In computer operating systems, how are processes understood?

A program is loaded into memory and the CPIJ is executing

A program loads into primary memory or secondary memory

In the Round-robin scheduling, what happens to a process when it runs out of the of time allocated by the system?

The process switches from running to a ready state.

The process switches from running to a blocked state-

The process switches from running to a suspended-ready state.

The process switches from running to a suspended state-

When using the Critical Regions solution, which of the following conditions is NOT necessary?

Processes entering critical regions must set their speed or number of CPUs-

Two processes are not in critical regions at the same time.

A process outside the staging area must not prevent other processes from entering critical regions.

Processes do not have to wait indefinitely to enter critical regions.

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 (MMIJ) 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.

What is the main advantage of using the Clock Algorithm over the Second Chance Algorithm in terms of page replacement efficiency?

The Clock algorithm eliminates the need to move pages around, reducing overhead-

The Clock algorithm increases the complexity of implementation.

The Clock algorithm guarantees fewer page faults compared to Second Chance algorithm.

The Clock algorithm uses more memory to maintain the circular structure.

What is the primary purpose of using paging in memory management?choose correct answers

To eliminate fragmentation and improve memory utilization.

To organize memory into fixed-size blocks for efficient storage.

To reduce the access time for data in memory-

To allow multiple processes to share the same physical memory-

In a file's metadata, what information does the file size typically represent?

The amount of space the file occupies on the storage medium-

The physical size of the storage medium.

The number of characters in the file.

The number of pages in the file.

What is fragmentation in the context of file-system implementation?

The splitting of files or free space into smaller, non-contiguous blocks.

A technique for managing directory structures-

The allocation of memory for file storage.

The arrangement of files on storage devices.

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 intenæntion.

To allocate memory for device drivers.

To provide user interfaces for I/O devices

What does the term "blocking" refer to in the context of I/O software?

The process of stopping a process until an 1/0 operation is completed.

A technique for managing device drivers-

A mechanism for ensuring device synchronization-

A method of allocating memory for 1/0 operations.

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.

What is a preemtable resource?

The one that can be taken away from the process owning it with no ill effects

The one that can be taken away from the process owning it with ill effects

The one that can not be taken away from the process owning it with no ill effects

The one that can not be taken away from the process owning it with ill effects

Which of the following statements regarding deadlock is correct?

A combination of semaphore and mutex ensures safe resource allocation.

Allocation is a logical process while acquisition is its physical implementation-

Banker's Algorithm is used to guarantee absolute mutual exclusion during resource acquisition.

Kernel is responsible for exclusive resource acquisition by a process while IPC takes care of safe resource allocation among multiple processes.

In deadclock, what is mutual exclusion condition?

Each resource is either currently assigned to exactly one process or is available.

Processes currently holding resources that were granted earlier can request new resources.

Resources previously granted cannot be forcibly taken away from a process- They must be explicitly released by the process holding them.

There must be a circular list of two or more processes, each of which is waiting for a resource help by the next member of the chain.

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-

What does a resource allocation graph represent in the context of deadlock detection?

A graph that depicts the processes and resources and their relationships.

A graph that shows the number of resources allocated to each process.

A chart showing the execution order of processes.

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 modifiying the source code of the guest operating system instead 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 - SP2025 - FE - RETAKE

Authored by Thế Đoàn

Computers

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MULTIPLE CHOICE QUESTION

30 sec • 1 pt

When a virtual memory system manages memory in fixed length units, which of the following terms correctly represents its unit?

Frame

Page

Block

Segment

MULTIPLE CHOICE QUESTION

30 sec • 1 pt

What is NOT an operating system mode?

System mode

User mode

Kernel mode

Supervisor mode

MULTIPLE CHOICE QUESTION

30 sec • 1 pt

In I/0 Devices, the softh.rare that talks to a controller, giving it commands and accepting responses, is called ____

device driver

DMA

device interface

interrupt

MULTIPLE CHOICE QUESTION

30 sec • 1 pt

What happens to the program counter after an instruction is fetched?

It is reset to zero

It is updated to point to the next instruction

It is used to store the result of the instruction

It is used to store the total length of the program being executed

MULTIPLE CHOICE QUESTION

30 sec • 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

30 sec • 1 pt

What is the output of the following command: echo $((5 / 2 * 2)) ?

1.0

5.0

4.0

2.0

MULTIPLE CHOICE QUESTION

30 sec • 1 pt

In Unix, which the POSIX system call creates the new process?

fork

create

new

CreateProcess

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OSG202 - SP2025 - FE - RETAKE

When a virtual memory system manages memory in fixed length units, which of the following terms correctly represents its unit?

What is NOT an operating system mode?

In I/0 Devices, the softh.rare that talks to a controller, giving it commands and accepting responses, is called ____

What happens to the program counter after an instruction is fetched?

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

What is the output of the following command: echo $((5 / 2 * 2)) ?

In Unix, which the POSIX system call creates the new process?

In the FIFO page replacement algorithm, what data structure is commonly used to implement the page replacement queue?

Which of the following is an Operating System component?

In computer operating systems, how are processes understood?

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