IBM C9510-418 Exam Practice Test Instant Access

Question 1

In an IBM WebSphere Application Server cluster, an administrator notices EJB requests are not evenly distributed on the cluster members during the load test.

What two things can the administrator verify in order to identify and resolve the issue? (Choose two.)

AEnsure Dynamic Workload Management is enabled.

BEnsure host scoped routing optimization is enabled.

CEnsure PMI Workload Management counters are enabled.

DEnsure each server in the cluster has an equal weighted value.

EEnsure the Web server plug-in is using the round robin algorithm.

Answer : A, D

A: Workload management optimizes the distribution of client processing tasks. Incoming work requests are distributed to the application servers, enterprise beans, servlets, and other objects that can most effectively process the requests.

D: The server weighted round robin routing policy ensures a balanced routing distribution based on the set of server weights that have been assigned to the members of a cluster. For example, if all servers in the cluster have the same weight, the expected distribution for the cluster is that all servers receive the same number of requests. If the weights for the servers are not equal, the distribution mechanism sends more requests to the higher weight value servers than the lower weight value servers. The policy ensures the distribution that you want, based on the weights that are assigned to the cluster members.

Question 2

Which statement describes the functionality of web containers?

AWeb containers forward EJB requests to the EJB container.

BWeb containers process JSPs, servlets, and various server-side objects.

CServlets requests are forwarded from an EJB container to a web container.

DEach application server can contain multiple web containers, depending upon the number of JSPs and servlets.

Answer : B

The runtime environment for Web components is called the Web container. It processes servlets, JSP files, and other types of server-side components.

Question 3

Heapdumps, javacores, and system cores are recommended to be generated for which kind of IBM WebSphere Application Server problems?

ASlow page rendering

BHigh CPU and disk I/O

CSlow File uploads and downloads

DSystem hangs and out of memory

Answer : B

Question 4

Which of the following is true of managing scopes in the Integrated Solutions Console?

AThe node scope has precedence over all the scopes.

BThe cluster scope has precedence over all the scopes.

CThe application scope has precedence over all the scopes.

DThe network deployment scope has precedence over all the scopes.

Answer : C

Question 5

When recording a response file, what must be done to skip the install?

ASpecify a response file location

BSpecify the existing registry location

CSpecify a temporary registry location

DSpecify a master password repository

Answer : B

Question 6

What data source property can an administrator configure to minimize the chances of encountering StaleConnectionExceptions?

AMinimum connections = 0

BReap Timeout < Unused Timeout

CPurge Policy = FailingConnectionOnly

DUnused Timeout > Half firewall timeout

Answer : A

The configuration options below help minimize the chances of encountering StaleConnectionExceptions by helping to ensure that your WebSphere Application Server maintains control of database connections, specifically, the only one closing them, rather than other components in your network:

The datasource MIN connections should be set to 0. By setting a MIN > 0, you are telling the application server that this number of connections will be valid for the life of the application server JVM. Unless you can guarantee the MIN number of connections will never be timed out or dropped, setting a MIN will cause a StaleConnectionException when the connection becomes invalid.

Question 7

A system administrator has downloaded IBM WebSphere Application Server binaries and created a local IBM Installation Manager repository.

What can the system administrator do to ensure only this local Installation Manager repository is used during installation of the product?

ACreate a preference for the public repository.

BUse the Packaging Utility to create the repository.

CMake sure the metadata for the repository includes the value ''local''.

DClear the Search service repositories during installation and update option.

Answer : B

IBM C9510-418 IBM WebSphere Application Server Network Deployment V9.0 Core Administration Exam Practice Test