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    Question

    What is the primary purpose of a system

    call?
    A To allow user programs to directly access hardware resources. Correct Answer Incorrect Answer
    B To provide an interface for user programs to request services from the operating system. Correct Answer Incorrect Answer
    C To manage the execution of threads within a process. Correct Answer Incorrect Answer
    D To facilitate communication between different user-level applications. Correct Answer Incorrect Answer
    E To compile and link user-written code. Correct Answer Incorrect Answer

    Solution

    System calls are the programmatic interface to the services provided by the operating system. They allow user-level applications to perform privileged operations like I/O, process creation, and memory management.

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