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CSC301 Final Exam Questions and Answers 100% Pass Why is memory management important in an operating system? Memory management ensures efficient allocation of memory to processes and helps prevent crashes and memory leaks. What does a process scheduler do? A process scheduler manages th...

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  • November 11, 2024
  • 17
  • 2024/2025
  • Exam (elaborations)
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CSC301 Final Exam Questions and
Answers 100% Pass
Why is memory management important in an operating system?


✔✔Memory management ensures efficient allocation of memory to processes and helps prevent

crashes and memory leaks.




What does a process scheduler do?


✔✔A process scheduler manages the execution order of processes, optimizing system

performance and resource use.




How does virtual memory enhance system performance?


✔✔Virtual memory allows a system to use disk space as additional memory, enabling larger

programs to run smoothly.




What is a system call?


✔✔A system call is a way for programs to request services from the operating system, such as

file access or device management.




1

,What is a deadlock in an operating system?


✔✔A deadlock occurs when two or more processes are waiting on each other to release

resources, causing them to be stuck indefinitely.




How does an interrupt work in an operating system?


✔✔An interrupt signals the processor to stop its current activities and execute a specific task,

often to handle I/O operations.




What is the purpose of a file system?


✔✔A file system organizes and manages files on a storage device, enabling easy access and

modification.




Why is CPU scheduling necessary?


✔✔CPU scheduling optimizes the use of the processor by determining which processes should

run at any given time.




What is the difference between a process and a thread?


✔✔A process is an independent program with its own memory space, while a thread is a

lightweight sub-unit within a process that shares memory.

2

, What does swapping mean in an operating system?


✔✔Swapping is the process of moving data between main memory and disk to free up space for

active processes.




What is the role of a device driver?


✔✔A device driver acts as an intermediary between the operating system and hardware devices,

allowing communication and control.




How does a multi-user operating system function?


✔✔A multi-user operating system allows multiple users to access and use system resources

simultaneously.




What is the difference between multitasking and multiprocessing?


✔✔Multitasking allows multiple processes to run concurrently on a single CPU, while

multiprocessing uses multiple CPUs to run processes simultaneously.




Why is paging used in memory management?




3

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