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  • Question
  • What is mutex?


  • Correct Answer
  • Mutex is a program object that allows multiple program threads to share the same resource, such as file access, but not simultaneously When a program is started a mutex is created woth a unique name After this stage, any thread that needs the resource must lock the mutex from other threads while it is using the resource the mutex is set to unlock when the data is no longer needed or the routine is finished 


  • More questions

    • 1. In the relational model, relationships between relations or tables are created by using:

    • Options
    • A. composite keys.
    • B. determinants.
    • C. candidate keys.
    • D. foreign keys.
    • Discuss
    • 2. What does microprocessor speed depend on?
    • Discuss
    • 3. What does RSI stand for?
    • Discuss
    • 4. Which Stack is used in 8086?
    • Discuss
    • 5. What is object repository?
    • Discuss
    • 6. Which is the Stack used in 8085?
    • Discuss
    • 7. What does GUI stand for?
    • Discuss
    • 8. What is the main reason the OSI Model was created?
    • Discuss
    • 9. Ethernet uses which topology

    • Options
    • A. Star
    • B. Bus
    • C. Twisted pair
    • D. Both B & C
    • Discuss
    • 10. What are various scheduling queues?
    • Discuss


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