26 Questions
What is the main function of an operating system?
Controlling the execution of application programs and providing an interface between applications and hardware
In the layered model of operating systems, what is the main function of the Kernel?
Controls the execution of application programs
What term is used to describe the portion of the operating system that is in main memory?
Kernel
According to the layered model, where does the operating system reside in relation to the hardware and applications?
Between hardware and applications
Which scheduling algorithm aims to execute the shortest job first?
Shortest Job First (SJF)
What aspect of an operating system does Process Control Block (PCB) relate to?
Process scheduling and management
What are the functions of an operating system?
Process Management, Memory Management, and File Management
What does a Process Control Block (PCB) contain?
State, Priority & Accounting information, and Memory pointers
What is the purpose of the fork system call in Unix?
Creates a new process and replaces its memory space with a new program
What is the significance of interprocess communication (IPC) in a system?
Facilitates information sharing and computation speedup
What is a multi-threaded process?
An executing program with one or more threads running within its context
What are the main elements contained in a Process Control Block (PCB)?
State, Identifier, and Memory pointers
Why do cooperating processes need interprocess communication (IPC)?
To share data and achieve computation speedup
What is the purpose of the exec system call after a fork in Unix?
Replaces the process’ memory space with a new program
What are the reasons for cooperating processes to use interprocess communication (IPC)?
Information sharing, Computation speedup, and Convenience
What does a multi-threaded process consist of?
One or more threads running in the context of an executing program
What is the main function of an operating system?
Controlling the execution of application programs and providing an interface between applications and hardware
Which term is used to describe the portion of the operating system that is in main memory?
Kernel
What is a multi-threaded process?
A process that consists of multiple threads of execution within a single process
What does a Process Control Block (PCB) contain?
Information about each process in the system
According to the layered model, where does the operating system reside in relation to the hardware and applications?
Above hardware and below applications
Which of the following is the main function of a Process Control Block (PCB) in an operating system?
Allowing support for multiple processes
What is the significance of interprocess communication (IPC) in the context of cooperating processes within an operating system?
Enabling processes to share information and affect each other
In the context of multi-threaded processes, what is the purpose of a thread in an operating system?
Serving as the basic unit to which processor time is allocated
What does the fork system call followed by the exec system call achieve in Unix?
Replaces the memory space of a process with a new program
What is the main reason for a Process Control Block (PCB) to contain memory pointers in an operating system?
To track the location of different memory segments in RAM
Test your knowledge of process management, process control block, process scheduling, threads, and memory management in operating systems. Learn about managing shared resources in a computing system.
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