Win a copy of The Java Performance Companion this week in the Performance forum!
  • Post Reply
  • Bookmark Topic Watch Topic
  • New Topic

ejb quiz

 
Shankar Ranganathan
Ranch Hand
Posts: 71
  • Mark post as helpful
  • send pies
  • Quote
  • Report post to moderator
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
 
  • Post Reply
  • Bookmark Topic Watch Topic
  • New Topic