Q. If the kernel is single threaded, then any user level thread performing a blocking system call will :

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Q. Because the kernel thread management is done by the Operating System itself :

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Q. If a kernel thread performs a blocking system call, ____________

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Q. The model in which one kernel thread is mapped to many user-level threads is called :

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Q. The model in which one user-level thread is mapped to many kernel level threads is called :

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Q. In the Many to One model, if a thread makes a blocking system call :

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Q. In the Many to One model, multiple threads are unable to run in parallel on multiprocessors because :

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Q. The One to One model allows :

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Q. In the One to One model when a thread makes a blocking system call :

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Q. Which of the following is the drawback of the One to One Model ?

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Q. When is the Many to One model at an advantage ?

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Q. In the Many to Many model true concurrency cannot be gained because :

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Q. In the Many to Many model when a thread performs a blocking system call :

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Q. Which of the following system calls does not return control to the calling point, on termination ?

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Q. Which of the following system calls transforms executable binary file into a process ?

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Q. Which of the following calls never returns an error ?

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Q. A fork system call will fail if :

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Q. If a thread invokes the exec system call,

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Q. If exec is called immediately after forking,

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Q. If a process does not call exec after forking,

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