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IBM Worklight V6.0 Mobile Application Development Sample Questions:

1. A mobile application developer is using a Worklight adapter to retrieve an XML data feed from a remote system. The data obtained from the remote system contains much more data than is needed by the mobile application. What specific Worklight capability should the application developer use to reduce the data being returned from the Worklight adapter?

A) When calling the invoke command that retrieves the remote feed, specify a transformation that uses XSLT to parse the returned data.
B) Ensure that the XML feed only has the desired information returned.
C) When the data is returned to the mobile application from the Worklight adapter, use for-loops and string comparison to extract the desireddata.
D) Utilize a Java JSON library and call Java code from the the Worklight adapter that converts the returned XML data into a JSON object to bereturned from the adapter.

2. A mobile application developer needs to create an application for a hospital that will only allow a doctor access to medical records while inside the hospital. How can the mobile application developer accomplish this task using Worklight APIs?

A) On the device, use a PositionChange trigger to signal when the user moves into a different area, then use WL.Server.setUserRealm() toto allow or restrict access.
B) Within an adapter, add event listeners WL.Events.GEOFENCE_ENTER and WL.Events.GEOFENCE_EXIT so a callback sets a variable whenevera doctor moves in or out of the geofence. Check the variable when the adapter is called to determine if the doctor is in an authorized location. Ifnot, do not process further.
C) On the device, use WL.Client.isInsidePolygon() to determine if the doctor is in the hospital, then use WL.Server.setUserRealm() toallow or restrict access.
D) Within an adapter, use WL.Server.getClientDeviceContext() to determine if the doctor is in an authorized location. If not, do not processfurther.

3. A mobile application developer discovers that the internal application server will not start due to a port conflict. What should the application developer do to resolve this conflict?

A) Modify the server.xml file, changing the port value to an unused port number.
B) Locate and remove the wlp/user/servers/worklightServer/server.xml file and then restart the server so that it will create a newconfiguration on startup.
C) Install a new instance of the Worklight Studio so that the installation detects the existing server.
D) Modify the conf/tomcat-users.xml file changing the port value to an unused port number.

4. A mobile application developer is writing an application that pulls employee ID's from the empID database and uses those ID's to extract employee address information from the empAdr database on a different server. Using the Worklight adapter framework, how can the application developer accomplish this task?

A) Create two SQL adapters and call one adapter from another on the server side.
B) Create two SQL adapters and call one adapter from another on the client side.
C) Create a single SQL adapter and use database specific XML files.
D) Create a single SQL adapter and use database specific JavaScript files.

5. A mobile application developer has added the Android environment to a Worklight project and is preparing to build the APK file for testing in an Android emulator. What must the application developer do before building the APK file in Worklight Studio?

A) Create a Google Play account and install the Android SDK.
B) Create a Google Play account and install the Android Development Tools for Eclipse.
C) Install the Android SDK and the Android Development Tools for Eclipse.
D) Create a Google Play account and download an Android Virtual Device.

Solutions: