Serious (well sort of serious; however many things in life are far more important):
Retiring exam -> Replacement exam
1Z0-032 Oracle9i Database: Fundamentals II July 31, 2013 1Z0-052 Database 11g: Administration I or 1Z0-042 Database 10g: Administration I
1z0-032 is part of the set of two exams (1z0-032 + 1z0-033) to go from 9i DBA OCA to 9i DBA OCP
1z-052 is the 11g DBA OCA main exam.
1z0-053 (main exam wrt 11g DBA OCP) is essentially sort of equivalent to 1z0-032 + 1z0-033 (main exam wrt 9i DBA OCP ).
 While 1z0-007; 1z0-147 and 1z0-151 are effectively true replacement exams (sort of plug in/out replaceable mix and match); 1z0-031/2/3 are not quite so replaceable in the same way and mixing and matching exams from different series 1z0-03x; 1z0-04x; 1z0-05x would not be acceptable from a certification pre-requisite viewpoint .... though urchins may try to claim this through page 206.
( I dont do hyperion so I cant comment .... and of course R.I.P. OAS and netbeans).
 This page shows only recent retirements. It would be nice if it linked to a page showing all retirements ( thought probably only for me).