System Libraries and System Calls
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Questions and Answers

What is the primary role of system libraries in making system calls?

  • To collect and arrange system-call arguments in the necessary form (correct)
  • To schedule system calls for concurrent execution
  • To execute system calls directly in the kernel
  • To manage memory allocation for system calls
  • What is the primary function of user utilities in a Linux system?

  • To execute system calls directly in the kernel
  • To support basic system operation without requiring elevated privileges (correct)
  • To manage system initialization and administration
  • To provide advanced control of file I/O
  • What is the role of the shell in a Linux system?

  • To manage system initialization and administration
  • To provide advanced control of file I/O
  • To execute system calls directly in the kernel
  • To serve as the standard command-line interface (correct)
  • What is the purpose of the buffered file-handling functions in the system libraries?

    <p>To offer advanced control of file I/O</p> Signup and view all the answers

    What type of routines are also provided by the system libraries?

    <p>Routines that do not correspond to system calls, such as sorting algorithms</p> Signup and view all the answers

    What is the purpose of system utilities in a Linux system?

    <p>To initialize and administer the system</p> Signup and view all the answers

    What is the term used by Linux to describe the privileged mode in which kernel code executes?

    <p>Kernel mode</p> Signup and view all the answers

    What is the primary reason why Linux retains the monolithic kernel architecture?

    <p>For performance benefits</p> Signup and view all the answers

    What is the advantage of the monolithic kernel in terms of data passing and requests between subsystems?

    <p>It uses relatively cheap C function invocation</p> Signup and view all the answers

    Where is operating-system-support code that does not need to run in kernel mode placed in Linux?

    <p>In system libraries and user mode</p> Signup and view all the answers

    Which of the following components are included in the single address space of the Linux kernel?

    <p>All kernel code, including device drivers, file systems, and networking code</p> Signup and view all the answers

    What is the characteristic of user mode in Linux, compared to kernel mode?

    <p>It has access to a controlled subset of system resources</p> Signup and view all the answers

    What is the primary function of the Linux kernel?

    <p>To provide system services for arbitrated and protected access to hardware resources</p> Signup and view all the answers

    What is the role of system libraries in the Linux operating system?

    <p>To allow applications to make system calls to the Linux kernel</p> Signup and view all the answers

    What is the purpose of transferring control from unprivileged user mode to privileged kernel mode?

    <p>To implement system calls and provide access to hardware resources</p> Signup and view all the answers

    What is the benefit of the Linux kernel's ability to load modules dynamically at run time?

    <p>It provides true independence and flexibility for loadable components</p> Signup and view all the answers

    What is the relationship between the Linux kernel and the system libraries?

    <p>Applications make calls to the system libraries, which in turn call the kernel</p> Signup and view all the answers

    What is the primary function of the Linux kernel in terms of process management?

    <p>To provide system services for arbitrated and protected access to hardware resources</p> Signup and view all the answers

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