Fundamentals of Operating System Services

What is an operating system?

• An operating system is a type of computer virus.

• An operating system is a type of hardware component.

• An operating system is software that manages computer hardware and software resources.

• An operating system is a programming language.

List three main functions of an operating system.

• Network security enforcement

• 1. Resource management 2. User interface 3. Application execution

• Data encryption and decryption

• File storage management

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

• A process is responsible for managing user accounts.

• The role of a process in an operating system is to execute programs and manage system resources.

• A process handles network security protocols.

• A process is used solely for data storage.

Define the term 'multitasking' in the context of operating systems.

• Multitasking is the capability of an operating system to manage and execute multiple processes concurrently.

• Multitasking refers to the ability of a computer to run a single process at a time.

• Multitasking is when an operating system shuts down unused applications to save resources.

• Multitasking is the process of upgrading an operating system to a newer version.

What is the purpose of memory management in an operating system?

• The purpose of memory management in an operating system is to efficiently allocate and manage memory resources for processes.

• To manage network connections efficiently.

• To store user data permanently.

• To increase the speed of the CPU.

Explain the concept of a file system.

• A file system is a type of software application.

• A file system is a hardware component of a computer.

• A file system is a programming language used for data manipulation.

• A file system is a method for organizing and managing files on a storage device.

What are system calls and why are they important?

• System calls are essential for enabling user applications to interact with the operating system and access hardware resources securely.

• System calls are unnecessary for modern operating systems.

• System calls are a type of software bug that slows down applications.

• System calls are only used for network communication.

Describe the difference between user mode and kernel mode.

• Kernel mode is used for running user applications, while user mode is for system processes.

• User mode has limited privileges for applications, while kernel mode has full access to system resources.

• User mode and kernel mode are the same, with no differences in privileges.

• User mode allows full access to system resources, while kernel mode has limited privileges.

What is a device driver and its function?

• A device driver is a network protocol for data transmission.

• A device driver is an application that manages user accounts.

• A device driver is software that enables communication between the operating system and hardware devices.

• A device driver is a type of hardware that processes data.

How does an operating system manage hardware resources?

• An operating system is solely responsible for user interface design.

• An operating system manages hardware resources by allocating CPU time, managing memory, controlling I/O devices, and handling storage.

• An operating system only manages software applications.

• An operating system does not interact with hardware at all.