InfoSphere Datastage Enterprise Edition certification study guides

The set of study materials and Q&A listed below help prepare for both the IBM WebSphere IIS DataStage Enterprise Edition v7.5 (000-415), Infosphere Datastage v8.0 (000-418) and IBM InfoSphere QualityStage v8 (000-419) certification exams.
Please keep in mind that getting certified is not only studying the materials and learning Q&A. The first and the most important step is to work hard on projects, gain professional experience, experiment with the tool and become proficient using it.

Certification topics:
Reading and writing null values in Datastage EE
How to manage Datastage DataSets?
What gets deployed when installing an Information Server Domain?
What is included in the configuration layers?
What is the IBM Information Server startup sequence?
What privileges are required to run a parallel job?
What is the default ip address and port for Information Server Web Console?
What are datastage user roles?
What is the server-side tracing?
Datastage imports and exports