1. Explain why the interfaces to remote objects in general and CORBA objects in particular do not provide constructors. Explain how CORBA objects can be created in the absence of constructors.

2. Explain how the container-based philosophy could be adopted to provide migrationtransparency for distributed components.

3. Explain the role of a servlet container in the deploying of a web service and the execution of a client request.

4. Outline the replication scheme used in UDDI. Supposing that vector time stamps are usedto support this scheme, define a pair of operations for use by registries needing to exchange data.

5. In unstructured peer-to-peer systems, significant improvements on search results can be provided by the adoption of particular search strategies. Compare and contrast expanded ring search and random walk strategies highlighting when each approach is likely to be effective.