QUESTION: 57

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.)

Ensure Dynamic Workload Management is enabled.
Ensure host scoped routing optimization is enabled.
Ensure PMI Workload Management counters are enabled.
Ensure each server in the cluster has an equal weighted value.
Ensure the Web server plug-in is using the round robin algorithm.

Answer(s): A,D

Explanation:

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.

Reference:

https://www.ibm.com/support/knowledgecenter/en/SSAW57_8.5.5/com.ibm.websphere.nd.doc/ae/crun_srvgrp.html

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QUESTION: 58

Which two statements describe a web server in a cell topology?

Creating a new node for a web server adds a managed node.
Creating a new node for a web server adds an unmanaged node.
Adding a web server to an existing node creates a managed node.
Deleting a web server from an unmanaged node creates a managed node.
Deleting a web server from a managed node creates an unmanaged node.

Answer(s): A,E

Explanation:

A managed node must exist to define a Web server definition, which is always on a managed node.

Reference:

https://www.ibm.com/support/knowledgecenter/en/SSAW57_8.5.5/com.ibm.websphere.nd.doc/ae/tins_webplugins_single.html

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QUESTION: 59

When administrative security is enabled, what is the minimum administrative role needed to create a resource, install, and uninstall an application?

Monitor
Operator
Configurator
Administrator

Answer(s): B

Explanation:

An individual or group that uses the configurator role has the monitor privilege plus the ability to change the WebSphere Application Server configuration. The configurator can perform all the daily configuration tasks. For example, a configurator can complete the following tasks:
-Create a resource.
-Map an application server.
-Install and uninstall an application.
-Deploy an application.
-Assign users and groups-to-role mapping for applications.
-Set up Java 2 security permissions for applications.

Incorrect Answers:
A: An individual or group that uses the monitor role has the least amount of privileges. A monitor can complete the following tasks:
-View the WebSphere Application Server configuration.
-View the current state of the Application Server.

C, D: Not minimal roles.

Reference:

https://www.ibm.com/support/knowledgecenter/en/SSAW57_8.5.5/com.ibm.websphere.nd.doc/ae/rsec_adminroles.html

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QUESTION: 60

Which of the following is true about creating multiple security domains?

A new security domain can be created only using the administrative console.
Global security must be enabled before creating new multiple security domains.
Only users assigned to the security-admin role can create new multiple security domains.
If a unique name for the domain is not specified, the system will automatically create one.

Answer(s): C

Explanation:

Only users assigned to the administrator role can configure multiple security domains.

Reference:

https://www.ibm.com/support/knowledgecenter/SSAW57_8.5.5/com.ibm.websphere.nd.doc/ae/csec_sec_multiple_domains.html

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QUESTION: 60

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