KPMG India Softwaretest Engineer Interview Questions and Answers

Q1. How does Django apply migrations to the database?
Ans. 
Django applies migrations to the database using the 'manage.py migrate' command.
• Django tracks changes to models and generates migration files accordingly.

• The 'manage.py makemigrations' command creates migration files based on model changes.

• The 'manage.py migrate' command applies the generated migration files to the database.

• Migrations help keep the database schema in sync with the changes in Django models.
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Q2. What is hoisting in javascript?
Ans. 
Hoisting in JavaScript is the behavior where variable and function declarations are moved to the top of their containing scope during the compilation phase.
• Variable declarations are hoisted to the top of their scope, but not their assignments.

• Function declarations are fully hoisted, meaning they can be called before they are declared.

• Hoisting can lead to unexpected behavior if not understood properly.
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Create a full stack application in 3 days.

Q1. Plugin pipeline based scenario question which will trigger first?
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Q2. Which jscript method used to prevent form save??
Ans. 
The onbeforeunload method is used to prevent form save.
• Use the onbeforeunload method to display a warning message before leaving the page without saving the form.

• Return a custom message in the method to prompt the user to confirm if they want to leave the page.

• Example: window.onbeforeunload = function() { return 'Are you sure you want to leave this page without saving?'; };
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Q1. Behavioral interview
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Q2. Package negotiations
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Q1. MULTIPLE QUESTIONS OF OOPS
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Q2. Program of prime number
Ans. 
A program to find prime numbers within a given range
• Iterate through numbers in the given range

• Check if each number is divisible by any number other than 1 and itself

• If not divisible, it is a prime number
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Q3. Pseudo code of finding ones in a number
Ans. 
Count the number of ones in a given number using pseudo code
• Initialize a count variable to 0

• Iterate through each bit of the number and check if it is 1

• Increment the count if the bit is 1

• Return the count as the result
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Q4. Basic questions of sql and mongodb
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Basic aptitude questions. Could be done easily if practiced enough

Q1. Introduce yourself
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Q2. Array searching
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Q1. Oops concepts polymorphism encapsulation
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Q2. Design pattern singleton dependency injection
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It was a MCQ type round with 3 coding questions. This round consisted of questions from aptitude, SQL knowledge and a sql command writing question, Programming basics, Web Technology, 2 coding questions. CS Subjects and some Situational based questions.

It was a Just a minute round in which a topic was given by the interviewer to speak upon.

Q1. What all technologies you feel will be fruitful in learning with regards to your future growth?
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Q1. Explain NOSQL databases and their working?
Ans. 
NOSQL databases are non-relational databases that provide flexible schema design and horizontal scalability.
• NOSQL databases store data in key-value pairs, wide-column stores, document databases, or graph databases.

• They are designed for handling large volumes of data and are highly scalable.

• Examples include MongoDB, Cassandra, Redis, and Neo4j.
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Q1. Describe the working of your projects and how did you manage with hectic load of your curriculum being a part of your project building which is from some other domain?
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