TCS System Engineer Hardware Interview Questions, Process, and Tips

Q1. Explain automation framework that you have worked on.
Ans. 
I have worked on a keyword-driven automation framework using Selenium and TestNG.
• Used Excel sheets to store test data and keywords

• Implemented reusable functions for common actions

• Integrated with Jenkins for continuous integration

• Supported parallel execution for faster testing
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Q1. Tell me about yourself
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Q1. It contains aptitude,verbal reasoning, technical questions and one coding question
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Q1. It contains advance aptitude, advance technical, advance coding question
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Q1. Technical discussion includes key concepts like Java programming,operating system, DBMS, networking
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Q1. About TCS, trending technologies
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Q1. Questions related to your domain. skills and tools used
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Q1. Why you want to join TCS
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Q1. Question on Operating system.
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Q1. What are you going to contribute to the organization?
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Ound Name: TCS NQT
Platform used: Digilam Online Assessment
Number of Sections : 3
Sections:

1. Numerical Ability : 26 questions (number of questions), 40 minutes (duration)
2. Verbal Ability: 24 (number of questions), 30 minutes (duration)
3. Reasoning Ability: 30 (number of questions), 50 minutes(duration)
4. Programming Logic: 10 (number of questions), 15 minutes(duration)
5. Coding : 2 (number of questions),45 minutes (duration

Q1. A question on LinkedList
Ans. 
A LinkedList is a data structure where each element points to the next element in the list.
• LinkedLists are useful for dynamic data structures where the size of the list may change during runtime.

• They can be singly linked or doubly linked, where each element points to the next or both the next and previous elements respectively.

• Insertion and deletion operations are efficient in LinkedLists compared to arrays.

• Example: A ...read more
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Q2. One question on Stacks
Ans. 
Stack is a data structure that follows Last In First Out (LIFO) principle.
• Elements are added and removed from the top of the stack.

• Common operations include push (add element) and pop (remove element).

• Stacks are used in programming for function calls, expression evaluation, and memory management.
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Platform used: Digilam Online Assessment
Number of Sections : 1

2 coding questions (Problem statements) to be solved in 1 hour.
First question was easy. Based on loops, strings, array, mathematics,
The 2nd question was difficult and was based on Dynamic Programming.

Q1. What is the difference between list and tuple (in python)?
Ans. 
List and tuple are both data structures in Python, but they have some differences.
• Lists are mutable, while tuples are immutable.

• Lists use square brackets [], while tuples use parentheses ().

• Lists are typically used for collections of homogeneous items, while tuples are used for heterogeneous items.

• Lists are usually used for sequences that will be modified, while tuples are used for sequences that will not be modified.

• L
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Q2. Difference between Pass and continue statement.
Ans. 
Pass statement skips the current iteration and continue statement skips the current iteration and moves to the next one.
• Pass statement is used to do nothing and move to the next iteration in a loop.

• Continue statement is used to skip the current iteration and move to the next one in a loop.

• Pass statement is used when a statement is required syntactically but no action is needed.

• Continue statement is used when a conditio...read more
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Q3. Can we use a continue statement outside loops?
Ans. 
No, continue statement can only be used inside loops.
• The continue statement is used to skip the current iteration of a loop.

• It cannot be used outside of a loop as there is no iteration to skip.

• Attempting to use continue outside of a loop will result in a syntax error.
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Q4. What is Global and local variables?
Ans. 
Global variables are accessible throughout the program, while local variables are only accessible within a specific function.
• Global variables can be accessed and modified by any function or module in the program.

• Local variables are declared within a specific function and can only be accessed within that function.

• Global variables can cause naming conflicts and make debugging difficult.

• Local variables are preferred for t...read more
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Q5. What do you mean by static variable?
Ans. 
Static variable is a variable that retains its value even after the function execution is completed.
• Static variables are declared inside a function with the keyword 'static'.

• They are initialized only once and retain their value throughout the program.

• They have a default value of 0 if not initialized explicitly.

• They are useful in situations where we need to maintain the state of a variable across function calls.
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Q6. Types of polymorphism?
Ans. 
Polymorphism refers to the ability of an object to take on many forms. There are two types of polymorphism: compile-time and runtime.
• Compile-time polymorphism is achieved through function overloading and operator overloading.

• Runtime polymorphism is achieved through virtual functions and function overriding.

• Example of compile-time polymorphism: function overloading - multiple functions with the same name but different p...read more
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