Problem 2
State whether each of the following is true or false. If false, explain why. a) RMI uses the same underlying communication protocol as CORBA. b) TIEs are POAs that use the delegation model. c) The Event Service allows only one delivery model at a time: Either pull or push, but not both. d) Session CORBAcomponents are equivalent to EJB stateless session beans. e) Session CORBAcomponents are equivalent to EJB stateful session beans. f) Enterprise JavaBeans specify the use of an Event Service. g) CCM supports multithreaded containers.
Problem 3
Write a Quoteservice that works in either a push or pull model: define an operation to allow clients to register and receive Quotes (push) and define another operation to return a Quote for a specific Symbol (pull). Write a test client that gets pushed by the server and also pulls Quotes from the server.
Problem 5
Modify the Quoteservice to return an array of Quotes based on an array of incoming Symbol names.
