Web Services Final

Fall 2005

1. What type of information is normally contained in a UDDI entry? NOTE: explain in 2-4 short paragraphs

2. What's the difference between a UDDI registry and a WSDL repository?

3. What's the purpose of UDDI4J?

4. WS-Security has been developed to allow flexibility (to preserve investment in existing technology) while still addressing the main issues. Discuss in detail two of the issues from the list below (you may get information from the book or from websites):

SSL as a security protocol (what it is, shortcomings, strengths, etc)
Crossing trust domains (what that means, how it's provided for, etc.)
Cryptography (public vs private key issues, digital signatures, etc.)
Security specifications - explain figure 9.12, how do they all fit together?
Mobile device issues
XML and security - discuss XML encryption, XML signature, XML key management etc.

5. What is grid computing? What's the relationship between web services and grid computing?

6. Discuss one of the following in detail:

Guidelines for best practices: what are some lessons learned so far? what are remaining issues?
BPEL: what's the purpose? Describe one example of how it could be used.
What is the purpose of WS-Resource framework? Explain how resources are modeled/accessed etc.