Process Management and Network Architectures in Operating Systems Quiz
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Questions and Answers

What is the main function of an operating system?

  • Optimizing the performance of network architectures
  • Controlling the execution of application programs and providing an interface between applications and hardware (correct)
  • Maintaining the security of the hardware and software components
  • Managing shared resources and controlling process scheduling

    • In the layered model of operating systems, what is the main function of the Kernel?

  • Controls the execution of application programs (correct)
  • Provides an interface between applications and hardware
  • Manages memory allocation and deallocation
  • Contains the most frequently used functions and serves as the nucleus

    • What term is used to describe the portion of the operating system that is in main memory?

  • Kernel (correct)
  • Hardware
  • Shell
  • Applications

    • According to the layered model, where does the operating system reside in relation to the hardware and applications?

    <p>Between hardware and applications</p> Signup and view all the answers

    Which scheduling algorithm aims to execute the shortest job first?

    <p>Shortest Job First (SJF)</p> Signup and view all the answers

    What aspect of an operating system does Process Control Block (PCB) relate to?

    <p>Process scheduling and management</p> Signup and view all the answers

    What are the functions of an operating system?

    <p>Process Management, Memory Management, and File Management</p> Signup and view all the answers

    What does a Process Control Block (PCB) contain?

    <p>State, Priority &amp; Accounting information, and Memory pointers</p> Signup and view all the answers

    What is the purpose of the fork system call in Unix?

    <p>Creates a new process and replaces its memory space with a new program</p> Signup and view all the answers

    What is the significance of interprocess communication (IPC) in a system?

    <p>Facilitates information sharing and computation speedup</p> Signup and view all the answers

    What is a multi-threaded process?

    <p>An executing program with one or more threads running within its context</p> Signup and view all the answers

    What are the main elements contained in a Process Control Block (PCB)?

    <p>State, Identifier, and Memory pointers</p> Signup and view all the answers

    Why do cooperating processes need interprocess communication (IPC)?

    <p>To share data and achieve computation speedup</p> Signup and view all the answers

    What is the purpose of the exec system call after a fork in Unix?

    <p>Replaces the process’ memory space with a new program</p> Signup and view all the answers

    What are the reasons for cooperating processes to use interprocess communication (IPC)?

    <p>Information sharing, Computation speedup, and Convenience</p> Signup and view all the answers

    What does a multi-threaded process consist of?

    <p>One or more threads running in the context of an executing program</p> Signup and view all the answers

    What is the main function of an operating system?

    <p>Controlling the execution of application programs and providing an interface between applications and hardware</p> Signup and view all the answers

    Which term is used to describe the portion of the operating system that is in main memory?

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

    What is a multi-threaded process?

    <p>A process that consists of multiple threads of execution within a single process</p> Signup and view all the answers

    What does a Process Control Block (PCB) contain?

    <p>Information about each process in the system</p> Signup and view all the answers

    According to the layered model, where does the operating system reside in relation to the hardware and applications?

    <p>Above hardware and below applications</p> Signup and view all the answers

    Which of the following is the main function of a Process Control Block (PCB) in an operating system?

    <p>Allowing support for multiple processes</p> Signup and view all the answers

    What is the significance of interprocess communication (IPC) in the context of cooperating processes within an operating system?

    <p>Enabling processes to share information and affect each other</p> Signup and view all the answers

    In the context of multi-threaded processes, what is the purpose of a thread in an operating system?

    <p>Serving as the basic unit to which processor time is allocated</p> Signup and view all the answers

    What does the fork system call followed by the exec system call achieve in Unix?

    <p>Replaces the memory space of a process with a new program</p> Signup and view all the answers

    What is the main reason for a Process Control Block (PCB) to contain memory pointers in an operating system?

    <p>To track the location of different memory segments in RAM</p> Signup and view all the answers

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