TCS Graduate Trainee Interview Questions, Process, and Tips

As we hired through science graduate hiring process they have taken a coding test after clearing this they did called for an interview.

On the interview day they have taken an apptitude test on the interview location.

Q1. Now after clearing the apptitude test it was time to write a code in front of the interviewer.
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Q2. Write a code in c++ to find out the prime numbers.
Ans. 
Code in C++ to find prime numbers
• Use a loop to iterate through numbers and check if each number is prime

• A prime number is only divisible by 1 and itself

• Start checking from 2 onwards, as 0 and 1 are not prime numbers

• Optimize by checking up to square root of the number
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Q3. Write a code in c++ with the help of array to perform sorting.
Ans. 
Code in C++ using array to perform sorting of strings.
• Use std::sort() function from algorithm library to sort the array of strings.

• Define an array of strings, populate it with strings, and then call std::sort() to sort the array.

• Example: std::string arr[] = {"banana", "apple", "cherry"}; std::sort(arr, arr+3);
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Q1. Normal discussion was happen related to education, personal life, future goals etc.
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Basic questions regarding java

Q1. Small formality questions
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TCS aptitude test is all about logical reasoning, basic mathematics and verbal reasoning. The difficulty level of this exam is medium. It contains total of 85 marks and the duration of the exam is 60 mins. So, this exam is mostly about time management.

Q1. Which is your favorite subject according to your study?
Ans. As I am BCA student. My favourite subject is Java.
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Q2. How much you give yourself in java out of 10?
Ans. 
I would rate myself 8 out of 10 in Java.
• I have a strong understanding of core Java concepts such as OOP, data structures, and algorithms.

• I have experience in developing Java applications using frameworks like Spring and Hibernate.

• I have also worked on projects involving Java-based technologies like JSP, Servlets, and JDBC.

• However, there is always room for improvement and I am constantly learning and exploring new featu...read more
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Q3. Why java doesn't use pointer?
Ans. 
Java doesn't use pointers for safety and security reasons.
• Java uses references instead of pointers to avoid memory leaks and null pointer exceptions.

• Pointers can be misused and cause security vulnerabilities.

• Java's garbage collector manages memory automatically, reducing the need for pointers.

• Java's object-oriented design allows for better encapsulation and abstraction without pointers.
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Q4. We use multiple inheritance in C++. Does java supports it? If not then what java used instead of multiple inheritance?
Ans. 
Java does not support multiple inheritance. It uses interfaces to achieve similar functionality.
• Java supports single inheritance, where a class can only inherit from one superclass.

• To achieve multiple inheritance-like behavior, Java uses interfaces.

• Interfaces allow a class to implement multiple interfaces, providing access to multiple sets of methods and constants.

• Unlike classes, interfaces cannot be instantiated and c...read more
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Q1. Where do you see yourself in 5 years?
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Q2. Will you be able to reallocate?
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Q3. Will you be able to work in night shift?
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Q1. Aptitude, communication, technical
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Q1. About your self, technical question
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Round duration - 120 minutes
Round difficulty - Medium

Q1. What are the CRUD operations in DBMS?
Ans. 
CRUD operations in DBMS refer to Create, Read, Update, and Delete operations for managing data.
• Create: Inserting new data into the database

• Read: Retrieving existing data from the database

• Update: Modifying existing data in the database

• Delete: Removing data from the database

• Examples: Creating a new user record, Reading a product's details, Updating a customer's address, Deleting an outdated entry
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Q2. What are the major types of operating systems?
Ans. 
Major types of operating systems include Windows, macOS, Linux, and Unix.
• Windows - developed by Microsoft, widely used in personal computers

• macOS - developed by Apple, used in Mac computers

• Linux - open-source OS popular in servers and embedded systems

• Unix - older OS used in mainframes and servers
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Round duration - 30 minutes
Round difficulty - Easy

Firstly they ask normal question like
Tell me something about yourself.
Tell me about your projects and your contribution in the project.
Which language you like the most.

Q1. 
Consonant Counting Problem Statement
Given a string STR comprising uppercase and lowercase characters and spaces, your task is to count the number of consonants in the string.
A consonant is defined as a...read more
Ans. 
Count the number of consonants in a given string containing uppercase and lowercase characters and spaces.
• Iterate through each character in the string and check if it is a consonant (not a vowel).

• Keep a count of the consonants encountered while iterating through the string.

• Return the total count of consonants at the end.
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Round duration - 20 minutes
Round difficulty - Easy

Q1. What are your hobbies?
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Q2. Are you ready to relocate?
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