Test Information:
Total Questions: 74
Test Number: C5050-408
Vendor Name: IBM
Cert Name: IBM Certified Mobile Application Developer
Test Name: IBM Worklight Foundation V6.2, Mobile Application
Development
Official Site: http://www.certsgrade.com
For
More Details: http://www.certsgrade.com/pdf/C5050-408/
Version: 8.0
Question: 1
An
application developer wants to test the application inside Worklight Studio but
with an external Liberty profile. Using the RUN As > Build Settings and
Deploy Target command, the application developer configured the Worklight
Server with the external Liberty profile.
Before
the application developer can connect the application in Worklight Studio to an
existing Liberty profile, which of the following must the application developer
verify?
A.
In the worklight.properties file, the public WorkLightHostname is set to
localhost or true public listening IP.
B.
In the worklight.properties file, the public WorkLightHostname is set to *
(wildcar symbol) or true public listening IP.
C.
In server.xml of the target server, the host attribute inside the element is
set to localhost or true public listening IP.
D.
In server.xml of the target server, the host attribute inside the httpEndpoint
element is set to * (wildcard symbol) or true public listening IP.
Answer: C
Explanation:
To
configure WebSphere Application Server Liberty profile for the Worklight Server
administration manually, you must modify the server.xml file.
Add
the following global JNDI entries in the server.xml file:
<jndiEntry
jndiName="ibm.worklight.admin.jmx.host"
value="localhost"/>
<jndiEntry
jndiName="ibm.worklight.admin.jmx.port" value="9443"/>
<jndiEntry
jndiName="ibm.worklight.admin.jmx.user"
value="WorklightRESTUser"/>
<jndiEntry
jndiName="ibm.worklight.admin.jmx.pwd" value="WorklighRESTUserPassword"/>
<jndiEntry
jndiName="ibm.worklight.topology.platform"
value="Liberty"/>
<jndiEntry jndiName="ibm.worklight.topology.clustermode" value="Standalone"/>
Where:
ibm.worklight.admin.jmx.port
is the HTTPS port. You can find its value in the httpEndpoint element of the
server.xml file.
References
https://www.ibm.com/support/knowledgecenter/SSZH4A_6.2.0/com.ibm.worklight.installconfig.doc/admin/
t_configuring_liberty_profile_for_wladmin_manually.html
Question: 2
An
application developer is testing an adapter that is retrieving data from a
remote database. The developer can find no problems with the adapter and seems
to be retrieving data from the database as designed. The quality assurance team
insists that users are seeing each other's data.
Which
adapter configuration setting does the application developer need to set to
resolve this issue?
A.
Set the <authentication> element of the adapter to <basic/>.
B.
Set the connectAs attribute of the <procedure> element of the adapter XML
file to endUser.
C.
Specify the proper userid in the <connectionPolicy> element of the
adapter.
D.
Specify IGNORE_COOKIES as the cookiePolicy attribute in the
<connectionPolicy> element of the adapter.
Answer: B
Explanation:
In
order to support stateful backend HTTP adapter procedures can be configured to
work in a connectAs=“endUser” mode. This mode means that a separate instance of
HTTP session will be created for each client session.
References:
https://www.ibm.com/developerworks/community/blogs/worklight/entry/
configuring_http_adapters_for_stateless_stateful_backend_connectivity_and_user_identity_propagationlang=en
Question: 3
An
application developer is concerned about how many requests may hit the adapter
being created. The developer wants to ensure that the adapter can handle enough
requests, but yet not allow requests to overwhelm the system.
What
can the application developer do to limit the number of requests that an
adapter will handle?
A.
In the web server configuration, specify number of requests for MaxClients.
B.
In the application server configuration, specify the number concurrent requests
for the servlet engine.
C.
In the loadContraints element of the adapter XML file, specify the number of
requests formaxConcurrentConnectionsPerNode.
D.
In the connectionPolicy element of the adapter XML file, specify the number of
requests formaxConcurrentConnectionsPerNode.
Answer: D
Explanation:
Tuning Back-end Connections
maxConcurrentConnectionsPerNode
– The maximum number of concurrent requests that can be performed on the
back-end application from the Worklight server node. The worklight server will
create a thread pool with maxConcurrentConnectionsPerNode size for that purpose. This maxConcurrentConnectionsPerNode
parameter is set in the adapter.xml in the connectivity entry.
References:
https://www.ibm.com/developerworks/community/blogs/worklight/entry/tuning_worklight_server?lang=en
Question: 4
An
application developer is attempting to update specific portions of a hybrid
application by utilizing the direct update feature.
Which
components can the application developer update using the direct update feature
without having to rebuild and deploy a new binary of the application?
A.
HTML, CSS, JavaScript
B.
HTML, CSS, JavaScript, Java
C.
HTML, CSS, JavaScript, Objective C
D.
HTML, CSS, JavaScript, Version number
Answer: A
Explanation:
When
you want to deliver a Worklight hybrid application that consists mainly of
HTML5 with CSS and JavaScript, and you must change the hybrid part of the
application to provide new features or to fix a defect, you do not have to ask
the application users to update it on their devices. You can use the Worklight
direct update mechanism to deploy new HTML with CSS and JavaScript for your
application without changing the application version on the mobile device.
Incorrect:
Not
D: Delivering a new version of native code
The
main reason that you would want to deliver a new version of an application is
probably because your application uses native code and you want to provide new
features or deliver fixes that require changes in the native code. You might
also need to provide a new native version of the application, even if your
Worklight application is completely written by using web technologies, to
accommodate new mobile operating systems supported only in later versions of
IBM Worklight. You cannot use the direct update mechanism in either of these
cases. You must build and deploy a new version of the application.
Reference:
http://www.ibm.com/support/knowledgecenter/SSZH4A_6.2.0/com.ibm.worklight.dev.doc/devenv/
c_update_apps_wl_ac.html
Question: 5
The
application developer needs to test the Worklight application on a remote
server. In Worklight Studio, the application developer configures the remote
server by right clicking on the {app_name} folder and selecting Run As >
Build Settings and Deploy Target.
Which
step does the application developer need to perform to ensure the server
configuration changes are reflected in the application?
A.
Run As > Run on Server
B.
Run As > Build and Deploy
C.
Run As > Apply Build Settings
D.
Run As > Build All Environments
Answer: D
Explanation:
The
Build Settings and Deploy Target dialog is used only to specify configurations
and settings; clicking OK does not trigger a build. Any time that you make a
modification with this dialog, you must rebuild your application and
environments for your changes to take effect, by using the Run As > Build
All Environments menu command.
References:
https://www.ibm.com/support/knowledgecenter/SSZH4A_6.1.0/com.ibm.worklight.dev.doc/dev/
c_building_and_deploying_build_settings_deploy_target.html
Question: 6
Which
one of the following correctly describes the content of the corresponding
Worklight Application folder?
A.
services folder – Contains client side services.
B.
server folder – Contains libraries to be placed in external service servers.
C.
bin folder – Contains project artifacts that are deployed to the Worklight
Server.
D.
externalServerLibraries folder – Contains references for application
development and deployment.
Answer: C
Explanation:
The
bin folder contains project artifacts that are deployed to MobileFirst Server.
Incorrect:
Not
D: externalServerLibraries: Contains the libraries to be placed in external
service servers and used for access token validation (by the service).
References:
https://developer.ibm.com/mobilefirstplatform/documentation/getting-started-6-3/hello-world/creating-your-firsthybrid-application/
Question: 7
Which
characteristic(s) of an application map to the respective development
approaches?
Characteristics
of the Application
A,
The application is written for a specific platform and runs on that platform
only.
B,
The application runs inside the browser of the mobile device, and uses standard
technologies such asHTML5, CSS3, and JavaScript.
C,
The application runs inside a native container and uses the browser engine to
display the applicationinterface.
D,
The application is not distributed through an application store.
Development
Approach (see exhibit)
A.
1-A, 2-B, 3-C, 4-B
B.
1-B, 2-C, 3-A, 4-C
C.
1-B, 2-B, 3-C, 4-C
D.
1-C, 2-A, 3-B, 4-A
Answer: D
Question: 8
What
is the purpose of the Application Center?
The
Application Center is:
A.
used to share only Worklight applications among different team members within a
company.
B.
intended for production-ready applications only. Development team members
should look for other meansof collaboration.
C.
IBM's version of a public Application Store that targets usage outside of a
company, similar to the AndroidMarket or Apple's public Application Store.
D.
a means of sharing information among different team members within a company,
where some mobileapplications can be targeted to specific groups of users.
Answer: A
Explanation:
IBM
Worklight Application Center is an enterprise application store. It allows you
to install, configure, and administer a repository of mobile applications for
use by individuals and groups within your enterprise or organization. It is
built on top of the IBM MobileFirst Platform and the IBM Worklight mobile
application platform that enables you to develop, deploy, and manage mobile
applications.
References:
http://www.redbooks.ibm.com/abstracts/redp5005.html?Open
Test Information:
Total Questions: 74
Test Number: C5050-408
Vendor Name: IBM
Cert Name: IBM Certified Mobile Application Developer
Test Name: IBM Worklight Foundation V6.2, Mobile Application
Development
Official Site: http://www.certsgrade.com
For
More Details: http://www.certsgrade.com/pdf/C5050-408/
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