In the context of modern computer components, the CPU (Central Processing Unit) is responsible for:

Executing program instructions and performing calculations.

Storing data for long-term use.

Displaying graphical user interfaces.

In computer operating systems, how are processes understood?

A program is loaded into memory and the CPU is executing

A program loads into primary memory or secondary memory

Which of the following best describes the relationship between threads within a single process?

Threads share the same memory space but have their own registers.

Threads are completely independent and do not share any resources.

Threads are separate and isolated from one another.

Threads are tightly integrated, and they all have their own separate memory space.

Which of the following actions does the operating system take to execute a new process?

Create immediate PCB blocks for process.

Provide immediate CPU for process.

Delivery the resources must be process.

Provide immediate Register for process.

In a real-time scheduling system, which type of process is given the highest priority?

Processes with the earliest deadlines

Processes with the highest computation time

What is the role of the Memory Management Unit (MMU) in a computer system?

The MMU translates virtual addresses into physical addresses

It controls the allocation of memory to different processes.

It manages the paging and swapping of memory pages.

It is a data structure used in computer operating systems for virtual memory management.

How does memory abstraction through address spaces benefit a computer system?

It isolates processes from one another, preventing unauthorized access.

It allows each process to access the entire physical memory directly.

It eliminates the need for virtual memory.

It reduces CPU processing speed.

Suppose there are 4 memory blocks, B1, B2, B3, and B4, with sizes of 600K, 500K, 200K, and 300K respectively. And we have 4 processes, P1, P2, P3, and P4, with corresponding request sizes of 250K, 420K, 150K, and 450K. When applying the best-fit algorithm, which memory blocks are allocated to the processes?

P1-B1, P2-B2, P3-B4, (P4: none allocated)

P1-B1, P2-B2, P3-B3, (P4: none allocated)

In the context of memory management, which statement accurately describes a page fault in memory paging?

An interrupt that occurs when accessing a page not currently in main memory.

A situation where a page is removed from main memory to secondary storage.

An error occurring when accessing data that is not present in the page table.

A condition when the page table is corrupted due to excessive fragmentation.

What is the DISADVANTAGE of segmentation in memory management?

It can have external fragmentation.

The average segment size is larger than the actual page size.

It is easier to relocate segments than the entire address space.

The segment table is smaller as compared to the page table.

In Linux, what is the primary purpose of the /etc directory?

To house system configuration files and scripts.

To store user home directories.

What is the purpose of Direct Memory Access (DMA) in I/O hardware?

To enable devices to transfer data to and from memory without CPU intervention.

To allocate memory for device drivers.

To provide user interfaces for I/O devices.

What are the two types of I/O devices roughly?

Block devices and character devices

Block devices and sequence devices

Character devices and I/O devices

Character devices and digital devices

What is the role of the file system in disk management?

To organize and track files and data on the disk.

To allocate memory for disk operations.

To manage the disk's hardware components.

In device-independent I/O software, what happens to characters that arrive while the page with the user buffer is being brought in from the disk?

The buffer is full, there is no place to put them

The buffer is ready, there is more places to put them

The buffer is clear, there is more places to put them.

What are the weaknesses of RAID 0?

There is no data recovery mechanism

Requires the highest number of disks in RAID modes

The unit of data transmitted is at the BIT level

Does not improve read and write speeds.

If a process has begun to burn a Blu-ray, suddenly taking the Blu-ray recorder away from it and giving it to another process will result in a garbled Blu-ray. What does the scenario above indicate?

It's a Non-preemptable resource

It's an Un-preemptable resource

What is a nonpreemtable resource?

The one that cannot be taken away from its current owner without potentially causing failure.

The one that can be taken away from its current owner with potentially causing failure.

The one that cannot be taken away from its current owner with potentially causing failure.

The one that can be taken away from its current owner without potentially causing failure.

What does "no preemption" imply in the context of deadlocks?

Resources cannot be preempted once allocated.

Resources can be preempted from one process to another.

Processes can be terminated to free up resources.

Resources are allocated in a circular manner.

In the context of resource allocation or resource management models, what does it mean for an arc to be directed from a process to a resource?

That the process is currently waiting for that resource.

That the process is currently ready waiting for that resource.

That the process is currently blocked waiting for that resource.

That the process is currently running for that resource.

In the Banker's algorithm, what is the purpose of the "maximum demand" matrix?

To record the maximum resources each process may need during its execution.

To specify the number of instances of each resource currently held by each process.

To list the resources currently available in the system.

To identify deadlocked processes.

Paravirtualization takes a different approach by modifying the source code of the guest operating system rather than performing sensitive instructions. In this context, which of the following is true?

the paravirtualized guest executes hyper calls

the paravirtualized guest executes system calls

the paravirtualized guest executes virtual calls

the paravirtualized guest executes Hyper commands

OSG202_C1_SU24_FE_953201

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MULTIPLE CHOICE QUESTION

15 mins • 1 pt

What is NOT an operating system mode?

System mode

User mode

Kernel mode

Supervisor mode

MULTIPLE CHOICE QUESTION

15 mins • 1 pt

From an extended machine perspective, what functions does the system provide to help users use it more conveniently than the actual machine?

Provide users with abstract information.

Provide users with progress information.

Provides users with memory information.

Provides users with information about the drive.

MULTIPLE CHOICE QUESTION

15 mins • 1 pt

Which early operating system was designed for the UNIVAC I computer and is often considered one of the first operating systems?

MS-DOS

UNIX

COBOL

EDVAC

MULTIPLE CHOICE QUESTION

15 mins • 1 pt

The was invented to attach all the slow I/O devices, such as the keyboard and mouse, to the computer.

ISA

PCI

DMI

USB

MULTIPLE CHOICE QUESTION

15 mins • 1 pt

This register contains the condition code bits, which are set by comparison instructions, the CPU priority, the mode (user or kernel), and various other control bits is called the:

All of the above

IR (Instruction Register)

PC (Program Counter)

PSW (Program Status Word)

MULTIPLE CHOICE QUESTION

15 mins • 1 pt

Which operating system runs on systems with any CPU (multi-processor, multi-core, multi-chip)?

Embedded OS

Multiprocessor OS

PC OS

Server OS

MULTIPLE CHOICE QUESTION

15 mins • 1 pt

Which OS has three kinds of services: batch, transaction processing, timesharing?

Server OS

Multiprocessor OS

PC OS

Mainframe OS

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OSG202_C1_SU24_FE_953201

What is NOT an operating system mode?

From an extended machine perspective, what functions does the system provide to help users use it more conveniently than the actual machine?

Which early operating system was designed for the UNIVAC I computer and is often considered one of the first operating systems?

The was invented to attach all the slow I/O devices, such as the keyboard and mouse, to the computer.

This register contains the condition code bits, which are set by comparison instructions, the CPU priority, the mode (user or kernel), and various other control bits is called the:

Which operating system runs on systems with any CPU (multi-processor, multi-core, multi-chip)?

Which OS has three kinds of services: batch, transaction processing, timesharing?

In the context of modern computer components, the CPU (Central Processing Unit) is responsible for:

The basic concepts on which all operating systems are built are processes, memory management, I/O management, the file system, and security. What is the interface that is provided to access the services of the operating system?

Which of the following process state transitions(from-to) is illegal?

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