IBM C9510-401 Exam Practice Test Instant Access

Question 1

A web application has a configured session timeout of eight hours and a default LTPA token timeout of two hours. After every two hours, the users have to log in again from their HTTP browser. The system administrator is required to make configuration changed so users only have to log in once, while keeping the above mentioned timeouts the same. The authentication mechanism available is Kerberos.

How should the administrator do this?

AConfigure the SIP digest authentication.

BConfigure the SPNEGO Web or SPNEGO TAI.

CEnable Session Management Security Integration.

DEnsure Web Inbound security attribute propagation is enabled.

Answer : B

In WebSphere Application Server Version 6.1, a trust association interceptor (TAI) that uses the Simple and Protected GSS-API Negotiation Mechanism (SPNEGO) to securely negotiate and authenticate HTTP requests for secured resources was introduced. This function was deprecated In WebSphere Application Server 7.0. SPNEGO web authentication has taken its place to provide dynamic reload of the SPNEGO filters and to enable fallback to the application login method.

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

Question 2

A system administrator in a bank was asked by business users to determine the most accessed JSP page in a web application at normal work load for marketing purpose.

Which tool should the administrator use to find the most used JSP page?

APerformance and Diagnostic Advisor

BIBM Support Assistant Data Collector

CHigh Performance Extensible Logging Log Viewer

DTivoli Performance Viewer (TPV) summary reports

Answer : D

Summary reports are available for each application server.

Tivoli Performance Viewer provides the following summary reports for each application server:

The servlet summary lists all servlets that are running in the current application server. Use the servlet summary view to quickly find the servlet that consumes the most time and the applications that use them, and to determine which servlets are invoked most often.

Etc.

References: https://www.ibm.com/support/knowledgecenter/SSEQTJ_8.5.5/com.ibm.websphere.base.doc/ae/uprf_tpvserverview.html

Question 3

A performance test team was testing the capacity of concurrent users of a web application deployed on a multi-processor server. While testing 250 concurrent users, the administrator discovers connections to the database are failing.

In response, a system administrator increased the connection pool to the maximum limit which the database allows and increased the prepared statement cache size. The test passed, but the application response time was slower.

How should the system administrator tune the data source properties to improve the application response time?

AChange connection pools purge policy.

BDecrease connection pool reap time.

CDecrease number of free pool partitions.

DDecrease the prepared statement cache size.

Answer : D

The higher the statement cache, the more system resources are delayed. Therefore, if you set the number too high, you might lack resources because your system cannot open multiple prepared statements.

References: http://www.ibm.com/support/knowledgecenter/en/SSAW57_8.5.5/com.ibm.websphere.nd.doc/ae/udat_jdbcdatasorprops.html

Question 4

A system administrator decides to use the advice from the Performance and Diagnostic Advisor to identify the optimum connection pool settings for data sources. In a cell, the data source db2datasource is defined under node scope and used by two servers from that node. The administrator receives two different sets of advice for db2datasource.

How should the administrator configure the data sources before reusing the Performance and Diagnostic Advisor?

ACreate a data source of the same name under cell scope.

BCreate a data source of the same name under server scope for each server.

CIncrease the minimum connection pool size for the data source.

DDecrease the maximum connection pool size for the data source.

Answer : B

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

Question 5

A system administrator has deployed web applications to a clustered environment where database session persistence is configured. The administrator needs to improve the response time and the throughput.

How can the system administrator do this?

ADisable server affinity.

BConfigure dynamic caching.

CConfigure a load balancer to spread work between existing web servers.

DTune the database session persistence to optimize for failover.

Answer : B

The dynamic cache service improves performance by caching the output of servlets, commands, and JavaServer Pages (JSP) files. WebSphere Application Server consolidates several caching activities, including servlets, web services, and WebSphere commands, into one service called the dynamic cache. These caching activities work together to improve application performance and share many configuration parameters that are set in an application server's dynamic cache service.

References: WebSphere Application Server V8.5 Administration and Configuration Guide for the Full Profile (July 2013), page 512

Question 6

Within a WebSphere Application Server Network Deployment cell, a system administrator needs to write a script to determine if a particular server is stopped. It is important that the wsadmin script explicitly return a status of stopped as opposed to just failing.

What wsadmin object should the administrator use to write this script?

AAdminApp

BAdminTask

CAdminConfig

DAdminControl

Answer : D

Use the AdminControl object to invoke operational commands that manage objects for the application server.

Many of the AdminControl commands have multiple signatures so that they can either invoke in a raw mode using parameters that are specified by Java Management Extensions (JMX), or by using strings for parameters. In addition to operational commands, the AdminControl object supports some utility commands for tracing, reconnecting with a server, and converting data types.

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

Question 7

A system administrator wants to learn some of the Jython scripting commands for the administration of the environment.

Which product feature should the administrator use?

AThe wsadmin.properties file to load a profile.

BThe AdminTask object to generate wsadmin scripts.

CThe guided activities panel from the Integrated Solutions Console (ISC).

DThe ''Log command assistance commands'' option in the Integrated Solutions Console (ISC).

Answer : D

IBM C9510-401 IBM WebSphere Application Server Network Deployment V8.5.5 and Liberty Profile Exam Practice Test