Enterprise Connectivity with J2EE V1.3
Questions, Answers, Braindumps (000-484)
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Which of the following statements are TRUE regarding
performance and scalability for the J2EE architecture?
A. Using session beans can improve an application's
performance, since they typically require less distributed
messaging than entity beans.
B. Disabling passivation and activation will improve
an application's performance, since time will not
be spent moving objects in and out of memory.
C. In general, more restrictive transaction isolation
levels slow down an application's execution.
D. In general, servlets perform poorly compared to
CGI programs when servicing multiple clients.
When chaining servlet Filters, which of the following
methods needs to be invoked so that the next filter
in the chain gets exercised?
An EJB was developed with neither remote home interface
nor local home interface. What type of bean MUST it
A. stateless session bean
B. stateful session bean
C. BMP entity bean
D. CMP entity bean
E. message-driven bean
A stateful Session bean is deployed using the container-managed
transaction demarcation attribute RequiresNew. Which
of the following are TRUE regarding exceptions in
its business methods?
A. Transaction rollback occurs automatically when
an application exception is thrown.
B. Transaction rollback occurs automatically when
a system exception is thrown.
C. Transaction rollback restores bean state.
D. If EJBException is thrown by a business method,
it must be declared in its throws clause.
E. Application exceptions should normally be passed
directly through to the caller.
A J2EE Web application needs to access an Enterprise
Information System (EIS) in order to process Web user
requests. Given that the EIS is capable of handling
only a limited number of concurrent requests and is
not a relational database, what technology would be
BEST suited to integrate the J2EE Web application
with the target EIS?
An application accepts input from a user and passes
data to a server. The client is using a Web browser,
anonymously accessing the server from the Internet
through a firewall. What middleware solution BEST
fits this scenario?
Which of the following statements is FALSE regarding
the J2EE architecture?
A. Remote interfaces reduce coupling between EJB clients
and application server generated code.
B. Containers manage transactions without involvement
of deployment descriptors.
C. EJB and JSP behavior can be customized for a particular
project through the use of deployment descriptors.
D. JNDI provides a standardized way for EJBs and servlets
to find resources.