Memory Management Strategies Quiz
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Questions and Answers

What is the function of main memory in a computer system?

  • It is the storage for long-term data retention
  • It is the internal memory to the computer where programs are loaded for execution (correct)
  • It is used for caching internet data
  • It is responsible for managing peripheral devices

    • What distinguishes static loading from dynamic loading?

  • Dynamic loading requires more memory space than static loading
  • Static loading loads the complete program into memory, while dynamic loading loads only the required part when called (correct)
  • Static loading is faster than dynamic loading
  • Dynamic loading is used for system programs, while static loading is used for application programs

    • What happens as processes are loaded and removed from memory?

  • Memory blocks get consolidated to reduce fragmentation
  • Free memory space gets fragmented into smaller pieces (correct)
  • Memory space increases to accommodate new processes
  • Processes become more efficient in memory usage

    • What is the purpose of virtual memory?

    <p>To provide additional memory when physical memory is running low</p> Signup and view all the answers

    Which statement best describes frame allocation algorithm?

    <p>It determines how main memory is divided and assigned to running processes</p> Signup and view all the answers

    Study Notes

    • Main memory is the internal physical memory in a computer system, distinguishing it from external mass storage devices like disk drives.
    • Programs are loaded into the main memory for execution. They can be statically loaded in their entirety or dynamically loaded in parts when needed.
    • Fragmentation occurs when free memory space is broken into small pieces due to the loading and removal of processes. These small pieces may prevent processes from being allocated to memory, resulting in unused memory blocks.
    • External fragmentation is when the free memory is broken into small pieces, spread out over the memory, making it unusable for larger processes.
    • Internal fragmentation occurs when a process is not able to utilize all the allocated memory due to the memory management system's inefficiencies.
    • Two common memory allocation strategies for managing the memory: page replacement algorithm and frame allocation algorithm.
    • Page replacement algorithm determines which pages to replace when the memory is full and a new page needs to be loaded.
    • Frame allocation algorithm is used to manage the memory by dividing the main memory into fixed-sized frames, where each frame holds an entire process.
    • The goal of these algorithms is to minimize fragmentation, improve memory usage, and ensure efficient use of the main memory.

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    Description

    Test your knowledge of memory management with this quiz covering basic main memory allocation strategies, virtual memory, page replacement algorithms, and frame allocation algorithms. Learn about the functions of main memory, static and dynamic loading, internal and external fragmentation, and different allocation and replacement algorithms.

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