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19CS405-Operating System

19CS405-Operating System

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Which one is not a PAGE REPLACEMENT ALGORITHM?

LRU (Least Recently Used)

Optimal Page Replacement

BFS (Breadth-First Search)

FIFO (First-In-First-Out)

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How does the utilization of multiple threads impact a process's ability to perform tasks in computing?

It simplifies the process to manage a single task efficiently

It restricts the process to perform only one task at a time

It enables the process to execute multiple tasks concurrently

It minimizes the need for task allocation within the process

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What does the term "virtual address space" directly refer to in the context of a process?

The speed of CPU registers

The physical storage size of a process

The network connectivity of a process

The logical (or virtual) view of how a process is stored in memory

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What defines the First-Come, First-Served (FCFS) scheduling algorithm in an operating system?

Processes are executed based on their execution time

Processes with the highest priority are scheduled first

Processes are scheduled based on their arrival time

The process that requests the CPU first is allocated the CPU first

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In a global replacement policy, where a process can select a replacement frame from the set of all frames, what does "global" refer to?

Replacement within the same address space

Replacement within the same process

Replacement from the set of all frames

Replacement within the same page

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What determines the size of a page in paging systems?

Always fixed at 512 bytes per page

Varied based on the CPU clock speed

A power of 2, ranging from 512 bytes to 1 GB, depending on computer architecture

Always set to 1 GB per page for efficiency

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What distinguishes soft real-time systems from other types of systems?

They prioritize critical real-time processes

They exclusively allocate resources to real-time tasks

They provide no guarantee as to when critical real-time process will be scheduled

They guarantee precise scheduling of critical processes

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What defines the concept of internal fragmentation in memory management?

wasted space internal to a partition due to the fact that the block of data loaded is smaller than the partition.

Efficient allocation of memory resources

Optimal utilization of memory partitions

Space wasted due to unavailable partitions

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What does the multiuser capability of Linux allow?

Grants access to only a single user per session

Limits the number of users who can log in

Restricts access to one user at a time

Linux allows many users to access the system at the same time

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What is the characteristic of "pure demand paging" in memory management?

Pages are brought into memory only when they are required

All pages are loaded simultaneously

Pages are loaded into memory in advance

Pages are loaded based on a predetermined schedule

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