What file extension is commonly associated with the AppCache manifest that enables offline functionality?

What file extension is commonly associated with the AppCache manifest that enables offline functionality?

• A. .manifest
• B. .cache
• C. .offline
• D. .appcache

Answer: (D)

Offline functionality through the Application Cache relies on a manifest file that lists which resources to cache for offline use. The file that serves as this manifest is commonly named with the .appcache extension, signaling its role as the AppCache manifest. Web pages link to it via the manifest attribute on the HTML element, and the browser uses the manifest’s contents (beginning with CACHE MANIFEST and detailing resources to cache) to provide offline access. The .appcache extension is the conventional and widely recognized naming, making it the best choice. Other extensions like .manifest, .cache, or .offline aren’t the standard convention for AppCache, even though files could technically be named differently in some setups.

Offline functionality through the Application Cache relies on a manifest file that lists which resources to cache for offline use. The file that serves as this manifest is commonly named with the .appcache extension, signaling its role as the AppCache manifest. Web pages link to it via the manifest attribute on the HTML element, and the browser uses the manifest’s contents (beginning with CACHE MANIFEST and detailing resources to cache) to provide offline access. The .appcache extension is the conventional and widely recognized naming, making it the best choice. Other extensions like .manifest, .cache, or .offline aren’t the standard convention for AppCache, even though files could technically be named differently in some setups.