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Questions and Answers
Match the memory management technique with its description:
Match the memory management technique with its description:
Segmentation = Logical address space of a process can be noncontiguous Paging = Divide physical memory into fixed-sized blocks called frames
Match the hardware component with its function:
Match the hardware component with its function:
Segment-table base register (STBR) = Points to the segment table’s location in memory Page table = Translate logical to physical addresses
Match the term with its meaning:
Match the term with its meaning:
External fragmentation = Difficulty managing variable-length segments in secondary storage Internal fragmentation = Wasted space within a page or a segment
Match the address translation component with its purpose:
Match the address translation component with its purpose:
Match the example with the correct memory management concept:
Match the example with the correct memory management concept:
Match the term with its usage in memory management:
Match the term with its usage in memory management:
Match the memory management scheme with its description:
Match the memory management scheme with its description:
Match the segment with its description:
Match the segment with its description:
Match the addressing scheme requirement with its components:
Match the addressing scheme requirement with its components:
Match the advantage with the memory management scheme it applies to:
Match the advantage with the memory management scheme it applies to:
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Study Notes
Memory Management Techniques
- Match memory management techniques with their descriptions: • Paging: divides physical memory into fixed-size blocks called pages • Segmentation: divides a program into logical units called segments • Swapping: transfers pages or segments between main memory and secondary storage • Virtual Memory: uses both hardware and software to enable a computer to use more memory than physically installed
Hardware Components
- Match hardware components with their functions: • MMU (Memory Management Unit): translates logical addresses to physical addresses • Cache Memory: acts as a fast buffer between main memory and CPU • Registers: stores data temporarily while it is being processed
Address Translation
- Match address translation components with their purposes: • Page Table: stores the mapping between virtual and physical addresses • Page Frame Number (PFN): the physical address of a page • Page Offset: the displacement of a word within a page
Memory Management Concepts
- Match examples with correct memory management concepts: • A process using more memory than physically available: Virtual Memory • Dividing a program into logical units: Segmentation • Transferring pages between main memory and secondary storage: Paging
Memory Management Schemes
- Match memory management schemes with their descriptions: • Contiguous Allocation: assigns contiguous blocks of memory to a process • Non-Contiguous Allocation: assigns non-contiguous blocks of memory to a process • Dynamic Memory Allocation: allocates memory at runtime
Addressing Schemes
- Match addressing scheme requirements with their components: • Absolute Addressing: requires the physical address • Relative Addressing: requires the base address and relative offset • Indirect Addressing: requires the address of a memory location that contains the required address
Memory Management Advantages
- Match advantages with the memory management scheme they apply to: • Efficient use of memory: Virtual Memory • Fast access to memory: Cache Memory • Protection from memory conflicts: Paging
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