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Database Architect Interview Questions

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31 database architect interview questions shared by candidates

Puzzle "Three Light Bulbs & Switches in a Room": 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. You have one, and only one, opportunity to flip any of the external switches. After this, you can go into the room and look at the lights, but you may not touch the switches again. How can you tell which switch goes to which light?"
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Data Analyst (Database Architect)

Interviewed at Arizona Department of Corrections, Rehabilitation & Reentry

2.7★
20 Aug 2016

Puzzle "Three Light Bulbs & Switches in a Room": 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. You have one, and only one, opportunity to flip any of the external switches. After this, you can go into the room and look at the lights, but you may not touch the switches again. How can you tell which switch goes to which light?"

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