Memory Management Basics
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Questions and Answers

What is the main purpose of base and limit registers in memory management?

  • Managing the input queue for programs on disk
  • Defining the logical address space and checking every memory access to ensure it is within the defined range (correct)
  • Providing separate memory space for each process
  • Directly accessing main memory and registers

    • What happens if a user program attempts to access OS memory or other users’ memory?

  • The program is brought into memory and placed within a process for it to be run
  • A trap to the OS, treating the attempt as a fatal error (correct)
  • The cache sits between main memory and registers
  • The CPU fetches instructions from memory according to the value of the program counter

    • What provides protection for the OS from access by user processes?

  • Main memory and registers directly accessible by the CPU
  • Separate memory space for each process
  • Address protection provided by hardware (correct)
  • Cache sitting between main memory and registers

    • What storage can the CPU access directly?

    <p>Main memory and registers</p> Signup and view all the answers

    What sits between main memory and registers?

    <p>Cache</p> Signup and view all the answers

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