Experis IT Senior .NET Developer Interview Questions and Answers

Round duration - 105 minutes
Round difficulty - Medium

There were 3 problems .
One was easy but the other two were of medium level.

Q1. 
Aggressive Cows Problem Statement
Given an array representing positions of stalls and an integer ‘K’ representing the number of aggressive cows, determine the largest minimum distance between any two cows ...read more
Ans. 
The problem requires assigning aggressive cows to stalls in a way that maximizes the minimum distance between any two cows.
• Sort the array of stall positions in ascending order.

• Use binary search to find the largest minimum distance between cows.

• Check if it is possible to assign cows with this minimum distance by iterating through the sorted array.

• If it is possible, update the maximum distance and continue binary search ...read more
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Q2. 
Shortest Path in an Unweighted Graph
The city of Ninjaland is represented as an unweighted graph with houses and roads. There are 'N' houses numbered 1 to 'N', connected by 'M' bidirectional roads. A road...read more
Ans. 
The problem is to find the shortest path between two houses in an unweighted graph.
• The graph represents the city of Ninjaland with houses connected by roads.

• The input consists of the number of test cases, number of houses and roads, starting and ending house, and the roads between houses.

• The output is a vector of nodes representing the shortest path from the starting house to the ending house.

• If there are multiple shor...read more
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Q3. 
Count Set Bits Problem Statement
Given a positive integer N, compute the total number of '1's in the binary representation of all numbers from 1 to N. Return this count modulo 1e9+7 because the result can...read more
Ans. 
The task is to count the total number of '1' in the binary representation of all numbers from 1 to N.
• Convert each number from 1 to N into its binary representation

• Count the number of '1' bits in each binary representation

• Sum up the counts of '1' bits for all numbers

• Return the sum modulo 1e9+7
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Round duration - 60 minutes
Round difficulty - Easy

The interviewer was very polite and straightforward. 
Firstly he introduced himself and then asked me to introduce myself and then he jumped to the coding problems.
After the coding problems, he asked some questions from the OS and DBMS.

Q1. 
Reverse Words in a String: Problem Statement
You are given a string of length N. Your task is to reverse the string word by word. The input may contain multiple spaces between words and may have leading o...read more
Ans. 
The task is to reverse the words in a given string, removing any leading or trailing spaces and replacing multiple spaces between words with a single space.
• Split the string into words using spaces as delimiters

• Reverse the order of the words

• Join the reversed words with a single space between them

• Remove any leading or trailing spaces
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Q2. 
Reverse Linked List in Groups of K
You are provided with a linked list containing 'N' nodes and an integer 'K'. The task is to reverse the linked list in groups of size K, which means reversing the nodes ...read more
Ans. 
The task is to reverse a linked list in groups of size K.
• Iterate through the linked list in groups of size K

• Reverse each group using a helper function

• Connect the reversed groups to form the final reversed linked list
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Round duration - 60 minutes
Round difficulty - Medium

The interviewer was very polite and straightforward, firstly he introduce himself and then ask me to introduce myself and then ask some ques on my projects and then he jumps to the coding problems.

Q1. 
Remove Consecutive Duplicates From String Problem Statement
Given a string STR consisting of both lower and upper case characters, your task is to remove consecutive duplicate characters from the string a...read more
Ans. 
The task is to remove consecutive duplicate characters from a given string and return the new string.
• Iterate through the characters of the string

• Compare each character with the next character

• If they are the same, skip the next character

• If they are different, add the current character to the new string

• Return the new string
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Q2. 
Maximum Path Sum in a Matrix
Given an N*M matrix filled with integer numbers, determine the maximum sum that can be obtained from a path starting from any cell in the first row to any cell in the last row...read more
Ans. 
The question asks to find the maximum sum that can be obtained from a path starting from any cell in the first row to any cell in the last row of a given matrix.
• Iterate through each cell in the first row and calculate the maximum sum path ending at that cell

• For each cell, calculate the maximum sum path ending at that cell by considering the three possible directions

• Store the maximum sum path ending at each cell in a se...read more
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Medium leveln coding round

Q1. SQL, Oracle PL SQL QUESTIONS
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Q2. DML DDL TRIGGER PROCEDURE ETC
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Aptitude and coding logis asked

Few coding questions and MCQ based

Q1. About project and last change request i did
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Q1. Asked about companies and experiences
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Q1. Abstract class and interface
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Q2. Oops concepts and
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Q1. Oops concepts and working scenarios
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Q2. Advance java basic script
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Q1. Basic details like as previous employment, academic
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Q2. Discussion about salary
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Q1. How to make box segment
Ans. 
A box segment can be made by cutting a box into two parts along one of its faces.
• Choose a face of the box to cut along

• Use a saw or knife to cut through the box along the chosen face

• Sand the edges of the cut to smooth them out if necessary
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Q2. Different Question about major bridge
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Q1. Core java features and describes oops concept.
Ans. 
Core Java is a programming language that supports OOPs concepts such as inheritance, encapsulation, abstraction, and polymorphism.
• Core Java is an object-oriented programming language.

• It supports encapsulation, which means hiding the implementation details of an object from the outside world.

• Inheritance allows a class to inherit properties and methods from another class.

• Abstraction is the process of hiding complex imple...read more
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Q2. Introduce yourself and about tech that you have used.
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Q1. Describe project and your role and responsibility.
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Q2. What is docker and kubernetes
Ans. 
Docker is a containerization platform that allows developers to package and run applications in isolated environments. Kubernetes is an open-source container orchestration system that automates deployment, scaling, and management of containerized applications.
• Docker allows developers to create and run applications in containers, which are lightweight and portable environments that can run on any machine with Docker ins...read more
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Q3. How to see log of a complete request in docker
Ans. 
To see log of a complete request in docker, use docker logs command.
• Use 'docker logs ' command to see logs of a specific container

• Use '-f' flag to follow the logs in real-time

• Use '--tail' flag to specify the number of lines to show from the end of the logs

• Use '--since' and '--until' flags to specify a time range for the logs

• Use '--timestamps' flag to show timestamps in the logs
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Q1. Tell me about yourself.
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Q2. Some manarigial questions.
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