Last Updated on 11 months ago by School4Seo Team

• As a backup for a VAST asset
• When a video ad contains interactive features
• For videos served on mobile devices
• When VAST is not supported

The correct answer is: When VAST is not supported

Explanation: VPAID is a rich media creative that is delivered as an additional media asset type within a VAST tag. VPAID is typically used for ad interactivity in a publisher’s in-stream video player. VPAID Asset would be used when the VAST is not supported.