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Computer Hardware & Software interview questions

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Interview Questions

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An array of 99 elements contains integers from 1 to 100 with one missing element. Find the missing element.

22 Answers


1. calculate the sum of elements in array say SUM 2. sum of numbers 1 to 100 is(n* (n+1))/2 = 5050 when n==100 3. missing element is (5050-SUM)


You have a 100 coins laying flat on a table, each with a head side and a tail side. 10 of them are heads up, 90 are tails up. You can't feel, see or in any other way find out which side is up. Split the coins into two piles such that there are the same number of heads in each pile.

34 Answers

How do you convince a CIO of a utility to care about energy efficiency?

5 Answers

What are the different ways you can you tell if this part is steel or aluminium.

4 Answers

In a given sorted array of integers remove all the duplicates.

6 Answers

how can a particular application be tested apart from testing its functionality

3 Answers

Describe a sales situation where price seemed to be the primary driver and how you overcame the focus on cost and made it more about 'value.'

2 Answers

What would I do to improve and ensure product quality if given the job?

2 Answers

can you host multiple https sites with different domain names but same IP on the same server? how

3 Answers

How do you influence people who do not report to you? How do you get them to do things even though they don't have to or want to?

2 Answers
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