Cognizant Trainee Programmer Interview Questions, Process, and Tips

Online proctored MCQ containing 60 ques.

Q1. Tell me about yourself
Ans. 
I am a recent graduate with a degree in Computer Science and a passion for coding and problem-solving.
• Graduated with a degree in Computer Science

• Passionate about coding and problem-solving

• Completed internships at tech companies

• Proficient in programming languages like Java, Python, and C++
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Q2. Tell me about functions in c
Ans. 
Functions in C are blocks of code that perform a specific task and can be called multiple times within a program.
• Functions in C are defined using a return type, function name, parameters, and a body enclosed in curly braces.

• Functions can be called multiple times within a program to perform the same task without rewriting the code.

• Functions can return a value using the 'return' statement.

• Functions can also be void, mean...read more
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Q3. Write a C program to find maximum and minimum of given 3 numbers
Ans. 
Program to find maximum and minimum of 3 numbers in C
• Use if-else statements to compare the numbers

• Initialize variables to store maximum and minimum values

• Consider using arrays to store the numbers for easier comparison
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Q4. Write a program to print a matrix of 3 by 3.
Ans. 
Program to print a 3x3 matrix using nested loops.
• Use nested loops to iterate through rows and columns of the matrix.

• Initialize a 2D array with 3 rows and 3 columns to store the matrix elements.

• Print the elements of the matrix using nested loops.
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Q5. What is a primary key
Ans. 
A primary key is a unique identifier for each record in a database table.
• Uniquely identifies each record in a table

• Cannot contain null values

• Can consist of one or multiple columns

• Used to establish relationships between tables
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Q6. Difference between while loop and for loop
Ans. 
While loop is used when the number of iterations is not known beforehand, while for loop is used when the number of iterations is known.
• While loop checks the condition before executing the block of code, while for loop initializes, checks condition, and increments/decrements in one line.

• For loop is used when the number of iterations is known, while loop is used when the number of iterations is not known.

• Example: while
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Q7. Difference between break and continue.
Ans. 
Break is used to exit a loop, while continue is used to skip the current iteration and move to the next one.
• Break is used to terminate the loop and exit it completely.

• Continue is used to skip the current iteration and move to the next one.

• Example: for(int i=0; i<5; i++) { if(i==3) { break; } System.out.println(i); } // Output: 0 1 2

• Example: for(int i=0; i<5; i++) { if(i==3) { continue; } System.out.println(i); } // Out
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Q8. What is a string in C.
Ans. 
A string in C is a sequence of characters stored as an array of characters terminated by a null character.
• Strings in C are actually arrays of characters.

• Strings are terminated by a null character '\0'.

• Strings can be initialized using double quotes, e.g. char str[] = "Hello".
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Q9. Why C is called middle level language?
Ans. 
C is called middle level language because it combines features of both high-level and low-level languages.
• C allows low-level manipulation like memory management and bit manipulation.

• C also supports high-level features like functions, data structures, and dynamic memory allocation.

• C is closer to the hardware compared to high-level languages like Java or Python, but not as close as low-level languages like assembly.

• C pro...read more
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Q1. Introduce yourself
Ans. 
I am a recent graduate with a degree in Computer Science, passionate about coding and problem-solving.
• Recent graduate with a degree in Computer Science

• Passionate about coding and problem-solving

• Experience with programming languages like Java, Python, and C++

• Completed internships in software development at XYZ Company

• Strong analytical and problem-solving skills
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Q2. Tell me about your college project
Ans. 
Developed a web-based inventory management system for a local grocery store
• Used HTML, CSS, JavaScript for front-end development

• Implemented PHP and MySQL for back-end functionality

• Included features like real-time stock updates, sales tracking, and user authentication
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Q3. Tell me the tech stack used
Ans. 
Our tech stack includes Java, Spring Boot, React, and MySQL.
• Java

• Spring Boot

• React

• MySQL
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Q4. What was your roll in the project
Ans. 
I was responsible for developing the front-end user interface of the project.
• Designed and implemented user-friendly interfaces using HTML, CSS, and JavaScript

• Collaborated with the design team to ensure a seamless user experience

• Tested and debugged code to ensure functionality and performance

• Integrated front-end components with back-end systems for data retrieval and processing
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Q5. Are you ready to work in 24*7 in flexible shifts
Ans. 
Yes, I am ready to work in 24*7 flexible shifts as a Trainee Programmer.
• I am willing to work in flexible shifts to accommodate project needs

• I understand the importance of being available 24*7 in case of emergencies or critical issues

• I am committed to learning and growing in my role as a Trainee Programmer
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Q6. Why do you want to join cognizant
Ans. 
I want to join Cognizant because of its reputation for providing excellent training and career growth opportunities in the IT industry.
• Cognizant is known for its focus on employee development and training programs

• I am impressed by Cognizant's reputation for innovation and cutting-edge technology solutions

• I believe Cognizant offers a great platform for me to enhance my skills and grow in my career
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Tough and hard to answer the questions

Tough hard to solve the programs

Q1. Comfortable with night shifts
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Q2. Yes im ok with rotational shift
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Q3. Java is fully oops concept?
Ans. 
Java is a fully object-oriented programming language.
• Java supports all four pillars of OOP: encapsulation, inheritance, polymorphism, and abstraction.

• Classes and objects are fundamental concepts in Java.

• Java allows for the creation of user-defined classes and objects.

• Inheritance enables code reusability in Java.

• Polymorphism allows objects to be treated as instances of their parent class.

• Abstraction allows for hiding im...read more
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Q4. Decision-making related question
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Aptitude questions and logical reasoning questions.

Q1. Self, About what we upload the skills in resume
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Q1. Document verification and self
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Basic math and english

Q1. Asked me about a programming language
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1) Quantitative Aptitude
2) Analytical and logical reasoning
3) verbal

Q1. Based on what you mentioned in your resume they will ask questions on that
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Q1. In HR round they will ask self introduction, and some technical questions
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Q1. They ask me some technical questions like what is difference between c and Java, what is meant by C, what is meant by tokens.
Ans. 
Technical questions about C and Java programming languages.
• C is a procedural language while Java is an object-oriented language.

• C is compiled while Java is interpreted.

• Tokens are the smallest individual units of a program, such as keywords, operators, and identifiers.

• C is used for system programming, embedded systems, and low-level programming while Java is used for web development, mobile development, and enterprise a
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Q2. And later he ask me to write a polyndrome or factors program
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Q1. Hr round is just document verification
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Q2. They didn't ask any technical questions
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