Cognizant Embedded Engineer Interview Questions and Answers

Structure, union and project work

Q1. What is pointer
Ans. 
A pointer is a variable that stores the memory address of another variable.
• Pointers are used to access and manipulate memory directly.

• They are often used in programming languages like C and C++.

• Example: int *ptr; // declares a pointer to an integer variable
Answered by AI
Add your answer
Q2. What is stack ?
Ans. 
Stack is a data structure that follows Last In First Out (LIFO) principle, used for storing temporary data in a program.
• Stack is a linear data structure with two main operations: push (adds data) and pop (removes data).

• Example: function call stack in programming languages like C, where function calls are added and removed in a LIFO manner.

• Stack memory is used for local variables and function call management.

• Stack overf...read more
Answered by AI
Add your answer

C basics , data structure, logical questions.
, pointers

Percentage, speed, series, logical abulity, differnces

Q1. C programs, protocols, Embedded C, pointers
Add your answer
Q2. Strings swapping nibbles using c
Ans. 
Swapping nibbles of strings in C
• Use bitwise operations to swap the nibbles of each character in the string

• Iterate through each character in the string and swap the nibbles

• Ensure to handle edge cases like strings with odd length or non-hex characters
Answered by AI
Add your answer
Q3. I2c, can, spi, uart
Add your answer

Q1. Normal hr questions
Add your answer
Q2. Self, company details
Add your answer

Q1. Describe your project
Add your answer
Q2. Code snippets of c programming
Ans. 
Code snippets of c programming
• Use #include to include header files

• Use int main() to start the program

• Use printf() to print output

• Use scanf() to take input

• Use if-else statements for conditional execution

• Use loops like for, while, do-while for repetitive tasks

• Use arrays to store multiple values of same data type

• Use pointers to manipulate memory addresses

• Use structures to group related data

• Use functions to modularize code
Answered by AI
Add your answer
Q3. What is isr routine in c programming
Ans. 
ISR routine is a function that is executed in response to an interrupt signal.
• ISR stands for Interrupt Service Routine

• It is used to handle hardware interrupts

• ISR routines are written in C language

• They are executed when an interrupt signal is received

• ISR routines should be short and efficient

• They should not block other interrupts

• Examples of ISR routines include handling keyboard input or timer interrupts
Answered by AI
Add your answer

Q1. Why do you want to work for Wipro
Add your answer

Q1. Basic concepts of C++ language - I was asked to write programs for C-style string class
Add your answer
Q2. I was asked theory questions - design patterns which I have used during my work and to write sample code for these design patterns How to use virtual functions. Explain the concept
Add your answer
Q3. Data structures which I have learnt during college days STL classes which I have seen during my work
Ans. 
I have learned various data structures during my college days and have also worked with STL classes.
• I have knowledge of arrays, linked lists, stacks, queues, trees, and graphs.

• I have worked with STL classes like vector, list, map, set, etc.

• I am familiar with algorithms like sorting, searching, and traversal.

• I have experience in implementing data structures and algorithms in C++, Java, and Python.
Answered by AI
Add your answer

Q1. What are your salary expectations?
Ans. 
My salary expectations are based on my experience, skills, and the industry standards for Embedded Testing Engineers.
• Consider the average salary range for Embedded Testing Engineers in the industry

• Take into account your level of experience and expertise

• Factor in the location and cost of living

• Consider any additional benefits or perks offered by the company

• Be open to negotiation and discuss your expectations during the
Answered by AI
Add your answer
Q2. Share details of your previous job.
Ans. 
I worked as an Embedded Testing Engineer at XYZ Company.
• Performed testing and validation of embedded systems

• Developed test plans and test cases for various projects

• Executed test cases and reported defects

• Collaborated with cross-functional teams to resolve issues

• Conducted regression testing to ensure software stability

• Used tools like JIRA and Jenkins for test management and automation
Answered by AI
Add your answer
Q3. Why are you looking for a change?
Ans. 
I am looking for a change to explore new opportunities and challenges in my career.
• Seeking professional growth and advancement

• Wanting to work in a different industry or domain

• Desire for a better work-life balance

• Relocation or proximity to family

• Company culture or values misalignment

• Seeking better compensation or benefits
Answered by AI
Add your answer
Q4. Tell me about yourself.
Ans. 
I am an experienced Embedded Testing Engineer with a strong background in testing and debugging embedded systems.
• I have a Bachelor's degree in Electrical Engineering.

• I have worked on various projects involving testing and validation of embedded systems.

• I am proficient in programming languages like C and Python.

• I have experience in using testing tools and frameworks such as JUnit and Selenium.

• I have a strong understandi...read more
Answered by AI
Add your answer