Collabera Technologies Network Engineer Interview Questions and Answers

Q1. About technical what your role is
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Basic programming questions

Q1. Salary and self intro discussion
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Quantitative ability and logical ability

Q1. In which programming language you are good at?
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Q2. Write a program to print HCF of numbers as output
Ans. 
Program to print HCF of numbers as output
• Take input of two numbers from user

• Find the smaller number between the two

• Run a loop from 1 to the smaller number

• Check if both numbers are divisible by the current loop variable

• If yes, update the HCF variable

• Print the HCF as output
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Q1. Why should we hire you?
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Q1. You have a list of numbers, now using stream api calculate the sum of all integers in a list ?
Ans. List nums = new ArrayList<>(Arrays.asList(1,2,3,4,5,6)); int sum = nums.stream().mapToInt(Integer::intValue).sum(); System.out.println(sum);
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Q2. Given two arrays of integers, find the one extra element in second array ? Eg. int[] arr1 = [1,3,7,8]; int[] arr2 = [3,8,7,9,1];
Ans. 
Loop through both arrays and use a hashmap to store frequency of elements, then find the extra element.
• Loop through both arrays and store frequency of elements in a hashmap

• Compare the frequency of elements in both arrays to find the extra element

• Return the extra element found in the second array
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