Stellapps Technologies Intern Interview Questions and Answers

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Q1. Project discussion
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Q2. Technical Project discussion
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Q1. Questions on DSA were asked by the interviewer at first.
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Q2. Some theoretical questions from DBMS and oops and also asked to write some SQL queries.
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Q1. This round was also similar to the first technical round at first given a DSA question.
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Q2. After that I was asked to write some SQL queries and also questions from resume were asked.
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Q1. This was managerial round which was was offline in person interview. At first he asked sone basic DBMS and oops questions.
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Q2. Then gave me a question and asked me to write a complex SQL query.
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Q1. Expertise in ATS
Ans. 
Experience with Applicant Tracking Systems (ATS) is essential for HR Intern role.
• Familiarity with popular ATS platforms such as Greenhouse, Lever, and iCIMS

• Ability to post job listings, review resumes, and track candidate progress within ATS

• Experience in customizing ATS workflows and generating reports for recruitment metrics
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Q2. Total Experience
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Q1. Number of position closed
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The number of positions closed refers to the total number of job openings that have been filled by candidates.
• The number of positions closed can be tracked through the recruitment process, from job posting to candidate selection.

• This metric is important for evaluating the efficiency and effectiveness of the hiring process.

• For example, if a company has closed 50 positions in a quarter, it indicates a high level of recru
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Q2. Proficiency in Excel
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Proficient in Excel with experience in creating complex formulas, pivot tables, and data analysis.
• Experience in creating and manipulating spreadsheets

• Ability to use functions and formulas effectively

• Knowledge of pivot tables and data visualization techniques

• Experience in data analysis and reporting

• Familiarity with VLOOKUP, INDEX-MATCH, and conditional formatting
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Round duration - 60 minutes
Round difficulty - Medium

The round was technical round and it was held on google meet around 1 pm

Q1. Puzzle
Given two hourglass of 4 minutes and 7 minutes, the task is to measure 9 minutes.
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Q2. Technical Questions
What is multithreading ?
What is diamond problem ?
He asked some technical questions related to my projects
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Q3. Maximum Sum Rectangle
You are given an M X N matrix of integers ARR. Your task is to find the maximum sum rectangle.
Maximum sum rectangle is a rectangle with the maximum value for the sum of integers pr...read more
Ans. Brute force
In this approach, we'll try to consider each rectangle that can be formed using elements of the array. To do this we fix (X1,Y1) coordinates of starting vertex and iterate through the matrix for every pair (X2,Y2) as the coordinates of ending vertex. Now we have a rectangle with coordinates (X1,Y1), (X1,Y2), (X2,Y1) and (X2,Y2).
We'll find the sum of elements within this rectangle and compare it with MAXSUM. ...read more
Answered by CodingNinjas
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Round duration - 60 minutes
Round difficulty - Medium

It was managerial round and took place around 3 pm

Q1. OS Questions
Producer Consumer Problem using Semaphores
What is Banker's algorithm?
What is Belady's Anomaly ?
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Q2. Infix to Postfix
You are given a string EXP which is a valid infix expression. Convert the given infix expression to postfix expression.
Infix expression is of the form a op b. Where operator is is betwe...read more
Ans. Stack
We will scan the expression from left to write and if we encounter an operand we will append it to our answer. If we encounter an operator we will pop all the operators with equal or higher precedence and append them to our answer. And push the current operator. In the end, we will empty the stack.
Order of precedence = [ ‘^’, ‘*’ and ‘/’, ‘+’ and ‘-’, ‘(’, ‘)’]
Order of precedence [ link ]
The algorithm will be-
1. ANS ...read more
Answered by CodingNinjas
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