VXWORKS INTERVIEW QUESTIONS ANSWERS PDF

Alison Doyle Updated February 26, Are you ready to ace your upcoming job interview? Since these questions are so common, hiring managers will expect you to be able to answer them smoothly and without hesitation. Your responses will be stronger if you prepare in advance , know what to expect during the interview , and have a sense of what you want to focus on. Knowing that you prepared will boost your confidence, help you minimize interview stress and feel more at ease.

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TaskDelay Wind vxworks puts a task in delayed state for specified ticks Nanosleep posix : puts process in sleep for specified nano seconds How to enable round robin scheduling?

Which is the default scheduling algorithm in Vxworks? Interrupt driven Priority based pre-emptive scheduling policy Draw the task state diagram. Ref: vxworks manual chapter 1. Binary Mutex Any task or isr can release semaphore the task which owns has to release the semaphore No recursion and deletion safety yes sem flush for multiple task synchronization no can be created with full or empty as initial state by default full Total task priority levels in Vxworks.

Total task priority levels in vxworks To make a shared code as reentrant use taskvariables. If any global variable used in the code, in order to maintain a private copy of that variable with respect to a task,use taskvarAdd with that global variable.

The changes made to the global variable in one task will not be reflected in other task How often scheduler comes into picture? When a new task is created When ever context switching happens When one task completes execution

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