Keysight Technologies Senior Automation Engineer Interview Questions and Answers

Duration: 75 min
Platform: HakerRank

There were some 20 questions related to logical, analytical thinking and some maths questions

Q1. C programming language , python programming language, HTML ,css and basic MySQL server
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Q2. Basic knowledge of Excel sheet and power point
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Q1. Personal introduction
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It was a online test including apti or some OOPs concept

In this they asked me about stacks and linked list and some javaprogram

Q1. In this basic Qs of java were asked from me
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Q1. Hr round was my lst round.. In which location and salary was discussed
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DSA and other questions

Round duration - 30. minutes
Round difficulty - Easy

It was in the evening, question were moderate

Q1. 
Count Subsequences Problem Statement
Given an integer array ARR of size N, your task is to find the total number of subsequences in which all elements are equal.
Explanation:
A subsequence of an array i...read more
Ans. 
Count the total number of subsequences in which all elements are equal in an integer array.
• Iterate through the array and count the frequency of each element.

• Calculate the total number of subsequences for each element using the formula (frequency * (frequency + 1) / 2).

• Sum up the total number of subsequences for all elements and return the result modulo 10^9 + 7.
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Round duration - 30 minutes
Round difficulty - Easy

It was in the night around 9:00 PM.

Q1. 
Pair Sum Problem Statement
You are given an integer array 'ARR' of size 'N' and an integer 'S'. Your task is to find and return a list of all pairs of elements where each sum of a pair equals 'S'.
Note:
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Ans. 
Given an array and a target sum, find all pairs of elements that add up to the target sum.
• Iterate through the array and for each element, check if the complement (target sum - current element) exists in a hash set.

• If the complement exists, add the pair to the result list.

• Sort the pairs based on the first element and then the second element.

• Return the list of pairs as the final result.
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