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TCS Embedded Software Engineer Interview Questions and Answers
TCS Embedded Software Engineer Interview Experiences
2 interviews found
Shalini Singh
I applied via Naukri.com and was interviewed in Jan 2024. There was 1 interview round.
(3 Questions)
- Q1. What is difference between Normal OS and RTOS? What is difference between microcontroller and microprocessor? Write a C program to swap two numbers without using 3rd variable.
- Ans.
RTOS is a real-time operating system designed for time-sensitive applications. Microcontrollers are integrated circuits with built-in memory and peripherals.
RTOS is designed to provide deterministic and predictable response times for critical tasks.
Normal OS is designed for general-purpose computing and may not prioritize real-time tasks.
Microcontrollers are typically used in embedded systems and have limited resources...
- Q2. What is storage class in C?
- Ans.
Storage class in C determines the scope, visibility, and lifetime of variables.
C has four storage classes: auto, register, static, and extern.
Auto storage class is the default and is used for local variables.
Register storage class is used for variables that should be stored in CPU registers for faster access.
Static storage class is used for variables that retain their values between function calls.
Extern storage class ...
- Q3. What is difference between macro and constant variable in C? How to divide a number without using division operator?
- Ans.
A macro is a preprocessor directive that is replaced by its value before compilation, while a constant variable is a read-only variable.
Macros are defined using the #define directive, while constant variables are declared using the const keyword.
Macros are replaced by their values during preprocessing, while constant variables are stored in memory.
Macros can lead to code duplication, while constant variables provide ty...
Interview Preparation Tips
- C
- Embedded Systems
Skills evaluated in this interview
Anonymous
I applied via Naukri.com
Including reasoning and relationship
Virtual round with a specific topic
Basic level of coding
Interview questions from similar companies
I applied via Referral and was interviewed in Nov 2020. There were 5 interview rounds.
Interview Questionnaire
3 Questions
- Q1. Introduction for your reference
- Q2. Introduction to the same
- Q3. Introduction to the smoky
Interview Preparation Tips
I appeared for an interview before Jul 2021.
(4 Questions)
- Q1. What is Polymorphism and it’s type?
- Ans.
Polymorphism is the ability of an object to take on many forms. It allows objects of different classes to be treated as if they were of the same class.
Polymorphism is achieved through method overriding and method overloading.
Method overriding is when a subclass provides a specific implementation of a method that is already provided by its parent class.
Method overloading is when a class has two or more methods with the ...
- Q2. What is Dependency Injection?
- Ans.
Dependency Injection is a design pattern where the dependencies of an object are injected into it rather than created within it.
It helps in achieving loose coupling between objects
It makes testing easier as dependencies can be mocked or stubbed
There are three types of Dependency Injection - Constructor Injection, Setter Injection, and Interface Injection
Example: In a web application, the database connection object can ...
- Q3. How Garbage Collection works in .Net?
- Ans.
Garbage Collection in .Net automatically manages memory by freeing up unused objects.
Garbage Collector runs in the background and periodically checks for unused objects.
It frees up memory by deallocating objects that are no longer being used.
GC can be configured using different modes like Server, Workstation, Concurrent, etc.
GC can also be manually triggered using GC.Collect() method.
GC.SuppressFinalize() method can be...
- Q4. What is LINQ and some basic concept related it?
Interview Preparation Tips
Skills evaluated in this interview
I applied via Walk-in and was interviewed before Apr 2021. There were 3 interview rounds.
(1 Question)
- Q1. .Net related technical questions
(3 Questions)
- Q1. Tell me about yourself.
- Q2. What are your strengths and weaknesses?
- Q3. What are your salary expectations?
Interview Preparation Tips
Interview Questionnaire
1 Question
- Q1. What is pickling?
- Ans.
Pickling is a process of serializing and de-serializing Python objects into a byte stream.
Pickling is used to store Python objects in a file or transfer them over a network.
The pickle module in Python is used for pickling and unpickling.
The pickled data can be stored in a file or transferred over a network.
The pickled data can be easily unpickled to get back the original Python object.
Interview Preparation Tips
Skills evaluated in this interview
I applied via Company Website and was interviewed in May 2021. There were 3 interview rounds.
Interview Questionnaire
2 Questions
- Q1. Why you wanna work in our company?
- Q2. Wh
Interview Preparation Tips
I applied via Referral and was interviewed before Oct 2020. There were 3 interview rounds.
Interview Questionnaire
2 Questions
- Q1. Coding questions on Python. Data structures basdd questions. Went deep into trees.
- Q2. Old projects.
Interview Preparation Tips
They will ask more details and further alterations on those questions in the interview.
Keep documents ready like payslips. Form 16 etc. HR is too particular about it and I did not take the job after clearing all rounds because HR was being non committal and a startup gave me an offer right away.
Interview Questionnaire
4 Questions
- Q1. What is stack
- Ans.
A stack is a data structure that follows the 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 more.
- Q2. What is DOM
- Ans.
DOM stands for Document Object Model. It is a programming interface for web documents.
DOM is a tree-like structure that represents the HTML or XML document.
It allows developers to manipulate the content and structure of a web page using scripting languages like JavaScript.
DOM provides a way to access and modify the elements, attributes, and text content of a web page.
It also allows developers to add or remove elements ...
- Q3. What is interface
- Ans.
An interface is a contract between two components that defines the communication between them.
An interface defines a set of methods that a class must implement.
Interfaces allow for polymorphism and loose coupling.
Interfaces can be used to define common behavior for unrelated classes.
Examples include the Java Collection interface and the USB interface.
- Q4. What is the difference between insertion sort and merge sort
- Ans.
Insertion sort is a simple sorting algorithm that iterates through an array and places each element in its correct position. Merge sort is a divide and conquer algorithm that divides an array into two halves, sorts them separately, and then merges them back together.
Insertion sort has a time complexity of O(n^2) while merge sort has a time complexity of O(n log n)
Insertion sort is efficient for small data sets while me...
Interview Preparation Tips
Skills evaluated in this interview
I applied via Referral and was interviewed in Oct 2020. There was 1 interview round.
Interview Questionnaire
1 Question
- Q1. How to sort elements of a BST
- Ans.
BST elements can be sorted using in-order traversal
Perform in-order traversal of the BST
Store the elements in a temporary array
Sort the array using any sorting algorithm
Replace the elements in the BST with the sorted array
Interview Preparation Tips
Skills evaluated in this interview
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TCS Embedded Software Engineer Interview Process
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TCS Embedded Software Engineer Reviews and Ratings
based on 17 reviews
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