WebSphere Application Server V5.0,
Exam Questions, Answers,
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Upon monitoring an application it is found that the
passivation and activation counters for EJBs are extremely
high. What is the BEST change to be made to the server
configuration to improve EJB subsystem performance?
A. Increase the JVH heap size
B. Increase the EJB cache size
C. Increase the EJB cache cleanup interval
D. Increase the maximum ORB service connector cache
A Web application is suspected to have a (concurrent
access) synchronization problem. Which PMI modules should
be monitored to try and isolate the performance problem?
A. Dynamic cache
B. J2C connectors
C. Web applications
D. JVM runtime
E. Web container thread pools
A high volume application in a clustered environment
uses only local sessions. Occasionally a request having
session affinity is routed to an alternative application
server. This happens even when the application server
with affinity does not fail. What is the most likely
A. The session time-out value is set too high
B. The session cache size is configured to be too small.
C. The web container thread pool for the application
is too small on each server.
D. It is the nature for session affinity with local
What should an administrator guarantee to ensure that
the following command performs as expected when run
on the deployment manager node? BackupConfig cellBackup
-nonstopA. All application code must be present on the
deployment manager node.
B. No configuration changes should be made while the
C. The command should be preceded by a syncNode command
from the deployment manager node.
D. The file cellBackup does not already exist.
Concurrent access to HttpSession objects is possible
in a certain application. The BEST approach for the
system administrator to make this behavior safe involves:
A. Checking the "Allow serial access" session
management property for the installed enterprise application.
B. Checking the "Allow serial access" session
management property for the application server on witch
the application is installed.
C. Checking the "Allow overflow" session management
property for the installed enterprise application.
D. Having the developer mark all application methods
that access the session as synchronized.
An enterprise application has an execution profile where
50% of the HTTP requests hit the EJB layer. Which pair
of application server setting best fit this application
profile? L. Maximum web container thread pool size =25ll.
Maximum web container thread pool size = 50 lll. Maximum
ORB service thread pool size = 25 IV. Maximum ORB service
thread pool size = 50 v. maximum EJB cache size = 25
VI. Maximum EJB cache size = 50
A. I and IV
B. I and III
C. II and III
D. II and V
E. III and VI
Which of the following manual tasks may need to be carried
out before distributing plugin-cfg.xml to web server
A. Edit plugin-cfg.xml Virtual Host names to coinclide
with the virtual host name defined within the corresponding
B. Edit plugin-cfg.xml cbsolute file paths to reflect
the web server.s local filesystem.
C. Generate the keyring and stashfile if using SSL between
the plug-in and application servers.
D. Update the domain suffix for each virtual host in
During a stress test on an application, it was found
that there was a large number of prepared statement
discards associated with one Datasource. All other metrics
were within expected range. The BEST way to increase
performance of this application is to make what change
to the Datasource properties?
A. Increase the statement cache size
B. Increase the minimum connections.
C. Increase the maximum connections.
D. Change the purge policy to "Entire Pool".
An application server is closing HTTP connections prematurely.
Assuming that MaxKeepAliveConnections is already set
at 90% of the maximum number of threads in the Web container
thread pool, what Web container setting should be modified
to improve this situation?
A. Set the MaxKeepAliveRequests property to a sufficient
B. Set the MaxKeepAliveConnections property to a sufficient
C. Increase the Web container thread pool maximum size.
D. Increase the ORB service thread pool maximum size.
What would be the practical consideration for creating
smaller application servers each running one different
web application rather than a single large application
server for an application architecture?
A. The aggregated plug-in config file will contain less
B. Multiple smaller servers provide better application
C. There will be a decrease in response time due to
interproces RMI/IIOP salls
D. Multiple smaller servers eliminate single points