Operating System: System Programs and Utilities Quiz

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Questions and Answers

What type of system call is 'fork()'?

Device management

Information maintenance

File management

Process control (correct)

Which system call is used for opening a file?

ioctl()

open() (correct)

exit()

wait()

In the context of system calls, what does 'ioctl()' mainly deal with?

Device management (correct)

Process attributes

Time or date

File attributes

Which system call is related to requesting a device?

ioctl() Signup and view all the answers

What type of system call is 'write()' generally associated with?

File management Signup and view all the answers

'exit()' is associated with which type of system call?

Process control Signup and view all the answers

What type of system programs provide a mechanism for creating virtual connections among processes, users, and different computer systems?

Communication programs Signup and view all the answers

Which type of system program is responsible for text editors that allow users to create and modify the content of files?

File modification programs Signup and view all the answers

What category of system programs includes compilers, interpreters, and assemblers?

Programming-language support programs Signup and view all the answers

Which type of system program provides a simple user interface to system calls but is not directly a system call itself?

File manipulation programs Signup and view all the answers

Which type of system program offers features like creating, deleting, copying, renaming, printing, dumping, and listing files?

Status information programs Signup and view all the answers

What are the system programs that create an environment for program development and execution most users interact with?

System utility programs Signup and view all the answers

What is the main goal of the OS feature known as SPOOL?

To keep I/O and CPU busy all the time. Signup and view all the answers

In line with the text, which OS feature is crucial for multiprogramming to work effectively?

Job scheduling Signup and view all the answers

What is a key aspect of the Time-Sharing/Multitasking Systems featured in the text?

Interactive use of computer system Signup and view all the answers

Which data structure allows the OS to select jobs that run next in order to increase CPU utilization?

Job pool Signup and view all the answers

What is the main purpose of having a faster disk act as a huge buffer in the SPOOL mechanism?

Maintain I/O and CPU busy all the time Signup and view all the answers

Which OS feature is responsible for choosing one job to run among those in memory ready for execution?

CPU scheduling Signup and view all the answers

Study Notes

System Calls

fork(): A system call for creating a new process by duplicating the current process.
File Opening: The open() system call is used for opening files.
ioctl(): Primarily deals with device-specific input/output operations and control.
Device Request: The system call ioctl() is also related to requesting a device.
write(): Generally associated with system calls that manage output operations to files or devices.
exit(): Associated with terminating a process and performing cleanup.

System Programs

Virtual Connections: System programs provide mechanisms for creating virtual connections among processes and users, facilitating communication.
Text Editors: Responsible for allowing users to create and modify the content of files.
Compilers/Interpreters: Fall under the category of system programs that translate high-level programming code into machine code.
User Interface to System Calls: System programs that provide an interface to system calls, simplifying their use without being direct system calls themselves.
File Management Features: Programs that offer functionalities like creating, deleting, copying, renaming, printing, dumping, and listing files.
Development and Execution Environment: System programs that help create an environment most users interact with for developing and executing programs.

Operating System Features

SPOOL (Simultaneous Peripheral Operations Online): Aims to manage data for input and output by using faster disks as buffers to optimize processing.
Multiprogramming: The essential OS feature crucial for enabling multiple processes to run concurrently, enhancing resource utilization.
Time-Sharing/Multitasking Systems: Characterized by the ability to switch between multiple tasks, allowing users to execute various applications simultaneously.
Job Selection Data Structure: Utilizes a scheduling algorithm or queue to determine which job runs next, thereby increasing CPU utilization.
Job Execution Selection: The OS feature responsible for selecting one job to run among those in memory that are ready for execution, ensuring efficient CPU allocation.

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Description

Test your knowledge on system programs and utilities in operating systems. Topics include resource access control, creating and deleting communication connections, sending and receiving messages, and more.