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Software Development Engineer In De Test Interview Questions

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You are in a room with no windows and three light switches. Each single light switch is connected to one single and distinct incandescent light bulb in the opposite windowless room. There is no immediate way of telling which light switch is connected to which light bulb. You are allowed to enter the room with the light bulbs once and only once, and only after you are ready to make the determination. How can you determine which switch is connected to which bulb?
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Software Engineer In Test

Interviewed at Galileo Financial Technologies

4.4★
Mar 19, 2014

You are in a room with no windows and three light switches. Each single light switch is connected to one single and distinct incandescent light bulb in the opposite windowless room. There is no immediate way of telling which light switch is connected to which light bulb. You are allowed to enter the room with the light bulbs once and only once, and only after you are ready to make the determination. How can you determine which switch is connected to which bulb?

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