Associate test engineer interview questions shared by candidates
Asked to identify how many antennas are there in a cellphone
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Last interviewer had an event in which he had three light switches that each controlled three different light bulbs and my job was to find which switch went to which light bulb. The environment was that I was in a room in which I could not see the light bulbs unless I left the room but if I left the room I could not go back into it.
Second interviewer had a diagram of a common issue found in the lab. Issue consisted of laser being shot into 5 different mirrors and a tool that measures the laser's intensity. Problem was that one measurement was off but it did not affect the image at the end and I needed to find out the issue
Programming/OOP Basics including: What is an interface and how do you use it? What data structures can you list off the top of your head? How do you implement a hash map and how is it used? Public vs. Private vs. Protected? What is encapsulation and why not just use "private" to protect data? What is inheritance (give an example)? What is polymorphism (example)? What is method overloading & overriding? What is an example of a non-OOP language? What is the Agile methodology? What is Unit Testing? Explain all of these thoroughly.
Three brainteasers: You have a gold bar and you need to pay an employee once a day for a week. You can cut it twice only. How do you pay him each day of the week for all seven days? There are three barrels with fruit in them. One has strawberries, one has bananas, and the last has a mixture of both. They're all labeled incorrectly. How can you figure out which barrel contains which fruit with 100% certainty? You have 27 black socks, 18 dark gray socks, and 9 navy blue socks in a drawer. The room is completely dark and you cannot see anything. What is the least number of socks you need to grab to guarantee you have a pair of black or dark gray socks? You have ten bags of 100 gold coins and a scale. Nine of the bags have fools gold (which weigh 1.1g each coin), and the last bag is real gold (1g/coin). You can only weigh ONE TIME total. How do you find the real bag of gold with 100% certainty?
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