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Cognizant Software Engineer Interview Questions and Answers for Freshers
22 Interview questions
This code removes duplicate characters from a string while preserving the original order.
Use a set to track seen characters. Example: 'hello' -> 'helo'.
Iterate through the string and build a new string with unique characters.
Consider using a list to maintain order before joining it back to a string.
Example code in Python: 'result = ''.join(sorted(set(input_string), key=input_string.index))'.
Java 8 introduced significant enhancements over Java 7, including lambdas, streams, and new date/time APIs.
Lambda Expressions: Java 8 introduced lambda expressions, allowing for more concise and functional-style programming. Example: (x, y) -> x + y.
Streams API: Java 8 added the Streams API for processing sequences of elements, enabling operations like filter, map, and reduce. Example: list.stream().filter(x -&...
OOPs concepts are the fundamental principles of Object-Oriented Programming.
Abstraction: Hiding implementation details and showing only necessary information.
Encapsulation: Binding data and functions together to protect data from outside interference.
Inheritance: Acquiring properties and behavior of a parent class by a child class.
Polymorphism: Ability of an object to take many forms or have multiple behaviors.
A variable is a container that holds a value. A structure is a collection of variables of different data types.
Variables are declared with a data type and a name, and can be assigned a value.
Structures are declared using the 'struct' keyword and can contain variables of different data types.
Example code: int age = 25; struct person { char name[20]; int age; float height; };
Variables and structures are fundamental ...
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A program using recursion
Recursion is a technique where a function calls itself to solve a problem
It involves a base case and a recursive case
Examples include factorial, Fibonacci sequence, and binary search
Design patterns are reusable solutions to common software problems in Java.
Design patterns provide a standard way to solve common problems in software development.
They help in creating flexible, reusable, and maintainable code.
Examples of design patterns include Singleton, Factory, Observer, and Decorator.
Design patterns can be categorized into three types: creational, structural, and behavioral.
Synchronization in Java is the process of controlling access to shared resources by multiple threads.
Synchronization is achieved using the synchronized keyword in Java.
It ensures that only one thread can access the shared resource at a time.
Synchronization can be applied to methods or blocks of code.
It is used to prevent race conditions and ensure thread safety.
Example: synchronized void myMethod() { //code }
Examp...
An array is a collection of elements of the same data type, stored in contiguous memory locations.
Arrays can be one-dimensional or multi-dimensional
Elements in an array can be accessed using their index
Arrays can be initialized with values at declaration
Examples: int[] numbers = {1, 2, 3}; char[] letters = {'a', 'b', 'c'};
Arrays have a fixed size once declared
A stack is a data structure that follows the Last In First Out (LIFO) principle.
Elements are added to the top of the stack and removed from the top.
Common operations include push (add element) and pop (remove element).
Stacks are used in programming for function calls, expression evaluation, and memory management.
Data type in C refers to the type of data that a variable can hold.
C has basic data types like int, float, char, double, etc.
Derived data types like arrays, pointers, structures, and unions can also be created.
Each data type has a specific range of values that it can hold.
Data types can be modified using type qualifiers like const, volatile, etc.
Cognizant Software Engineer Interview Experiences for Freshers
40 interviews found
Anonymous
I applied via Campus Placement
Code to design a Pattern , Fibonacci series, palindrome.. and others.
Interview Preparation Tips
Bharath kumar
(2 Questions)
- Q1. What is the difference between java 7 and java 8
- Q2. Code to remove duplicate entries in a string
Skills evaluated in this interview
(2 Questions)
- Q1. Self introduction
- Q2. About project and roles and Responsibilities
I applied via Recruitment Consulltant and was interviewed in Jan 2024. There was 1 interview round.
(1 Question)
- Q1. Java questions basic and intermediate
Selected
I applied via Job Fair and was interviewed in Feb 2023. There were 2 interview rounds.
(2 Questions)
- Q1. Easy interview any one can crack it
- Q2. Data structures and algorithms and dbms
Interview Preparation Tips
I applied via Naukri.com and was interviewed in Jun 2023. There were 4 interview rounds.
There will be verbal , English test etc we need to cross the best score to move on to round 2
There will 2coding question will be given need to clear with in given time and should pass all the test cases
(2 Questions)
- Q1. Here we need to answer to the hr questions very confidently
- Q2. Intro , why need to hire you
Common aptitude questions ,that include all fields,if you prepare well you can crack this test,and maybe some basic programming questions can ask
(2 Questions)
- Q1. 1. Tell me about yourself
- Q2. 2. Explain the OOPs concepts
- Ans.
OOPs concepts are the fundamental principles of Object-Oriented Programming.
Abstraction: Hiding implementation details and showing only necessary information.
Encapsulation: Binding data and functions together to protect data from outside interference.
Inheritance: Acquiring properties and behavior of a parent class by a child class.
Polymorphism: Ability of an object to take many forms or have multiple behaviors.
Interview Preparation Tips
Selected
I applied via Recruitment Consulltant and was interviewed in Nov 2022. There were 2 interview rounds.
(2 Questions)
- Q1. .net programming and skills
- Q2. C language programming
Interview Preparation Tips
- Communication Skills
I applied via Campus Placement and was interviewed in Sep 2022. There were 3 interview rounds.
(3 Questions)
- Q1. TC questions: Types of datatypes? Predefined functions? Difference between list and tree? Who is more preferred? Difference between class and object? Difference between inheritance and polymorphism? Aptit...
- Ans.
Interview questions for Software Engineer position
Datatypes: int, float, string, boolean, etc.
Predefined functions: print(), len(), range(), etc.
List is linear while tree is hierarchical. Trees are preferred for faster search and insertion.
Class is a blueprint while object is an instance of a class.
Inheritance is a way to create a new class from an existing class while polymorphism is the ability of an object to take o...
- Q2. Write a program using recursion
- Q3. Sort the array and write a code for searching array element
- Ans.
Sort and search an array in software engineering interview
Use built-in sorting functions or implement your own sorting algorithm
For searching, use linear search or binary search depending on the size of the array
Consider the time complexity of the sorting and searching algorithms
Ensure the code is efficient and handles edge cases properly
(1 Question)
- Q1. HR QUESTIONS: Can you relocate? Are you ok with shift wise working? Strengths and weaknesses? Biggest achievement?
- Ans.
Yes
Yes, I am open to relocation for the right opportunity.
Yes, I am comfortable with shift-wise working.
Strengths: Strong problem-solving skills, excellent programming abilities, and effective communication skills.
Weaknesses: Sometimes I can be overly detail-oriented and perfectionistic.
Biggest achievement: Successfully leading a team to develop and launch a complex software project within a tight deadline.
Interview Preparation Tips
Prepare the things which u mentioned in resume
Skills evaluated in this interview
Selected
I appeared for an interview before Mar 2024.
Aptitude test to test analytical skills
2 questions based on building logic
(2 Questions)
- Q1. Name and experience
- Q2. Why do you want to join
Cognizant Interview FAQs
Some of the top questions asked at the Cognizant Software Engineer interview for freshers -
The duration of Cognizant Software Engineer interview process can vary, but typically it takes about less than 2 weeks to complete.
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based on 14 interview experiences
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