There is no external fragmentation in paging but internal fragmentation exists. ... Paging divides virtual memory or all processes into equal-sized pages and physical memory into fixed size frames. So you are typically fixing equal size blocks called pages into equal block shaped spaces called frames!

Does paging suffer from fragmentation explain?

Segmentation may cause external fragmentation, when all blocks of free memory are too small to accommodate a segment but the sum of the free spaces is larger than the segment size. Hence, paging suffers from internal fragmentation and segmentation suffers from external fragmentation problem.

How does internal fragmentation occur in paging?

Internal Fragmentation:

Internal fragmentation happens when the memory is split into mounted sized blocks. Whenever a method request for the memory, the mounted sized block is allotted to the method.