DEV 501 - Apex Integration Scenario

Having recently passed all three parts of the 501 certification, I would say that yes there is some you need to know about Apex integrations.

• you do not need to know the SOAP or REST integration for Salesforce customization. As in, you will not need to study the Tooling API or Metadata API
• you do need to know how you would write Apex code to integrate with an outside system, at least at a high level. That means understanding @future methods and limitations, HTTP callouts and limitations, and Batch Apex.

With all of that though, you only will need it for the multiple choice exam. The written portions will not (at least I have not seen it) include external integrations. Understand that you may not get any questions on the multiple choice about future Apex while someone else may get 10. It really is just luck for that.

I appeared for DEV 501 multiple choice question in May 2014. There was only one question related to use case for integration scenario. DEV 501 multiple choice question exam does not have questions related to SOAP or REST based API. So no need to worry. You should prepare for other exam topics in detail.