Embedded Interview Questions 2024

I remember getting my first?“Embedded Interview”?after countless hours of CV editing, formatting and writing customized cover letters while applying to Job portals and startup websites. It was exciting all nevertheless the pressure to ace my interview got me wishing if I could read Minds like

Xavier!!!

Though, wishful thinking didn’t help me at all!!!

What really?helped?me were a compilation of my?university scrapbooks?and?online blogs?to get my technical basics right, so?this post is about?list of questions which might help individuals whether?freshers or little seasoned Engineers?who are?preparing for their Interviews.

I hope these embedded system interview questions will be helpful to you. If you have any other important questions related to the embedded systems and concepts or have better answers, then please write in the comment box. I will make sure to add edits.

You can visit my website for answer: Embed Threads

Content

Embedded C Interview Questions for Freshers.

• What are the components of an Embedded system?
• Difference Between RISC and CISC Processor?
• Difference between Von-Neuman and Harvard Architecture?
• Difference between BJT and MOSFET?
• Difference Between Microcontroller and Microprocessor?
• What is the Difference between Oscillator and Crystal Oscillator?
• What are the different types of Buses used by Embedded Systems?
• What is the boot-loader?
• Difference between UART, SPI and I2C?
• List various timers in embedded systems?
• Explain what is a Watchdog Timer?
• What is the need of pull up and pull down resistor in circuit?

Embedded C Programming Interview Questions.

• Difference between C and Embedded C?
• Difference between compiler and interpreter?
• Difference between while(1) and while(0) in C language?
• Difference Between Structure and Array in C?
• Difference Between Structure and Union in C?
• Explain What Are The Different Storage Classes In C?
• Explain What Are The Different Qualifiers In C?
• What Is Pass By Value And Pass By Reference?
• Which statement is faster ++I or i+1?

Embedded C Interview Questions for Experienced?Engineers.

• What do you understand by startup code?
• Functions of Startup file?
• What are the differences between process and thread?
• What is ISR?
• Role of Interrupt Vector Table in Interrupt Processing?
• Explain What Is Interrupt Latency? How Can We Reduce It?
• What are the uses of the Keyword Static?
• What does “const int x;” mean?
• Where are constant variables stored in memory?
• How can you protect a character pointer by some accidental modification with the pointer address?
• Can a variable be volatile and const both?
• What is a Null pointer?
• What is the size of a pointer?
• When does a segmentation fault occur?
• What Is Difference Between Using A Macro And Inline Function?
• How can you use a variable in a source file defined in another source file?
• Little and Big Endian Mystery
• List the 4 levels of testing in Embedded Systems.
• What is multithreading and multiprocessing?
• What is Mutex?
• What is Semaphore?
• What are the 2 types of Semaphore?
• Is there any difference between Deadlock and Starvation?
• Difference between RS232 and RS485 (RS232 vs RS485)?
• What is CAN?
• Why CAN?
• Standard CAN vs Extended CAN
• How do CAN bus modules communicate?
• Why Can Is Having 120 Ohms At Each End?