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21st December 2015, 12:11 PM
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Join Date: May 2012
Re: RTOS Interview Questions

Some interview questions of Real-Time Operating System (RTOS) as you need it for preparation for the interview are as follows:

What do you mean by a real-time system?

What is an Embedded system? Differentiate between embedded system and real-time system.

Explain real-time communications.

Define Hard and Soft real-time system.

Draw structure or block diagram of Real time system OR the components of the RTS.

Describe Trigger Generator?

Define real time database and give its types.

Explain all types of task classes in real time system?

Define TargetOS.

What are the different types of semaphores in vxworks RTOS? Which is the fastest?

What is priority inversion ? why priority inversion occurs?

What are the solutions for priority inversion ?

What is super loop ?

What is the difference between Structure and union? Where do we use union?

Convert number 2 --> 37 without using any other operator but bitwise ?

Set , Get , Clear ,Toggle , Display Bits ?

what is a non re-entrant code?

how is RTOS different from other OS?

what is a core dump?

what is stack overflow and heap overflow?

windows also has multiple processes has process priotities switches between multiple

process, how RTOS is different from that?

how will u create a process in UNIX or our OS OSE?

what is a flat memory model and a shared memory model?

what is paging, segmentation y do we need it?

write a code to check whether a stack grows upwards or downwards?

why do we require semaphore?

write a small piece of code protecting a shared memory variable with a semaphore?

what are the different types of semaphores and where they are used?

what are the different inter process communications?

what is present in .bss

what are the different segments of a program (code, data,stack,heap etc)


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