Operating Systems Chapter 1 Quiz

Key factors influencing cache performance are size and replacement policy.

A privileged operating mode allowing direct hardware access.

Software whose source code is freely available for modification and distribution.

Windows is not an open source operating system.

A system providing a file-system interface for file manipulation.

A custom build of the Linux operating system, tailored for specific needs.

Software frameworks that offer additional services to application developers.

Privileged instructions can be attempted from user mode, which is false.

An operating system creates an environment for programs to work, similar to how a government provides a structure for society.

Mainframe operating systems are designed primarily to maximize resource utilization, accommodating multiple users and tasks.

The most common secondary storage device used in computing is the magnetic disk, used for storing data long-term.

An SMP-type system allows each processor to perform all tasks within the operating system, sharing workloads efficiently.

A timer can prevent a user program from never returning control to the operating system by interrupting it after a specific time.

Embedded computers typically run on real-time operating systems to handle their specific tasks effectively and predictably.

Bluetooth and 802.11 devices communicate over several feet, creating a small-area network for device interaction.

A clustered system gathers multiple CPUs to work together on computational tasks, enhancing performance and reliability.

Memory available for operations like cache and RAM.

A method using disk space to extend available memory for programs.

An abstraction that simplifies the view of a computer’s memory.

A mode when a computer executes on behalf of a user application.

Ensures updated data is consistent across multiple CPU caches.

Memory that loses data when power is lost, like main memory.

The two main modes in a system are user mode and kernel mode.

An operating system manages CPU time, memory space, and other resources.

A table of pointers for handling specific interrupts efficiently.

Initial program run by a computer to initialize the system.

Responsible for managing a specific type of device and its data movement.

A software that allows the OS to communicate with a device controller.

Temporary storage used by device controllers for data movement.

A server that processes client requests for actions, like data retrieval.

A server that provides a file-system interface to clients for file operations.

The main components are hardware, OS, application programs, and users.

Programs associated with the operating system, not part of the kernel.

Programs designed to perform specific user tasks, independent of the OS.

A mechanism that allows I/O devices to transfer data without CPU involvement.

Using multiple processors on a single chip for better communication and efficiency.

UMA has equal access times; NUMA has variable access times based on location.

Protection controls access to system resources; security defends against attacks.

Mobile computing occurs on portable devices; desktop computing is on fixed systems.

Delivering computing resources via a network; can be public, private, or hybrid.

False: Kernel does not include all system and application programs.

True: Flash memory is slower than DRAM but retains content without power.

False: System calls are typically triggered by software, not hardware.

False: UNIX allows privilege escalation for certain activities.

True: Solid state disks are generally faster than magnetic disks.