Infosys interview questions
Online test → Technical·94% entry level
CS fundamentals
Showing 39 of 1,103 reported in this area
Explain the Software Development Life Cycle (SDLC).
What are the differences between C++ and Python?
What are ACID properties in DBMS?
Explain the phases of the Software Development Life Cycle (SDLC)
Explain different types of SQL joins.
What are the different models of SDLC?
What is the difference between C and C++?
Explain Object-Oriented Programming (OOP) concepts
Explain the internal working of HashMap in Java
What is database normalization and explain its different normal forms.
What is the difference between a microprocessor and a microcontroller?
Explain the layers of the OSI model
What is a primary key in a database?
What are DDL and DML commands in SQL?
Which sorting algorithms do you know?
What is the difference between C and Python?
Explain selection sort and its time complexity
What is the difference between DBMS and RDBMS?
What is the difference between Stack and Queue?
What is the syntax of the UPDATE statement in SQL?
What is Abstraction in Object-Oriented Programming?
What is Encapsulation in Object-Oriented Programming?
Explain the difference between a process and a thread.
Explain the four pillars of Object-Oriented Programming
What are the differences between Array and Linked List?
What is the difference between SQL and NoSQL databases?
Explain the difference between 2-tier and 3-tier architecture.
What is the difference between DROP, DELETE, and TRUNCATE in SQL?
What is the difference between an abstract class and an interface?
What is the difference between method overloading and method overriding?
Explain the different types of inheritance in object-oriented programming.
What is the difference between function overloading and function overriding?
What is a red-black tree?
When do we use heap sort?
What is volatile in C/C++?
Explain N-Tier Architecture.
Explain file handling in C++
Explain Codd's rules in DBMS.
Explain Java garbage collection
DSA
Showing 9 of 500 reported in this area
Write a program to generate the Fibonacci series.
Write a program to check whether a given string is a palindrome.
Write a program to print all permutations of a string.
Find the longest palindromic substring in a given string
Write the Bubble Sort algorithm
Swap two numbers without using a third variable
Merge two sorted linked lists and return it as a sorted list
Find the nth prime number
Explain Dijkstra's algorithm.
Aptitude
Showing 3 of 99 reported in this area
Quantitative aptitude questions covering basic mathematical ability
Solve problems based on Time and Work
Mensuration and advanced trigonometry problems
Behavioural
Showing 3 of 59 reported in this area
How do you handle pressure and prioritize tasks?
If conflicts happen among project team members, how would you resolve them?
What is your view on the farmer's bill dispute and where do you stand on the issue?
Puzzles
Showing 3 of 22 reported in this area
Puzzle question
Puzzle solving questions testing logical thinking
Find the next number in the series: 80, 10, 70, 15, 60, ?
System design
Showing 3 of 19 reported in this area
Design a Tiny URL / URL Shortener system.
Design a URL shortening service like bit.ly.
Design a simple RESTful API for a book management system.
Showing 60 of 1,231 questions. Ranked by how often the same question came back across reports.
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What questions does Infosys ask?
Candidate interview reports most often cover CS fundamentals (61%) and DSA (28%).
How many rounds does Infosys interview have?
Candidate interview reports show an average of 2.5 rounds per experience, with a typical sequence of Online test → Technical. Individual interview paths can vary.
Is the Infosys interview hard?
Among questions with a reported difficulty, the mix is easy 60%, medium 35%, hard 5%.