Explain internal vs external fragmentation and how paging eliminates external fragmentation.

• A. Internal fragmentation is waste within fixed blocks; external fragmentation is wasted space between blocks; paging eliminates external fragmentation by fixed-size frames.
• B. Internal fragmentation is eliminated by paging; external fragmentation is always created by paging.
• C. Paging increases external fragmentation.
• D. External fragmentation occurs inside fixed-size frames.

Answer: (A)