17 Questions
What is the primary purpose of resource allocation in an operating system?
To maximize the utilization of system resources by multiple users or jobs
What is the primary purpose of the accounting function in an operating system?
To track resource usage for billing or usage statistics
Which of the following is NOT a common type of system call in an operating system?
Memory management
What is the purpose of the separation of policy and mechanism in operating system design?
To allow the operating system to enforce different policies for different users or groups
What is the purpose of the Simultaneous Peripheral Operation OnLine (SPOOL) feature in an operating system?
To provide a buffer for input/output operations, allowing the CPU to continue executing other tasks
What is the primary role of the operating system in the development of modern software applications?
To provide a stable and consistent hardware abstraction layer for applications to run on
What is the purpose of job scheduling in an operating system?
To determine the order in which jobs are executed by the CPU
What is the primary benefit of multiprogramming in an operating system?
It improves system performance by utilizing idle CPU time
What is the main purpose of the SPOOL (Simultaneous Peripheral Operation OnLine) technique?
To enable multiple users to share peripheral devices
What is the significance of the separation between policy and mechanism in operating system design?
It facilitates the implementation of different resource allocation strategies
Which of the following is a common approach in the development of modern operating systems?
Layered design, with well-defined interfaces between components
What is the primary purpose of a job scheduler in an operating system?
To allocate CPU time to individual processes
What is the main advantage of multiprogramming in an operating system?
It improves system throughput by keeping the CPU busy at all times
What is the purpose of the SPOOL (Simultaneous Peripheral Operation OnLine) feature in an operating system?
To enable efficient use of slow I/O devices by decoupling them from the CPU
What is the significance of the separation between policy and mechanism in operating system design?
It facilitates the development of portable and modular operating systems
Which of the following is a common approach used in the development of modern operating systems?
Object-oriented design, with inheritance and polymorphism
What is the primary responsibility of the memory management component in an operating system?
Allocating and deallocating memory for processes and managing virtual memory
Study Notes
- OS services include resource allocation, accounting, protection and security, and system calls.
- System calls serve as a user interface to OS services, available in assembly-language instructions or high-level languages like C.
- Types of system calls include process control (e.g., fork(), exit()), file management (e.g., open(), read()), and device management (e.g., ioctl(), read()).
- The main objectives of an operating system are to provide an environment for program execution and development, manage resources, and control access.
- OS components include process management, main-memory management, secondary-storage management, file management, I/O system management, protection system, networking, and command-interpreter system.
Test your knowledge on the purposes and components of an operating system including process management, memory management, file management, and more.
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