Can other trainings help you answer these questions.

How can one decide which institute or trainer is the best when one doesn't know the topic.  It's a catch-22 situation. 

So, I compiled a list of questions.  You should ask the institutes or trainers that you may be considering for taking SOA BPEL Training whether their training will enable you to answer these questions. 

1. Is Oracle SOA same as Oracle Fusion Middleware
2. What is SOA Governance
3. How to install SOA Suite
4. What is the difference between Basic and Advanced Installation of SOA Suite
5. Is it possible to use MS SQL Server as dehydration store with SOA Suite
6. What are the various elements in WSDL
7. Why do we need to have messages in WSDL, aren't operations and types enough to describe the parameters for a web service
   
8. What is structure of SOAP message
   
9. Can I call an asynchronous process from a synchronous process.  Are their any limitations (how much time is permissible for async process to return)
10. How to ensure that parallel flows implemented through Flow activity are 'really' parallel
11. How to develop a web service bottom up
12. How to return a fault from BPEL process.  Do I need to change the WSDL.  Do I need to do it manually
    
13. How to add a specific catch handler for binding fault
14. How to add a specific catch handler for timeout
15. How to use sensors
16. How to use BPEL properties to externalize constants in BPEL processes
17. Is it possible to set a timeout when calling a synchronous process
18. Is it possible to timeout a asynchronous process
    
19. What are the various interaction patterns that can be implemented
20. Is it possible to escalate a notification during human task
21. What are the various options of calling Java code from BPEL processes
22. What are the various options available for scheduling a BPEL process
23. How to call BPEL from java
24. How to call BPEL from PLSQL
25. How to call BPEL from Excel
26. How to use business rules in BPEL process
27. How to delete a file on a FTP server through BPEL
28. How to use In-memory, File based and AQ-based JMS
29. How to use Apps adapter to call a concurrent program
30. How to use content based and header based routing
31. How to change the filename when writing a file through adapter
32. What is DVM
33. What is OAGIS
34. How to do error handling in ESB.  Is error handling different across synchronous and asynchronous ESBs
35. What happens if an adapter rejects a file or a message when reading it.  How to retrieve this message
36. What is AIA.  Why is it such a cool idea...why is it such a hot skill!
    
37. How to set log levels for performing detailed debugging
38. How to see logs in enterprise manager
39. What is meant by logfile rotation
40. Would you provide questions, roadmap and resources for Interview Preparation

There are many more questions that you would need to know the answers for if you want to land into a job, but for the purpose of evaluating the quality and completeness of a SOA BPEL training course, these should be enough.  I call this a 40-question litmus test !.  The training you would get from this site will cover all these topics.