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Comparison of UNIX and Windows File System Commands
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Comparison of UNIX and Windows File System Commands

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Questions and Answers

What does the field in the i-node keep track of in UNIX?

  • The owner of the file
  • The file's creation date
  • The number of directory entries pointing to the file (correct)
  • The file's size in bytes
  • Which type of system structure includes a main program that invokes service procedures?

  • Client-server model
  • Microkernels
  • Monolithic systems (correct)
  • Layered systems
  • What is a key characteristic of microkernels in operating system structure?

  • They implement all services in kernel space
  • They have a monolithic architecture
  • They do not support client-server models
  • They only provide essential mechanisms such as IPC and memory management (correct)
  • In the client-server model over a network, what role does the server typically play?

    <p>It provides resources or services to clients</p> Signup and view all the answers

    What is the main function of utility procedures in monolithic systems?

    <p>Assist the service procedures in carrying out system calls</p> Signup and view all the answers

    How do virtual machines differ from microkernels in operating system structure?

    <p>Virtual machines provide an abstraction layer that allows running multiple OS instances</p> Signup and view all the answers

    What is the primary purpose of system calls in an operating system?

    <p>To request services from the operating system's kernel</p> Signup and view all the answers

    How are system calls typically implemented in an operating system?

    <p>As hardware interrupts</p> Signup and view all the answers

    What role do system calls play in maintaining the security of an operating system?

    <p>They provide a secure way for user-level programs to access kernel services</p> Signup and view all the answers

    In what way do user-level programs benefit from using system calls?

    <p>By requesting services from the operating system's kernel</p> Signup and view all the answers

    Which of the following functions is NOT typically associated with system calls?

    <p>Memory allocation and deallocation</p> Signup and view all the answers

    Why are system calls considered critical for the functioning of an operating system?

    <p>Because they provide a secure way for user programs to access OS services</p> Signup and view all the answers

    What is the purpose of a system call like link in UNIX?

    <p>Create a new directory entry with the i-number of an existing file</p> Signup and view all the answers

    What information does the i-number of a file in UNIX provide?

    <p>Index into a table of i-nodes containing file details</p> Signup and view all the answers

    How are directories represented in UNIX according to the provided text?

    <p>As a file with (i-number, ASCII name) pairs</p> Signup and view all the answers

    What happens if two directory entries have the same i-number in UNIX?

    <p>Both entries refer to the same file</p> Signup and view all the answers

    Why does a directory need a more complicated structure to support long file names in modern UNIX systems?

    <p>To be able to accommodate longer file names</p> Signup and view all the answers

    Which statement best describes what the unlink system call does in the context of UNIX?

    <p>Removes a directory entry while keeping the file intact</p> Signup and view all the answers

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