There are around 13 pages currently with more than 50+ questions. You can view questions by clicking on Next Page and Previous Page at bottom of page. There you might find some good appsdba interview questions with answers and few are without answers which I am going to update soon . These questions are usually asked in apps dba certification as well.
Based on feedback from one on you I have listed what pages have been changed on my site at http://teachmeoracle.comon right bar under small table with heading "Recently Updated" so you can check what's new posting with date .
If you are not happy with answer or want to submit any question for other apps dba's mail me at firstname.lastname@example.org