TCS Graduate Trainee Interview Questions and Answers for Experienced

Q1. What are the SQL comands
Ans. 
SQL commands are used to interact with databases to perform various operations like querying, updating, and deleting data.
• SELECT: Retrieves data from a database

• INSERT: Adds new records to a table

• UPDATE: Modifies existing records in a table

• DELETE: Removes records from a table

• CREATE TABLE: Creates a new table in the database

• ALTER TABLE: Modifies an existing table structure

• DROP TABLE: Deletes a table from the database
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Q2. What is list which type of list
Ans. 
A list is a collection of items in a specific order.
• Lists can be ordered or unordered

• Examples of list types include arrays, linked lists, and queues
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Q3. What is tuple which type of tuple
Ans. 
A tuple is a data structure that stores a fixed number of elements of different data types.
• Tuples are immutable, meaning their values cannot be changed once they are assigned.

• They are ordered collections, meaning the order of elements is preserved.

• Example: ('John', 25, 'Male') is a tuple with three elements representing a person's name, age, and gender.
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Q4. What are the difference tuple and list
Ans. 
Tuple is immutable and fixed in size, while list is mutable and can change in size.
• Tuple is defined using parentheses, while list is defined using square brackets.

• Tuple elements cannot be changed, while list elements can be modified.

• Tuple is faster than list for iteration and accessing elements.

• Example: tuple = (1, 2, 3) and list = [1, 2, 3]
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Q1. Are you working any location
Ans. 
Yes, I am willing to work in any location for the graduate trainee program.
• I am open to relocating for the right opportunity

• I am flexible and adaptable to new environments

• I believe working in different locations can provide valuable experiences and growth opportunities
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Q2. Are you work night duty
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Verbal, reasoning, logic

Q1. Asked about programming language basics , College project.
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Q2. SQL, java, basic concepts of oops
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It was of around half an hour with 30 Questions and the questions were not very tough.

The basic coding questions just to check the logical ability.

Q1. Brief Introduction and background.
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Q2. Future Aspirations related question.
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Q3. Expectations from the organization.
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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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