Adda 247 Software Developer Interview Questions and Answers

Q1. Explain tuples, list, etc
Ans. 
Tuples and lists are data structures in Python used to store multiple items.
• Tuples are immutable and ordered collections of elements.

• Lists are mutable and ordered collections of elements.

• Both can store different data types.

• Tuples are defined using parentheses, while lists use square brackets.

• Example: tuple = (1, 'a', True), list = [1, 'a', True]
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Q2. Explain about the code
Ans. 
The code is a software program that performs a specific function.
• The code is written in a specific programming language.

• It may contain functions, classes, or modules.

• The code may interact with databases or external APIs.

• It could be part of a larger software system or application.

• The code may have been written by multiple developers.

• It may include comments or documentation to explain its purpose.
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Aptitude and reasoning questions

Coadingprogrammingtest

Disscus about particular topic

Q1. To check skills
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Q1. Asking about jober
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3-4 easy level coding questions(find maximum number,Reverse String,Bubble Sort,Leap Year)

Q1. Easy OOPs based
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Find the odd number in sequence

Find the odd number in series

Q1. Java Loop structure
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Q2. While Loop cycle
Ans. 
A while loop is a control flow statement that allows code to be executed repeatedly based on a given condition.
• While loop continues to execute a block of code as long as the specified condition is true

• The condition is evaluated before each iteration of the loop

• Example: while (x < 5) { // code to be executed }
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25 questions of quants and logical and 10 questions of coding, some were debugging some were coding

Q1. Discussion about my resume projects
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Q2. Return addition and subtraction of two numbers from the same function
Ans. 
A function that returns the addition and subtraction of two numbers.
• Create a function that takes two numbers as input parameters.

• Inside the function, calculate the sum of the two numbers and store it in a variable.

• Calculate the difference of the two numbers and store it in another variable.

• Return an array of strings containing the sum and difference.
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Q3. Print leaf nodes of binary tree
Ans. 
Print leaf nodes of binary tree
• Traverse the tree recursively

• If node is null, return

• If node is leaf node, print it

• Else, recursively traverse left and right subtrees
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Q4. What is the protocol used for communication over web pages
Ans. 
HTTP is the protocol used for communication over web pages.
• HTTP stands for Hypertext Transfer Protocol

• It is the foundation of data communication on the World Wide Web

• HTTP uses a client-server model where the web browser acts as the client and sends requests to the web server

• The web server responds with the requested data in the form of HTML, images, videos, etc.
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So prepare good amout of aptitude , and try to solve at least 15 Questions

It was an Online coding test 2 questions were there. difficulty (Easy and Medium).

The third round was again an coding round but it was a pen and paper test , it was in offline mode they will tell you the center after you will complete 2nd round.
In pen and paper test there are 10 coding questions and from topics array , string , recursion , Bit manipulation , BST , Linked List. so you have to solve at least 6-7 questions.

Q1. Questions on HTML, CSS
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Q2. Permutations in string (Can you Backtracking approach). Always try to explain your approach
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Q3. Explain your Project?
Ans. 
Developed a web application for managing inventory and sales for a retail store.
• Used HTML, CSS, and JavaScript for front-end development.

• Implemented backend functionality using Node.js and MongoDB for database management.

• Incorporated user authentication and authorization features for secure access.

• Integrated payment gateway for online transactions.

• Utilized responsive design for mobile compatibility.
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