What does the Swap Index operation accomplish?

• A. Deactivate the index
• B. Swap the index with a replacement index
• C. Compress the index
• D. Show document errors

Answer: (B)

Swapping the index means switching which index is actively used by the system by replacing the current active index with a prepared replacement index. This makes the replacement index the live one for search and retrieval, while the old index becomes the replacement slot to be rebuilt or kept offline. The benefit is you can update or repair the index with minimal downtime, using a known-good copy instead of rebuilding from scratch. This option is used when the current index needs replacement or maintenance, so the system continues to function while you prepare the new index. The other choices don’t fit because they describe deactivating, compressing, or reporting errors, not swapping in a replacement index.