Top 10 Interview Questions in Embedded System with Answers | PTInstitute

1. Professional Training Institute One of the Best Embedded Training Institute in Bangalore www.ptinstitute.in

2. Top 10 Interview Questions in Embedded System with Answers By Embedded Training Institute in Bangalore

3. Company Lorem ipsum dolor sit amet, consectetur adipiscing elit, sed do eiusmod tempor incididunt ut labore et dolore magna aliqua. Ut enim ad minim veniam, quis nostrud Context Ut enim ad minim veniam, quis nostrud exercitation Duis aute irure dolor in reprehenderit in voluptate velit Problem statement Excepteur sint occaecat cupidatat non proident, sunt in culpa qui officia deserunt mollit anim id est laborum. The problem

4. Challenge 1 Every one very curious about the interview questions because you don’t know what type of questions Recruiter will ask so our embedded training institute in Bangalore is offering top 10 questions for students who are eager to get a job in the embedded field. With Professional Training Institute, You can get embedded system training which is 100% practical based training so you can get a place soon. Here see top 10 interview question in the embedded system.

5. Beginner level (Fresher) Volatile is the keyword used for optimization by the compiler during code compilation. We are conveying the message to the compiler “Hey look this pieces of code can be modified externally so don’t optimized this code associated with the current variable.” 1) What is the use of the volatile keyword?

6. The const keyword makes sure that the value of the variable declared as constant can’t be changed. This statement holds true in the scope of the full program. So if by mistake user tried to write on const variable compiler itself will give the error, and say read-only variable can’t change. 2) Can a variable be both const and volatile?

7. A) Scope of Static Variable If the variable is defined in local scope then the scope of static variable will be within a function. B) Life of Static Variable Life of static variable is throughout the program. No matter it is defined in the local scope or global scope. 3) What is a static variable? Or what is a static keyword?

8. The scope of the global variable is throughout the program, while the scope of a static variable is within the file. Life of both variables (static variable and global) is throughout the program. Here understand question carefully. Questions are asking global static variable. It means is variable is saved in the file scope. Within file any function can use that variable, this variable will not be available in any other files. 4) What is the difference between a global static variable and a global variable?

9. C language is having many system-defined data types like char, int, float, double, long etc. we are also having an array of the above data types, which will help us to save more than many variables in contiguous locations. Read More 5) What is the difference between structure and union?

10. A function pointer is a variable, which can hold the address of the function. This is used in callbacks. Since C is sequential language. It processes one by one. However, for some cases, we may need to call a function based on conditions. 6) What is the function pointer, write delectation (prototype of the following function pointer)?

11. The size of a character is 1 byte. Size of an integer is 4 bytes. Size of integer pointer and character is 8 bytes on a 64-bit machine and 4 bytes on 32-bit machine. Size of pointers does not depend upon the type of parameters, because pointer needs to save memory address, it does not matter what we are going to save them or from that address who many bytes we want. We just need to save the address. 7) What is size of character, integer, integer pointer, character pointer?

12. Interrupt latency is the time required for an ISR responds to an interrupt. When interrupts occur in the embedded system, then the processor finishes current instruction, save the value of the program counter and jump to the required ISR. Sometime if the processor is busy and serving another interrupt then another interrupt may be pending till processor/controller is gets free from current ISR. 8) What is interrupt latency?

13. In order to reduce interrupt latency, while designing the system we should take a minimum time as possible in the ISR. We should divide our ISR into two part, The top half and bottom half. Top half should be very small and control should come out as soon as possible, normally in this section, we just copy the data, and generate some flags. 9) How to reduce interrupt latency?

14. In C language we are having many system-defined data types like int, char, float, double etc. Size of each one is fixed like it is 4 bytes, char is one byte, the float is 4 bytes etc. We are also having user-defined data types like struct, union. Here we struct reserve memory for each of its elements while union reserve memory for the highest data types. 10) What is the dynamic memory allocation? Where we can use this?

15. Challenge 1 We are a Professional Training Institute provides complete hands-on practical training in the embedded system, if you looking for embedded system training in Bangalore then choose us, as you go through our review and check what our old student is saying, they believe we are top embedded institute in Bangalore. Best of luck for your future. Learn More Embedded