Technology Interview Questions | Glassdoor.co.uk

# Technology Interview Questions

3,006

technology interview questions shared by candidates

## Top Interview Questions

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### IT Role at IBM was asked...

13 Nov 2015

18 May 2014
 This question came up in the set venn diagram test. Out of 120 students, those with ID's that are even numbers are doing Physics, and all with ID's divisible by 5 are doing Chemistry, and all with ID's divisible by 7 are doing Maths. How many are doing Physics AND Maths? How many are doing Maths and Chemistry? How many are doing neither subject? etc..6 AnswersAssuming the ID's range from 1-120: Number of students taking Physics: 60 (there are 60 numbers between 1-120 that are divisible by 2) Chemistry: 24 (only 24 numbers between 1-120 that are divisible by 5) Maths: 17 Physics and Chemistry: 12 Physics and Maths: 8 Chemistry and Maths: 2 All three subjects: 1I got all the same expect Chemistry and Maths where i got the answer as 3. Could you please explain your working? ThanksI got the same & also 3 (not 2)Show more responsesThis last method is simpler, thanksHow you did that??? I'm so confused with all these maths. Any help??? One or more comments have been removed. Please see our Community Guidelines or Terms of Service for more information.

### Summer Analyst Technology at Goldman Sachs was asked...

13 Jan 2013
 Out of 25 horses, pick the fastest 3 horses. In each race, only 5 horses can run at the same time. What is the minimum number of races required?4 Answers5 racesYou need 7; first 5 races to determine ranking among groups of 5, then you can race the winners from each 5 group and that will give you the fastest one. Then to get 2nd and 3rd horse, you need one more race. So in total 7.I believe there are six. After you determine the fastest 5 out of the 25 you can just have one more race and choose ranking 1, 2, 3Show more responsesOnly 5. Becuase after 5 races, I have time performance of all 25 horses. I simply select the 3 best!

23 Apr 2015
 Why are you single?3 AnswersI'm afraid that's none of your business.Hi there. Thanks for the review. May I ask you to give me the verbatim questions you were asked, please? Especially the personal ones that you didn't mention? Moreover, how hard were the tests and were they any numerical ones?Sorry - is this a dating agency? I thought I was here for a job interview. My mistake...

4 Dec 2012
 How comfortable and willing are you to work within the Aladdin platform given the fact that it is build using tested and quite old systems that deliver well?3 AnswersThe best answer should include an explanation of the fact that in order to deploy new technology you need to first understand very well the current solution. Furthermore, you need to show how the company will benefit from the new platform as well as ensure that the reliability and quality is not affected by the transition.Two points to consider: 1. stability of platform 2. legacy code needed to be reused and analysed.Two points to consider: 1. stability of platform 2. legacy code needed to be reused and analysed.

### Senior IT Technician/IT Manager at Yoti was asked...

2 Sep 2017
 The wifi doesn't work properly. And for every basic test I could think of, they answered that it proved all was fine but still it didn't work.3 AnswersAt the end I said there are more important matters than a broken access point, I would just change it, with a different model and everybody could focus on their real job instead of wasting time (Don't answer that, they wanted someone as talented as themselves to manage their LAN)To be fair to the company, in this scenario it doesn't sound very much like the role was for you. I would totally expect a 'Senior IT Technician/Manager' to troubleshoot basic network problems and resolve them without swapping the hardware. Perhaps working in a technical networked environment is outside your current skillset.Nick, were you there to know what were my answers? It seems so, according to your certainty. I think my answers did troubleshoot basic network problems, as you said. But they wanted a specialist. In such roles, reliably and cost go above pride. You learn to put efficiency above time consuming pride when you are in charge of the whole IT. I installed hundreds of wifi AP in my careers, the answers I gave Yoti always were enough to provide really good service. At the end I said if I can't find, there's no point in wasting more time, Yoti is not a wifi provider and has more important tasks. Money matters, this role would include budget management. When I installed a wifi service for small companies, it worked for years. The next time I'll install one, I would learn for the latest standards: so much changes in 2 years. No need to be a wifi specialist for a small company, and it's easy to re-learn it when it becomes necessary, with updated literature. For your information, their solution was awful, I would never use it unless I'm bored at work and need time consuming tasks, which never exists when alone for the IT Administration of 170 colleagues. But if they like spending time on settings again and again, it's their business.

### Senior IT Technician/IT Manager at Yoti was asked...

2 Sep 2017
 take this pen and write the code in BASH to read a CSV file, take the 3rd column and print it in uppercases3 AnswersI didn't know by heart the functions for reading CSV files and uppercase. I said in Systems Administration, we don't write code everyday, our code works for months, even years. And it's not secure to write a script from scratch, since we can't think about everything before going back to the IT Support. I usually take a good script from the internet, read all of it, adapt what needs be.'I usually take a good script from the internet' does not sound like something somebody experienced in a command language would say. This exercise is extremely basic, one I would expect to find within the first few pages of a tutorial on learning bash with zero experience needed. Perhaps you should not put a command language on your CV if you are not confident in its most basic applications.You have totally the same spirit as them. Great. Never said they were wrong. I'm pretty sure of my skill with those language as my programs were always reliable and secure and even taught them for a few years at university. I simply dont need them on a daily basis when in charge for the IT. I'd remember more easily how to secure an OS for a job interview.

### IT Trainee at Johnson Matthey was asked...

14 Dec 2014
 Where in the periodic table, would you find elements with the largest atoms? 2 AnswersThis question caught me out as I didn't expect this as I haven't studied Chemistry for more than six years since GCSE level.I would agree for an IT job.... But as a chemist, yes. Bottom left corner. As expected, atoms become larger as you go down due to extra protons, neutrons, and electrons. However, many non-chemists do not realize that the atoms actually get smaller as you move across the row.

### Technology Analyst at Goldman Sachs was asked...

5 Nov 2012
 Unexpected question: Assume that you are the minister of transport, and you have to change UK's traffic from left hand side of the road to the right hand side. 2 AnswersNo right or wrong answer, only the reasoning and level of detail matterWhat was your annswer?

### Technology Analyst at Goldman Sachs was asked...

10 Dec 2014
 Given array of integers. Calculate the sum of differences between all elements or something like that.2 AnswersWrite the array as bit matrix, where each row is a binary notation of a number. Transpose this matrix. Add the differences of every row (they're easy to calculate when the array is a bunch of binary numbers).first sort the array, then calculate the difference between pairs: public int arrayDifference(int[] nums){ Arrays.sort(); int sum = 0; for(int i = nums.length-1; i>=0 ; i++) { sum + = nums[i]*i-nums[i]*(n-1-i); } return sum; }
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