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Junior Embedded Software Engineer Interview Questions

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2,888 junior embedded software engineer interview questions shared by candidates

1) In which language are you comfortable with ? 2) Explain Volatile Keyword 3) Use of static variable 4) Compilation and Execution flow of C Program 5) Meaning of dangling pointer and memory leakage? 6) Structure alignment, structure padding 7) Bitwise operators 8) Difference between microcontroller and microprocessor 9) Diff between I/O Mapped I/O and Memory mapped I/O 10) Explain in brief about RS232, I2C, SPI 11) Explain watchdog timer 12) What is an interrupt in microcontroller? 13)What is OS? 14) What is System Call? how is it executed? 15)Linux ipc mechanism 16) paging 17)starvation and deadlock 18) Difference between GPOS and RTOS 19) Priority inversion 20) Jiffies ? 21) hard interrupts and soft interrupts
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Embedded Software Engineer

Interviewed at Capgemini

4.2★
Jul 17, 2020

1) In which language are you comfortable with ? 2) Explain Volatile Keyword 3) Use of static variable 4) Compilation and Execution flow of C Program 5) Meaning of dangling pointer and memory leakage? 6) Structure alignment, structure padding 7) Bitwise operators 8) Difference between microcontroller and microprocessor 9) Diff between I/O Mapped I/O and Memory mapped I/O 10) Explain in brief about RS232, I2C, SPI 11) Explain watchdog timer 12) What is an interrupt in microcontroller? 13)What is OS? 14) What is System Call? how is it executed? 15)Linux ipc mechanism 16) paging 17)starvation and deadlock 18) Difference between GPOS and RTOS 19) Priority inversion 20) Jiffies ? 21) hard interrupts and soft interrupts

• What is Cache? Explain the basics of it and how does it work at hardware level. • Explain cache mapping • Explain cache coherence • What is interrupt? And what does the CPU do when an interrupt occurs? • Explain registers in Arm cortex processor • What is Cache? How does it work? • Explain cache mapping • Explain cache coherence • What is interrupt? And what does the CPU do when an interrupt occurs? • Explain registers in Arm cortex processor • What does r14 register do? • What is context switch and how does it happen? • Explain the usage of Volatile keyword. • Explain the usage of Extern keyword • Explain the usage of Static keyword with examples • What happens if a variable has both extern and static keyword? • What is DMA? • What is MMU? • What is Mutex? What is semaphore? What is the difference between semaphore and a mutex? and few more questions
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Embedded Software Intern

Interviewed at Arm

4.5★
Sep 10, 2020

• What is Cache? Explain the basics of it and how does it work at hardware level. • Explain cache mapping • Explain cache coherence • What is interrupt? And what does the CPU do when an interrupt occurs? • Explain registers in Arm cortex processor • What is Cache? How does it work? • Explain cache mapping • Explain cache coherence • What is interrupt? And what does the CPU do when an interrupt occurs? • Explain registers in Arm cortex processor • What does r14 register do? • What is context switch and how does it happen? • Explain the usage of Volatile keyword. • Explain the usage of Extern keyword • Explain the usage of Static keyword with examples • What happens if a variable has both extern and static keyword? • What is DMA? • What is MMU? • What is Mutex? What is semaphore? What is the difference between semaphore and a mutex? and few more questions

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