TCS iON Assistant System Engineer Trainee Interview Questions, Process, and Tips

Q1. Why python is called interpreted language
Ans. 
Python is called an interpreted language because it executes code line by line at runtime.
• Python code is not compiled into machine code before execution, instead it is translated into intermediate code which is then interpreted by the Python interpreter.

• This allows for easier debugging and dynamic typing, as code can be executed and tested immediately without the need for compilation.

• Interpreted languages like Python a...read more
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Q2. How to run python file
Ans. 
To run a Python file, use the command 'python filename.py' in the terminal.
• Open the terminal or command prompt

• Navigate to the directory where the Python file is located

• Run the command 'python filename.py' to execute the file
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Q1. What are pointers . Write a short program to explain concept of pointers
Ans. 
Pointers are variables that store memory addresses of other variables.
• Pointers are used to access and manipulate memory addresses directly.

• They are denoted by an asterisk (*) before the variable name.

• Example: int *ptr; // declares a pointer to an integer variable
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Q2. What is osi model
Ans. 
The OSI model is a conceptual framework that standardizes the functions of a telecommunication or computing system into seven different layers.
• The OSI model stands for Open Systems Interconnection model.

• It helps in understanding how different networking protocols work together.

• Each layer has specific functions and communicates with the adjacent layers.

• Examples of layers include physical layer, data link layer, network
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Q3. What is encapsulation
Ans. 
Encapsulation is the concept of bundling data and methods that operate on that data into a single unit, known as a class.
• Encapsulation helps in hiding the internal state of an object and restricting access to it.

• It allows for data hiding, which prevents direct access to the internal state of an object.

• Access to the data is typically provided through public methods (getters and setters) defined in the class.

• Encapsulatio...read more
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It was an on center test which had questions on english maths and logical

There were 2 coding questions, one easy and other difficult

Q1. What is the difference between a list and tuple
Ans. 
A list is mutable and can be changed, while a tuple is immutable and cannot be changed.
• List is defined using square brackets [], while tuple is defined using parentheses ().

• Elements in a list can be modified, added, or removed, while elements in a tuple cannot be changed once defined.

• Lists are typically used for collections of items that may need to be modified, while tuples are used for fixed collections of items.

• Exam
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Q2. What is the use of group by in MySQL
Ans. 
GROUP BY in MySQL is used to group rows that have the same values into summary rows.
• Used with SELECT statement to group rows based on one or more columns

• Can be used with aggregate functions like COUNT, SUM, AVG, etc.

• Helps in summarizing data and performing calculations on grouped data

• Example: SELECT department, COUNT(*) FROM employees GROUP BY department
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Q1. Tell me about yourself
Ans. 
I am a recent graduate with a degree in Computer Science, passionate about technology and eager to learn and grow in the field of system engineering.
• Recent graduate with a degree in Computer Science

• Passionate about technology and eager to learn

• Interested in pursuing a career in system engineering
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Q2. What roles of responsibility have you held
Ans. 
I have held roles of responsibility in project management, team leadership, and technical support.
• Managed multiple projects simultaneously

• Led a team of 10 employees to successfully complete a software development project

• Provided technical support to clients and resolved issues in a timely manner
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Written test based on economics math stat and coding

Q1. Technical knowledge, background
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Q2. Related to study in masters
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Basic aptitude questions and 2 coding questions

Q1. Question regarding my project, Few questions from SQL, Few questions regarding HTML, CSS Few questions on Java
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Q1. Basic questions like what are your future plans If I'm okay with transferring to different location
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