BackUp+Restore

Back-Up
Backed-up information includes purchased music, TV shows, apps, and books; photos and video in the Camera Roll; device settings (for example, Phone Favorites, Wallpaper, and Mail, Contacts, Calendar accounts); app data; Home screen and app organization; Messages (iMessage, SMS, and MMS), ringtones, and more. Media files synced from your computer aren’t backed up, but can be restored by syncing with iTunes.

iCloud and iTunes can back up most data on your iPhone, iPad, or iPod touch. [|IOS: Backing Up]

Restore
The iPad can be reset it to its factory (out of box) settings, which will wipe out all data, including any iTunes information stored on the iPad.