be used - first round was around basics of java, sql query, design pattern , spring etc - 2nd round was mostly about current project on white board and one code with explanation how to improve it
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Staff Engineer - Java

Interviewed at NCR Corporation

3.4
May 6, 2018

- hackathon were as per experience, java 7 or 8 can be used - first round was around basics of java, sql query, design pattern , spring etc - 2nd round was mostly about current project on white board and one code with explanation how to improve it

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