True or False. Write True or False. Do not write T or F Dynamic partitioning lea

Question

True or False. Write True or False. Do not write T or F

Dynamic partitioning leads to internal fragmentation.

Paging is visible to the user.

Segmentation and paging can be combined

Paging requires more hardware support than segmentation

Page size is normally twice as big as the frame size.

Segmentation leads to external fragmentation.

Consider a memory system with virtual memory 2G, physical memory 2G and page size of 2K. In this system, 31 bits are used to represent the offset within a page.

Page size of 6K is desired by some systems.

Using 2 level paging generally reduces the overall page table size.

In a system that uses inverted page table, there is only one inverted page table.

In a paging system, for every memory access issued by the process, the OS explicitly checks that the process is allowed to access the corresponding memory.

In UNIX, if a process writes to a page that has `copy-on-write' set to 1 then it causes the process to be terminated.

Explanation / Answer

False. Dynamic partitioning leads to external fragmentation. Compaction is used to restore extra space

False. It's a memory management task which is not visible to user.

True. Both does the same thing, primary objective is same.

False. There is no need of more hardware support, paging is continous block of memory while segmentation is not continuous

True

True. Segmentation leads to dynamic allocation of memory because of which small fragments are left out which cannot be used.
Thus leading to external fragmentation.

False

False. It is not compulsory.

False. It is internally divided into pages.

True.

False. Process already issed the access to the memory.

False.

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