ValueMomentum Interview Questions, Process, and Tips

Q1. Coding questions, behavioral questions
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Pro's and cons of e-learning, time given for analyzing the topic was 1 minute and discussion has ended in 15 minutes, one after the other got a chance to speak up

Q1. Program on reversing a number in java
Ans. 
A program to reverse a number in Java.
• Convert the number to a string

• Use StringBuilder to reverse the string

• Convert the reversed string back to a number
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Q2. Program on sum of digits in java
Ans. 
A program to find the sum of digits of a given number in Java.
• Take input from user using Scanner class

• Use a while loop to extract each digit from the number

• Add each digit to a variable to get the sum

• Print the sum of digits
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Q3. Factorial program in java
Ans. 
Factorial program in Java
• Use a loop to multiply the numbers from 1 to n

• Handle the case when n is 0 or 1 separately

• Use recursion to calculate factorial

• Factorial of a negative number is undefined
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Q4. Technologies you are familiar with
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I am familiar with a variety of technologies including Java, Python, SQL, HTML/CSS, and JavaScript.
• Proficient in Java and Python programming languages

• Experience with SQL databases and queries

• Familiarity with web development technologies such as HTML/CSS and JavaScript

• Knowledge of software development methodologies such as Agile and Scrum

• Experience with version control systems such as Git
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Q5. An incident where you were successful
Ans. 
Successfully resolved a critical bug in a production system
• Identified the root cause of the bug by analyzing logs and code

• Implemented a fix that resolved the issue without causing any regressions

• Performed thorough testing to ensure the bug was completely resolved

• Collaborated with the team to deploy the fix to production
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Q6. Any projects you worked on
Ans. 
Developed a web application for managing inventory and sales
• Used HTML, CSS, and JavaScript for the frontend

• Implemented a RESTful API using Node.js and Express.js for the backend

• Utilized MongoDB as the database for storing inventory and sales data

• Implemented authentication and authorization using JSON Web Tokens (JWT)

• Implemented data visualization using charting libraries like Chart.js
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Q1. Introduction about yourself
Ans. 
I am a software engineer with 5 years of experience in developing web applications.
• I have a strong background in programming languages such as Java, Python, and JavaScript.

• I have experience in developing and maintaining large-scale web applications using frameworks like Spring and Django.

• I am skilled in database management and have worked with SQL and NoSQL databases like MySQL and MongoDB.

• I have knowledge of front-end...read more
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Q2. Questions from resume
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Q3. How do you take 4 liters from a 2 liter and 5 liter jugs
Ans. 
You cannot take 4 liters from a 2 liter and 5 liter jugs.
• It is not possible to take 4 liters from a 2 liter and 5 liter jugs.

• The combined capacity of the two jugs is less than 4 liters.

• You would need a larger jug or a different approach to obtain 4 liters.
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Q4. How many cricket ball s can fit in a volvo bus
Ans. 
The question is a classic example of a problem-solving question that tests the candidate's ability to think logically and creatively.
• The answer would depend on the size of the cricket ball and the Volvo bus.

• We can calculate the volume of the bus and the volume of the cricket ball to estimate the number of balls that can fit.

• Assuming the average size of a cricket ball is 5 cubic inches and the Volvo bus has a volume of ...read more
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Q5. Why are manhole covers round in shape and why not in square
Ans. 
Manhole covers are round because they cannot fall through the hole they cover and are easier to move.
• Round covers cannot fall through the hole they cover, unlike square covers which can fall diagonally.

• Round covers are easier to move as they can be rolled instead of lifted.

• Round covers are also more aesthetically pleasing and symmetrical.

• Square covers may also have sharp corners which can be dangerous to pedestrians an
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Time and Work,Find next in series ,Verbal,Listening test,Communication test

Two coding tests
My preferable Language was Python
First round focused on basics loops decision statements in 1st question and in second question focused on medium level topics like sorting
Be good at basics like arrays strings sorting dsa easy level questions
Secound round was advance python questuons related to data engineering mcqs and coding question on Pyspark easy level questions were asked go through basics of pyspark and sql

Q1. Questions on projects
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Q2. Basic Questions on python like lambda functions,self,oops concepts
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Q3. Diff between List and Tuple
Ans. 
List is mutable, Tuple is immutable in Python.
• List can be modified after creation, Tuple cannot be modified.

• List uses square brackets [], Tuple uses parentheses ().

• List is used for homogeneous data, Tuple is used for heterogeneous data.
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Q4. Diff between 'is' and ==
Ans. 
The 'is' keyword is used for identity comparison, while '==' is used for equality comparison.
• The 'is' keyword checks if two objects are the same instance in memory.

• The '==' operator checks if two objects have the same value.

• Example: x is y (checks if x and y refer to the same object), x == y (checks if the values of x and y are equal)
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Q1. It was just HR told about company benefits and asked about family that's it
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Q1. Garbage Collection work flow
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Q2. Software design patterns
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Q1. To find employee with 15th highest salary
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Q2. Types of scd and what is SCD1 SCD2 and SCD3
Ans. 
SCD stands for Slowly Changing Dimensions. SCD1, SCD2, and SCD3 are different types of handling changes in data over time.
• SCD1: Overwrites old data with new data, no history is kept.

• SCD2: Adds new records for new data, keeps history with effective start and end dates.

• SCD3: Adds new columns to track changes, keeps history within the same record.
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