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Question 6:

Ibid is an e-auction house that auctions refurbished products. Each product has a minimum bid price. Buyers can query the system for a list of products and then select a product to bid on. They can then place a higher bid on the selected product. Transactional Integrity is very important as dirty reads, non-repeatable reads and phantom reads can lead to data inconsistency. What technology combination might be most suitable for addressing Ibid's needs?

 

Applets for presentation and JTA/JTS for transactional integrity.

HTML and JSP for presentation, and Servlets for data retrieval and transaction management.

Servlets and JSP for presentation, a stateful session bean with DAO for list retrieval and a stateless session bean for transaction management.

Servlets and JSP for presentation, a stateless session bean with DAO for list retrieval and CMT Entity bean for Transaction management.

Servlets and JSP for presentation, and a Java class to encapsulate database access and transaction management.