Operating System Chapter 3: Processes Quiz

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Questions and Answers

What is the primary function of the stack in a process in an operating system?

Store temporary data and function parameters (correct)

Store dynamically allocated memory

Store the program code

Store global variables

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

A program that contains only the text section

A program in execution (correct)

A program waiting to be executed

A program at rest

Which of the following is NOT a part of a process in an operating system?

Only the program code, also called text section (correct)

Heap containing memory dynamically allocated during process run time

Stack containing temporary data

Data section containing global variables

In terms of an operating system, which type of system executes user programs or tasks?

Time-shared system Signup and view all the answers

What is the main difference between a batch system and a time-shared system in an operating system?

The user interaction with the system Signup and view all the answers

Which part of a process in an operating system contains memory dynamically allocated during process runtime?

Heap containing memory dynamically allocated during process runtime Signup and view all the answers

What is the main difference between a program and a process?

A program is a file containing instructions, while a process is an active entity with a program counter and associated resources. Signup and view all the answers

When does a program become a process?

When it is loaded into memory and its execution is started. Signup and view all the answers

Which state represents the condition in which the process has finished execution?

Terminated Signup and view all the answers

What information does the Process Control Block (PCB) contain for each process?

Information associated with each process, such as process state, program counter, CPU registers, etc. Signup and view all the answers

In the context of threads, what does the PCB include for each thread?

Information for each thread, such as thread state and time slice, in addition to changes throughout the system to support threads. Signup and view all the answers

What benefit do multiple threads provide on multicore systems?

They enable processes to execute instructions in parallel. Signup and view all the answers

What allows a process to perform more than one task at a time in modern operating systems?

Supporting threads within the process. Signup and view all the answers

How is a process represented in Linux according to the text?

It is represented by a C structure called task_struct. Signup and view all the answers

What indicates that a process is waiting for some event to occur?

"waiting" state Signup and view all the answers

Study Notes

Process in Operating System

A process is a program in execution, including the current activity, memory, and system resources.
A process has three primary components: program counter, registers, and memory.

Stack in a Process

The primary function of the stack in a process is to store data and program control information.

System Types

In an operating system, a multiprocessing system executes user programs or tasks.

Batch System vs Time-Shared System

The main difference between a batch system and a time-shared system is that a batch system executes jobs in batches without manual intervention, whereas a time-shared system executes multiple jobs concurrently, with the CPU switching between them rapidly.

Process Memory

The heap contains memory dynamically allocated during process runtime.

Program vs Process

A program is a set of instructions, while a process is a program in execution, including the current activity, memory, and system resources.
A program becomes a process when it is loaded into memory and executed by the CPU.

Process States

The "zombie" state represents the condition in which the process has finished execution, but its parent process has not yet acknowledged its termination.

Process Control Block (PCB)

The PCB contains information about each process, including the process state, program counter, memory limits, and open files.
In the context of threads, the PCB includes a thread ID, registers, and memory limits for each thread.

Multithreading

Multiple threads provide improved system responsiveness and throughput on multicore systems.
A process can perform more than one task at a time in modern operating systems using multithreading.
In Linux, a process is represented as a task_struct data structure.
A process is waiting for some event to occur when it is in a "sleeping" or "waiting" state.

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Description

Test your understanding of process concepts, scheduling, operations, interprocess communication, and client-server communication in the context of operating systems. This quiz covers the features of processes, including creation, termination, and shared memory interprocess communication.