This week's book giveaway is in the OO, Patterns, UML and Refactoring forum. We're giving away four copies of Refactoring for Software Design Smells: Managing Technical Debt and have Girish Suryanarayana, Ganesh Samarthyam & Tushar Sharma on-line! See this thread for details.
Q-1. What are the benefits of using the Data Access Object pattern? (Select two) a The type of the actual data source can be specified at deployment time. b The data clients are independent of the data source vendor API. c It increases the performance of data-accessing routines. d It allows the clients to access the data source through EJBs. e It allows resource locking in an efficient way. Answers: a and b