TestingXperts Devops Engineer Interview Questions and Answers

Pattern program, selenium,core java basics

Q1. Core java, selenium, project and tools used
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Q1. API Testing related questions
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Q2. Selenium related questions
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Q1. Exploring projects worked on
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Q2. Why Am I looking for change
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Q1. Technical round
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Q1. Salary discussion
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Q1. How to print numbers 1-100 using two go routines sequentially
Ans. 
Use two go routines to print numbers 1-100 sequentially
• Create two go routines, one for printing odd numbers and one for printing even numbers

• Use channels to synchronize the two go routines and ensure sequential printing

• Start the odd number go routine first, then start the even number go routine
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Q2. How to write generator functions using go language
Ans. 
Generator functions in Go language allow for efficient iteration over a sequence of values.
• Use the 'yield' keyword to return values one at a time from the generator function.

• Generator functions are defined with a 'func' keyword followed by the function name and 'chan' keyword.

• Example: func myGenerator() chan int { }

• Use a 'for' loop to iterate over the values returned by the generator function.
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Q1. Why do we use sync.Cond and sync.once
Ans. 
sync.Cond is used for signaling between goroutines and sync.Once is used for running initialization code only once.
• sync.Cond is used for goroutines to wait for or signal each other when a certain condition is met

• sync.Once is used to ensure a function is only executed once, typically used for initialization tasks

• Example: Using sync.Cond to coordinate multiple goroutines accessing a shared resource

• Example: Using sync.Onc...read more
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Q2. Understanding about reflect package
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Q1. Self intruduction
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Q2. Project exaplaination
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Q1. Technology related question on basics if API
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Q1. Manager level discussion - Technologies and Frameworks
Ans. Framework Structure overview and Technologies usage over the experience
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Q1. Client Interview - Technologies and Frameworks
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Q2. Framework explanation and Technologies usage
Ans. 
Frameworks are tools that provide structure and guidelines for developing software applications. Technologies are the specific tools and languages used in development.
• Frameworks like Angular, React, and Spring provide pre-built components and architecture for web development.

• Technologies like HTML, CSS, JavaScript, Java, and SQL are commonly used in software development.

• Choosing the right framework and technologies dep...read more
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Round duration - 70 Minutes
Round difficulty - Hard

Q1. 
Candies Distribution Problem Statement
Prateek is a kindergarten teacher with a mission to distribute candies to students based on their performance. Each student must get at least one candy, and if two s...read more
Ans. 
The task is to distribute candies to students based on their performance while minimizing the total candies distributed.
• Create an array to store the minimum candies required for each student.

• Iterate through the students' ratings array to determine the minimum candies needed based on the adjacent ratings.

• Consider both left-to-right and right-to-left passes to ensure fair distribution.

• Keep track of the total candies dist
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Q2. 
Merge Sort Problem Statement
You are given a sequence of numbers, ARR. Your task is to return a sorted sequence of ARR in non-descending order using the Merge Sort algorithm.
Explanation:
The Merge Sort...read more
Ans. 
Implement Merge Sort algorithm to sort a sequence of numbers in non-descending order.
• Use Divide and Conquer approach to recursively divide the input array into two halves.

• Merge the sorted halves to produce a completely sorted array.

• Ensure the implementation handles the constraints specified in the problem statement.

• Example: For input [3, 1, 4, 1, 5], the output should be [1, 1, 3, 4, 5].
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