Operating System: Purposes and Components Quiz
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Questions and Answers

What is the primary purpose of resource allocation in an operating system?

  • To maximize the utilization of system resources by multiple users or jobs (correct)
  • To provide a fair distribution of system resources based on user priority
  • To prevent unauthorized access to system resources
  • To ensure that all users have equal access to system resources

    • What is the primary purpose of the accounting function in an operating system?

  • To provide a user interface for system calls and services
  • To track resource usage for billing or usage statistics (correct)
  • To enforce access control and security policies
  • To manage the scheduling of processes and threads

    • Which of the following is NOT a common type of system call in an operating system?

  • Device management
  • File management
  • Process control
  • Memory management (correct)

    • What is the purpose of the separation of policy and mechanism in operating system design?

    <p>To allow the operating system to enforce different policies for different users or groups</p> Signup and view all the answers

    What is the purpose of the Simultaneous Peripheral Operation OnLine (SPOOL) feature in an operating system?

    <p>To provide a buffer for input/output operations, allowing the CPU to continue executing other tasks</p> Signup and view all the answers

    What is the primary role of the operating system in the development of modern software applications?

    <p>To provide a stable and consistent hardware abstraction layer for applications to run on</p> Signup and view all the answers

    What is the purpose of job scheduling in an operating system?

    <p>To determine the order in which jobs are executed by the CPU</p> Signup and view all the answers

    What is the primary benefit of multiprogramming in an operating system?

    <p>It improves system performance by utilizing idle CPU time</p> Signup and view all the answers

    What is the main purpose of the SPOOL (Simultaneous Peripheral Operation OnLine) technique?

    <p>To enable multiple users to share peripheral devices</p> Signup and view all the answers

    What is the significance of the separation between policy and mechanism in operating system design?

    <p>It facilitates the implementation of different resource allocation strategies</p> Signup and view all the answers

    Which of the following is a common approach in the development of modern operating systems?

    <p>Layered design, with well-defined interfaces between components</p> Signup and view all the answers

    What is the primary purpose of a job scheduler in an operating system?

    <p>To allocate CPU time to individual processes</p> Signup and view all the answers

    What is the main advantage of multiprogramming in an operating system?

    <p>It improves system throughput by keeping the CPU busy at all times</p> Signup and view all the answers

    What is the purpose of the SPOOL (Simultaneous Peripheral Operation OnLine) feature in an operating system?

    <p>To enable efficient use of slow I/O devices by decoupling them from the CPU</p> Signup and view all the answers

    What is the significance of the separation between policy and mechanism in operating system design?

    <p>It facilitates the development of portable and modular operating systems</p> Signup and view all the answers

    Which of the following is a common approach used in the development of modern operating systems?

    <p>Object-oriented design, with inheritance and polymorphism</p> Signup and view all the answers

    What is the primary responsibility of the memory management component in an operating system?

    <p>Allocating and deallocating memory for processes and managing virtual memory</p> Signup and view all the answers

    Study Notes

    • OS services include resource allocation, accounting, protection and security, and system calls.
    • System calls serve as a user interface to OS services, available in assembly-language instructions or high-level languages like C.
    • Types of system calls include process control (e.g., fork(), exit()), file management (e.g., open(), read()), and device management (e.g., ioctl(), read()).
    • The main objectives of an operating system are to provide an environment for program execution and development, manage resources, and control access.
    • OS components include process management, main-memory management, secondary-storage management, file management, I/O system management, protection system, networking, and command-interpreter system.

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    Test your knowledge on the purposes and components of an operating system including process management, memory management, file management, and more.

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