Which one of the following is NOT a feature provided by EJB that provides scalability? a. The ability to add additional EJB containers b. The ability to invoke object methods remotely c. The ability to distribute responsibilities in a multi-tier environment d. The ability to pool instances of Enterprise Java Beans e. The ability to enforce the ACID properties of concurrent transactions 2. Which one of the following is a benefit of using an Object-Relational Mapping such as Entity Beans? a. Relational tables were originally designed to hold objects. b. No database knowledge is needed. c. Storing serialized objects saves space. d. Objects are populated only when needed. e. Storage is saved because data is not persistent.
3. Which one of the following characteristics is NOT true of RMI and Enterprise Java Beans? a They must execute within the confines of a Java virtual machine (JVM). b They serialize objects for distribution. c They require .class files to generate stubs and skeletons. d They do not require IDL. e They specify the use of the IIOP wire protocol for distribution.
4. In the EJB 1.1 spec, access to an EJB home object from a standalone client must take place via which one of the following? a RMI over JRMP b It is left to the container provider to decide. c CORBA over IIOP d RMI over IIOP e CORBA over any protocol