Memory Management - 2 | Take the Quiz

What is the term for the mapping of logical pages to physical frames in the page table?

Contiguous allocation

Internal fragmentation

Demand paging

Address translation

In which situation does the OS perform swapping of processes?

During context switches

When running low on CPU cache

On every memory access

During demand paging

What is the primary disadvantage of contiguous allocation in modern operating systems?

Internal fragmentation

External fragmentation

Page table overhead

CPU cache issues

What type of memory allocation divides a process memory image into segments corresponding to code, data, and stack?

Contiguous allocation

Paging

Segmentation

Swapping

Which part of the operating system is responsible for constructing and maintaining page tables?

CPU cache

Memory management unit

Page table manager

Operating system kernel

How does segmentation differ from paging in terms of memory management?

Segmentation uses a flat address model, while paging uses a hierarchical model.

Segmentation eliminates internal fragmentation, while paging eliminates external fragmentation.

Segmentation relies on contiguous memory allocation, while paging allows non-contiguous allocation.

Segmentation simplifies address translation, while paging adds an extra level of indirection.

What is the term for the smaller problem that arises with internal fragmentation in paging?

External fragmentation

Page table overhead

CPU cache issues

Internal fragmentation

What happens during a context switch in terms of memory management?

Swapping of processes

Updating the page table pointer

Allocation of physical frames

Clearing the CPU cache

How is demand paging related to the concept of virtual memory in modern operating systems?

Demand paging eliminates virtual memory

Virtual memory corresponds entirely to physical memory

Demand paging allows for a larger virtual address space than physical memory

What is the purpose of using paging in memory management?

Eliminate internal fragmentation

Enable demand paging

Simplify CPU cache management

Avoid external fragmentation

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