Which VVB CLI command can set an individual media file to an expired state?

The Cisco VVB caches media files (audio prompts) to improve performance. Administrators sometimes need to force individual cached entries to be refreshed by marking them as stale/expired so the VVB fetches a fresh copy from the media server.

Why the Correct Answer is Right: D is correct. The correct Cisco VVB CLI command syntax is 'set VVB cache stale_cache_entry < cache_entry_url > ', which marks a specific cached media file as expired, forcing the VVB to fetch a fresh copy on next access. This is documented in the Cisco VVB Administration Guide.

Why Each Incorrect Answer is Wrong: A is wrong because 'stale_cache_entries' (plural) would target all cached entries, not an individual file, and is not a valid CLI command. B is wrong because it mixes 'show' (a display command) with 'set' (a configuration command)—the syntax is invalid and contradictory. C is wrong because 'Outils' is a French word meaning 'tools' and is not a valid Cisco CLI keyword in any context.

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