TCS Assistant System Engineer Interview Questions, Process, and Tips

All basic apti and coding round as well

Q1. What you want to be next 5years
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Online assessment consists of two tests
1. National qualifier test ( Aptitude includes numerical ability, Logical and reasoning, verbal ability)
2. IT programming ( 2 questions )

Q1. Given a string S(input consisting) of ‘*’ and ‘#’. The length of the string is variable. The task is to find the minimum number of ‘*’ or ‘#’ to make it a valid string. The string is consid...read more
Ans. 
Find minimum number of * or # to make a string valid with equal number of * and #.
• Count the number of * and # in the string.

• Find the absolute difference between the counts.

• Return the difference as the minimum number of characters to add.

• If the counts are already equal, return 0.
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It was conducted on MS Teams. I got a meeting link in mail, and I joined it. A lady interviewed me. She asked me a lot of questions on programming.

Once the interview was over she gave me another link and told me to join it for the HR interview

Q1. Introduce yourself
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Q2. What was your project? Explain in detail.
Ans. 
Developed a web-based inventory management system for a retail company.
• Used PHP and MySQL for backend development

• Implemented a user-friendly interface using HTML, CSS, and JavaScript

• Incorporated barcode scanning functionality for efficient inventory tracking

• Generated reports on sales, inventory levels, and product performance

• Collaborated with the client to ensure the system met their specific needs
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Q3. Which programming language do you know?
Ans. 
I know multiple programming languages including Java, Python, and C++.
• Java

• Python

• C++
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Q4. What is a list and tuple?
Ans. 
List and tuple are data structures in Python used to store collections of items.
• Lists are mutable and can be modified, while tuples are immutable and cannot be modified.

• Lists are defined using square brackets [], while tuples are defined using parentheses ().

• Lists are commonly used for storing and manipulating data, while tuples are used for grouping related data.

• Example of a list: my_list = [1, 2, 3]

• Example of a tuple
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Q5. What is pass and break?
Ans. 
In programming, pass and break are keywords used for control flow.
• pass is a keyword used to indicate that no action should be taken in a certain block of code.

• break is a keyword used to exit a loop or switch statement.

• pass is commonly used as a placeholder when a statement is required syntactically but no action is needed.

• break is used to terminate the execution of a loop or switch statement and continue with the next
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Q6. What is call by value and call by reference?
Ans. 
Call by value and call by reference are two ways of passing arguments to a function.
• Call by value passes a copy of the argument's value to the function.

• Call by reference passes a reference to the argument's memory location to the function.

• Call by value is used for simple data types like int, float, etc.

• Call by reference is used for complex data types like arrays, structures, etc.
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Q7. What is the local and global variable?
Ans. 
Local variables are declared within a function and have a limited scope, while global variables are declared outside of a function and can be accessed throughout the program.
• Local variables are only accessible within the function they are declared in.

• Global variables can be accessed from any part of the program.

• Local variables are created when a function is called and destroyed when the function ends.

• Global variables a...read more
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I got the link from my technical interview. I joined the meeting and waited for the HR to let me in.
The interview was short and he only asked a few questions

Q1. How was your technical interview?
Ans. 
The technical interview was challenging but I felt confident in my abilities.
• I was asked about my experience with programming languages such as Java and Python.

• I was also asked about my knowledge of database management systems.

• I was given a coding problem to solve on a whiteboard.

• Overall, I felt that the interview was a good test of my technical skills.
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Q2. What did you do during the pandemic at home?
Ans. 
During the pandemic, I focused on personal development, spent time with family, and learned new skills.
• I took online courses to improve my technical skills

• I spent quality time with my family and helped with household chores

• I started a new hobby of gardening and grew my own vegetables

• I read books on personal development and leadership

• I volunteered remotely for a non-profit organization to help those affected by the pand
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Q3. Will you relocate as we are having more branches and divisions where work is to be done?
Ans. 
Yes, I am willing to relocate for the job.
• I am open to relocating for the job

• I understand that the company has more branches and divisions where work needs to be done

• I am excited about the opportunity to work in different locations and gain new experiences

• I am willing to discuss relocation packages and support with the company
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Q4. Do you have any questions?
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Q1. Introduce yourself.
Ans. I gave a brief intro about myself, including my academic details, hobbies, strengths and weaknesses and my goals.
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Q2. What is the difference between c and c++?
Ans. 
C++ is an extension of C with object-oriented programming features.
• C++ supports classes and objects while C does not.

• C++ has better support for polymorphism and inheritance.

• C++ has a standard template library (STL) while C does not.

• C++ is more complex and has more features than C.

• C++ is often used for developing large-scale software projects.

• C is often used for system programming and embedded systems.
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Q3. What is a++ and ++a?
Ans. 
a++ and ++a are both increment operators in programming languages like C++ and Java.
• a++ is a post-increment operator which increments the value of a after the expression is evaluated.

• ++a is a pre-increment operator which increments the value of a before the expression is evaluated.

• Both operators can be used with variables of numeric data types like int, float, etc.

• Example: int a = 5; int b = a++; // b = 5, a = 6; int c
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Q4. What are the different operators in c?
Ans. 
C language has various operators like arithmetic, relational, logical, bitwise, assignment, and conditional operators.
• Arithmetic operators: +, -, *, /, %

• Relational operators: <, >, <=, >=, ==, !=

• Logical operators: &&, ||, !

• Bitwise operators: &, |, ^, ~, <<, >>

• Assignment operators: =, +=, -=, *=, /=, %=

• Conditional operator: ? :
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Q5. Write a program for swapping 2 numbers without the 3rd variable.
Ans. 
Swapping 2 numbers without a third variable in a program.
• Use arithmetic operations to swap the values of the variables.

• Add the values of both variables and store the result in one variable.

• Subtract the value of the second variable from the sum and store the result in the second variable.

• Subtract the value of the first variable from the sum and store the result in the first variable.
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Q6. What project have you done?
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Q1. Introduce yourself.
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Q2. Who is the CEO of TCS?
Ans. 
The CEO of TCS is Rajesh Gopinathan.
• Rajesh Gopinathan became the CEO of TCS in 2017.

• He has been with TCS for over 20 years, starting as an engineer.

• Under his leadership, TCS has continued to grow and expand globally.

• Gopinathan has also emphasized the importance of digital transformation and innovation.

• He holds a degree in electrical and electronics engineering from the National Institute of Technology, Tiruchirappalli.
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Q3. What do you know about TCS?
Ans. 
TCS is a multinational IT services company headquartered in India.
• TCS stands for Tata Consultancy Services.

• It was founded in 1968 by J.R.D. Tata.

• It is one of the largest IT services companies in the world.

• TCS offers services in areas such as consulting, digital transformation, and engineering.

• It has a presence in over 46 countries.

• Some of its clients include major companies like Microsoft, Citigroup, and General Electr
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Q4. Are you ready to relocate?
Ans. 
Yes, I am open to relocation for the right opportunity.
• I am willing to relocate for career growth and new experiences

• I am open to considering different locations and researching the area

• I understand that relocation may come with challenges but I am prepared to face them

• I am excited about the possibility of exploring a new city or region
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Its easy if you prepare

Q1. Basic technical questions
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Q2. About basic SQL questions
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Q1. Just basic team management questions
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Q1. Java oops questions,sql
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