Embeded Interview Questions

Embeded Interview Questions

1. Can structures be passed to the functions by value?
2. Why cannot arrays be passed by values to functions?
3. Advantages and disadvantages of using macro and inline functions?
4. What happens when recursion functions are declared inline?
5. Scope of static variables?
6. Difference between object oriented and object based languages?
7. Multiple inheritance - objects contain howmany multiply inherited ancestor?
8. What are the 4 different types of inheritance relationship?
9. How would you find out the no of instance of a class?
10. Is java a pure object oriented language? Why?
11. Order of constructor and destructor call in case of multiple inheritance?
12. Can u have inline virtual functions in a class?
13. When you inherit a class using private keyword which members of base class are visible to the derived class?
14. What is the output of printf("\nab\bcd\ref"); -> ef
15. #define cat(x,y) x##y concatenates x to y. But cat(cat(1,2),3) does not expand but gives preprocessor warning. Why?
16. Can you have constant volatile variable? Yes, you can have a volatile pointer?
17. ++*ip increments what? it increments what ip points to
18. Operations involving unsigned and signed — unsigned will be converted to signed
19. a+++b -> (a++)+b
20. malloc(sizeof(0)) will return — valid pointer
21. main() {fork();fork();fork();printf("hello world"); } — will print 8 times.
22. Array of pts to functions — void (*fptr[10])()
23. Which way of writing infinite loops is more efficient than others? there are 3ways.
24. # error — what it does?
25. How is function itoa() written?
26. Who to know wether systemuses big endian or little endian format and how to convert among them?
27. What is interrupt latency?
28. What is forward reference w.r.t. pointers in c?
29. How is generic list manipulation function written which accepts elements of any kind?
30. What is the difference between hard real-time and soft real-time OS?
31. What is interrupt latency? How can you recuce it?
32. What is the differnce between embedded systems and the system in which rtos is running?
33. How can you define a structure with bit field members?
34. What are the features different in pSOS and vxWorks?
35. How do you write a function which takes 2 arguments - a byte and a field in the byte and returns the value of the field in that byte?
36. What are the different storage classes in C?
37. What are the different qualifiers in C?
38. What are the different BSD and SVR4 communication mechanisms

Embeded Interview --8086 family interview questions

Embeded Interview --8086 family interview questions Microcontrollers and Embeded Systems
DESIN ENGINEER - Flytech Engineering - Chennai
Embedded Design Engineer - Autolite Enterprise -Rajkot
Faculty for Fashion Design - Liad institute of art & design - Ahmedabad
What is an interrupt?
What is ALE?
What are set up time & hold time constraints?
What is the difference between MOV and MVI?
How do you convert XOR to XNOR?
Why are program counter and stack pointer 16-bit registers?
What is PSW?
Explain RC circuit’s charging and discharging?
8085 is how many bit microprocessor?
What happens during DMA transfer?
What is flag, bus?
What is the immediate addressing mode?
What will you do if the delay of the combinational
Which type of architecture 8085 has?
What do you mean by wait state?
What are the different Adder circuits you studied?
How many memory locations can be addressed
What are the different addressing modes in 8085?
What is program counter use?
How do you detect if two 8-bit signals are same?
What is the function of accumulator?
What are the different flags in 8085?
Which line will be activated when an output device
How do you detect a sequence of "1101" arriving
Why is data bus bi-directional?
What are the functions of RIM, SIM, IN?
What is a program counter?
Explain the working of a binary counter?
What is the difference between 80286 and 80287?
What does it mean by embedded system?
Explain the functions of ALE in 8085.
Draw a Transmission Gate-based D-Latch?
What are tri-state devices and why they are
What is wait state need?