Global Customer Support Interview Questions

2,809 global customer support interview questions shared by candidates

You’re in a room with three light switches, each of which controls one of three light bulbs in the next room. Your task is to determine which switch controls which bulb. All lights are initially off, and you can't see into one room from the other. You may inspect the room only once. How can you determine which switch is connected to which light bulb?
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Global Customer Support Representative

Interviewed at LinkedIn

3.8
Jan 7, 2012

You’re in a room with three light switches, each of which controls one of three light bulbs in the next room. Your task is to determine which switch controls which bulb. All lights are initially off, and you can't see into one room from the other. You may inspect the room only once. How can you determine which switch is connected to which light bulb?

You have a stick of length 1, and you break it at a (uniformly) random position along its length. Take the longer of the two resulting sticks, and break it somewhere randomly along its length. What is the probability that you can make a triangle out of the three pieces?
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IMD - Global Strat

Interviewed at Goldman Sachs

3.7
May 21, 2012

You have a stick of length 1, and you break it at a (uniformly) random position along its length. Take the longer of the two resulting sticks, and break it somewhere randomly along its length. What is the probability that you can make a triangle out of the three pieces?

This wasn't really difficult, just different than some of the other questions: You have a black box with no distinguishing marks on it. The only input/output is an ethernet port. How would you determine what is running on the box?
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GLOBAL NETWORK VULNERABILITY ANALYST

Interviewed at National Security Agency

3.7
Oct 7, 2014

This wasn't really difficult, just different than some of the other questions: You have a black box with no distinguishing marks on it. The only input/output is an ethernet port. How would you determine what is running on the box?

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