Operating System Concepts: Chapter 3 Processes

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Questions and Answers

What is a process in the context of an operating system?

  • A program that is stored on the hard disk
  • A program that is ready to be executed
  • A program that has not been compiled yet
  • A program in execution (correct)

Which system component is responsible for scheduling processes in an operating system?

  • Processor
  • Kernel (correct)
  • RAM
  • Hard disk

What is the purpose of interprocess communication (IPC) in operating systems?

  • To facilitate communication and data sharing between processes (correct)
  • To execute processes sequentially
  • To store processes temporarily
  • To terminate processes

Which method involves using pipes and POSIX shared memory for interprocess communication?

<p>IPC in Shared-Memory Systems (A)</p> Signup and view all the answers

In the context of client-server communication, what is used to facilitate communication between client and server programs?

<p>Remote procedure calls (C)</p> Signup and view all the answers

Which phase of a program's execution must progress in sequential fashion?

<p>Execution phase (B)</p> Signup and view all the answers

What is the program considered when it is stored on disk?

<p>Passive entity (B)</p> Signup and view all the answers

Which section contains the memory dynamically allocated during runtime?

<p>Heap (C)</p> Signup and view all the answers

During which state is the process waiting for some event to occur?

<p>Waiting (A)</p> Signup and view all the answers

Which of the following is NOT included in the Process Control Block (PCB)?

<p>Hard disk location (B)</p> Signup and view all the answers

What is the term used for having multiple program counters per process?

<p>Multi-threading (A)</p> Signup and view all the answers

In which section are the global variables stored in a C program?

<p>Data section (C)</p> Signup and view all the answers

What triggers the execution of a program loaded into memory?

<p>Both a and b (C)</p> Signup and view all the answers

What describes a process that has finished its execution?

<p>Terminated (B)</p> Signup and view all the answers

'Threads' in a process represent:

<p>Multiple locations within the same program counter (C)</p> Signup and view all the answers

'Program counter' in the Process Control Block (PCB) refers to:

<p>Location of instruction to next execute (B)</p> Signup and view all the answers

Flashcards

What is a process?

A running instance of a program.

What schedules processes?

The core of the operating system, responsible for managing system resources.

What is Interprocess Communication (IPC)?

Enables processes to exchange data and synchronize their execution.

IPC via Shared-Memory

A method using shared memory regions to facilitate communication between processes.

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What are Remote Procedure Calls?

A protocol used to request a service from a program located on another computer on a network.

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Program's Serial Phase

The phase where instructions are executed one after another.

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Program on Disk

A program that is stored on a non-volatile memory such as a hard drive.

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What is the Heap?

Memory allocated to a process during runtime.

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Process 'Waiting' State

The process condition when it is paused, awaiting external input.

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What is in a Process Control Block (PCB)?

A data structure containing information about the process's state, resources, and identity.

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What is Multi-threading?

When a process has many instruction streams that can run concurrently.

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Global Variables Section

A section specifically reserved for global variables within a program's memory space.

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Terminated Process

A process that has completed its execution.

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Threads Represent:

Multiple independent execution contexts within a single process.

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What is 'Program Counter'?

A register that holds the address of the next instruction to be executed.

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