CSE MCQs :: OS MCQs
- If a kernel thread performs a blocking system call, ____________________.
- Which of the following is FALSE ?
- The model in which one kernel thread is mapped to many user-level threads is called :
- The model in which one user-level thread is mapped to many kernel level threads is called :
- In the Many to One model, if a thread makes a blocking system call :
- In the Many to One model, multiple threads are unable to run in parallel on multiprocessors because :
- The One to One model allows :
- In the One to One model when a thread makes a blocking system call :
- Which of the following is the drawback of the One to One Model ?
- When is the Many to One model at an advantage ?
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A.
the kernel can schedule another thread in the application for execution.
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B.
the kernel cannot schedule another thread in the same application for execution.
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C.
the kernel must schedule another thread of a different application for execution.
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D.
the kernel must schedule another thread of the same application on a different processor.
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A.
Context switch time is longer for kernel level threads than for user level threads
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B.
User level threads do not need any hardware support
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C.
Related kernel level threads can be scheduled on different processors in a multiprocessor system
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D.
Blocking one kernel level thread blocks all other related threads
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