Operating System Services Quiz
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Questions and Answers

Which approach do most modern operating systems take?

  • Pure monolithic model
  • Hybrid model combining multiple approaches (correct)
  • Pure microkernel model
  • Layered model with no combination

    • What is a key feature of the Linux and Solaris kernels?

  • Monolithic architecture only
  • Microkernel structure
  • Layered architecture
  • Modular design for dynamic loading (correct)

    • In Mac OS X, what components make up the kernel?

  • Aqua UI and Cocoa programming environment
  • Mach microkernel and BSD Unix parts (correct)
  • Java and Quicktime
  • I/O kit and kernel extensions

    • Which component is part of the Mac OS X kernel structure?

    <p>BSD Mach</p> Signup and view all the answers

    What differentiates the handheld iOS from Mac OS X?

    <p>iOS runs on different CPU architecture</p> Signup and view all the answers

    Which operating system mostly follows a monolithic architecture with microkernel for subsystem personalities?

    <p>Windows</p> Signup and view all the answers

    What is the purpose of I/O kit in the Mac OS X kernel?

    <p>To facilitate communication with external devices</p> Signup and view all the answers

    Which component is responsible for enabling dynamically loadable modules in the Linux and Solaris kernels?

    <p>Modular design</p> Signup and view all the answers

    What part of the Mac OS X kernel enables the addition of extra functionality through modules?

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

    What distinguishes iOS from Mac OS X in terms of application compatibility?

    <p>iOS is based on a different CPU architecture than Mac OS X</p> Signup and view all the answers

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

    <p>To provide a high-level interface for applications to access OS services</p> Signup and view all the answers

    In the context of operating system services, what does resource allocation primarily involve?

    <p>Allocating CPU cycles, memory, and other resources to multiple users or jobs</p> Signup and view all the answers

    What role does an Application Programming Interface (API) play in software communication?

    <p>It enables two software programs to interact with each other by defining functions they can use</p> Signup and view all the answers

    What is the main purpose of caching in storage systems?

    <p>To copy information into faster storage for quicker access</p> Signup and view all the answers

    In a uniprocessor system, what role do special-purpose processors play?

    <p>They serve as device-specific processors or I/O processors</p> Signup and view all the answers

    What is the purpose of Direct Memory Access (DMA) in computer systems?

    <p>To enable efficient data transfer between memory and devices</p> Signup and view all the answers

    What is a fundamental service provided by operating systems for user interactions?

    <p>Facilitating a user interface</p> Signup and view all the answers

    Which operation is vital for an operating system to perform when running a program?

    <p>Loading the program into memory</p> Signup and view all the answers

    What is a primary function that a running program may require from the operating system?

    <p>I/O device communication</p> Signup and view all the answers

    Which service is necessary for programs to interact with files and directories in an operating system?

    <p>Managing file permissions</p> Signup and view all the answers

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