Qa Director Interview Questions

46,558 qa director interview questions shared by candidates

A light bulb is hanging in a room. Outside of the room there are three switches, of which only one is connected to the lamp. In the starting situation, all switches are 'off' and the bulb is not lit. If it is allowed to check in the room only once to see if the bulb is lit or not (this is not visible from the outside), how can you determine with which of the three switches the light bulb can be switched on?
avatar

Senior QA Engineer

Interviewed at Akamai

4.3
Dec 24, 2011

A light bulb is hanging in a room. Outside of the room there are three switches, of which only one is connected to the lamp. In the starting situation, all switches are 'off' and the bulb is not lit. If it is allowed to check in the room only once to see if the bulb is lit or not (this is not visible from the outside), how can you determine with which of the three switches the light bulb can be switched on?

Viewing 2091 - 2100 interview questions

Glassdoor has 46,558 interview questions and reports from Qa director interviews. Prepare for your interview. Get hired. Love your job.