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

Question 4

Which two IBM WebSphere Application Server components should administrators consider when planning for a high availability environment? (Choose two.)

Select all that apply, then click Submit answer.

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User registries
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Messaging engines
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Caching proxy servers
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Back-end servers, such as database, enterprise information systems, etc.
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Containers, such as the web, Enterprise JavaBeans (EJB), and Session Initiation Protocol (SIP)

Question 5

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.)

Select all that apply, then click Submit answer.

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

Reference / correct answer:

Ensure Dynamic Workload Management is enabled.

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

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

Question 6

When setting up high availability settings for the web server, at what level should an administrator configure the custom properties?

Select an option, then click Submit answer.

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cell
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node
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server
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nodeagent

C9510-418 – IBM WebSphere Application Server Network Deployment V9.0 Core Administration