Paging and Segmentation in OS

What is paging in operating systems?

• Dividing memory into fixed-size blocks

• Dividing memory into variable-size segments

• Swapping data to hard disk

• Allocating memory using linked lists

In paging, what are the blocks of physical memory called?

• Pages

• Segments

• Frames

• Slots

Which of the following is NOT an advantage of paging?

• Eliminates external fragmentation

• Allows efficient memory use

• Simplifies memory allocation

• Avoids internal fragmentation

What does the page table store?

• Logical addresses of processes

• Mapping between pages and frames

• List of allocated segments

• CPU scheduling data

What happens during a page fault?

• Page is swapped in from disk

• Process is terminated

• CPU halts

• Page is removed from RAM

Which memory management technique uses equal-sized memory blocks?

• Segmentation

• Contiguous allocation

• Paging

• Virtual memory

What is the primary disadvantage of paging?

• Inflexibility in allocation

• External fragmentation

• Page table overhead

• Need for manual allocation

In paging, what part of the logical address identifies the page number?

• Offset

• Base

• First few bits

• Page size

Which component translates logical to physical address in paging?

• CPU

• Frame manager

• Page table

• MMU

Which of the following best describes internal fragmentation?

• Wasted space between pages

• Unused memory within a page

• Inaccessible memory

• Free memory not allocated