|Exam Name||:||Developing Java applications for the(R) BlackBerry Platform|
|Questions and Answers||:||124 Q & A|
|Updated On||:||November 17, 2017|
|PDF Download Mirror||:||BCP-811 Dump|
|Get Full Version||:||Pass4sure BCP-811 Full Version|
Consider the following class:
What will happen when this class is compiled and run? (Choose one.)
The class will fail to compile
The output will be null
The output will be 0
The output will be 1
The output will be 2
Consider the application source code below. It displays a dialog and then exits when someone hangs up during a phone call.
In which two locations does this application contain memory leaks? (Choose two.)
CallingSystem.exit() on the event thread does not properly clean up memory
A reference to the Application object exists after the application exits
The BlackBerry device user cannot terminate the application due to its lack of a user interface
The phone listener is added beforeenterEventDispatcher() is invoked
The phone listener is never a candidate for garbage collection
The following code sample overrides the paint method of a class that extends MainScreen:
What problem exists in this code? (Choose one.)
Callinggraphics.clear() within the paint method results in a blank screen being shown to the BlackBerry device user
Calling invalidate within the paint method triggers another call to paint, resulting in an endless loop
MainScreen does not support overriding its paint method
The coordinate values specified within thedrawText method must be greater than 0
Callingsuper.paint(graphics) within the paint method triggers another call to paint, resulting in an endless loop
According to the BlackBerry device UI Guidelines, what should the BlackBerry device user be able to accomplish by repeatedly pressing the escape key? (Choose one.)
Exit the application
Return to theHomeScreen
Cancel a dialog screen
Return to the main screen of the application
Return to the previous screen
A BlackBerry CLDC application allows the BlackBerry device user to specify an image that can be used as the application background.A BlackBerry CLDC application allows the BlackBerry device user to specify an image that can be used as the application? background. Which two of the following techniques should be used to draw the image in the background? (Choose two.)
Use theBackgroundFactory class to create a custom background and add it to the application screens using the setBackground method
Override the paint method of the manager used by the application screens to draw the background image
Pass the image to thesetBackground method of the application screens
Create a semi-transparentPopupScreen that displays the image, which is shown at top of the application
Add aBitmapField that contains the image to the application screens
An application uses a remote server to retrieve weather information and display it to the BlackBerry device user using custom graphics. The application will run on a variety of BlackBerry device models using the same set of graphics. Which two of the following APIs should the application be using in its implementation? (Choose two.)
A developer has been asked to write an application to programmatically create a partial email message that is displayed to the BlackBerry device user for completion. Which approach will accomplish this with the smallest amount of developing? (Choose one.)
Invoke the messages application with the partial message
Duplicate the UI in the messages application
Use the Black Berry messaging API
Override the messaging method
Copy the partial email message text into the clipboard and invoke the message application
An application stores timing data to determine average throughput. It is normally started by the BlackBerry device user and continues to run indefinitely. The timing algorithm adds the current time into a Vector at regular intervals and then computes the average throughput at the same intervals. The computed average is then reported to the user in the application graphical user interface. What is the problem with this algorithm in terms of its memory usage? (Choose one.)
A Vector is an inefficient structure for this type of data
The data will not be garbage collected when the application exits
The data should not be stored in persistent memory
The default capacity increment of the Vector is too small
The memory use increases the longer the application is alive
The code below triggers an IllegalStateException after the BlackBerry device user clicks on its icon on the home screen. Why was this exception thrown? (Choose one.)
MyThread does not have permission to access myField
The application attempted to update a displayed screen from outside of the main event thread
The application attempted to modify themyField field before it was fully displayed
The application attempted to instantiate themyField field outside of its constructor
MyThread updated the myField field with text of a longer length without first resizing itMyThread updated the myField field with text of a longer length without first resizing it
When does the event thread of an application terminate? (Choose one.)
When the application is exited
When an application creates a new thread
When a screen is closed
When an application is sent to the background
When all input fields are removed from a screen
Product marketing has announced that an application in development will have the ability to automatically save email message attachments if they come from a BlackBerry device user contact list. This feature however, goes beyond the requirements of the original plan. Therefore, a developercome from a BlackBerry device user? contact list. This feature however, goes beyond the requirements of the original plan. Therefore, a developer needs to add this feature to the application. Which three of the following APIs could a developer use to implement this feature? (Choose three.)
Attachment Answer: A, B, E QUESTION: 121
When push authentication is enabled on a BlackBerry Enterprise Server, which type of authentication must the push application use when submitting a push request? (Choose one.)
Digest Access Authentication
Public Key Authentication
HTTP Basic authentication
Which two of the following file extensions represent RIM specific internationalization resource files? (Choose two.)
An application allows doctors to view and update patient records. Patient record data is kept in a custom persistable class. The doctor could store thousands of patient records within the application, viewing and updating multiple records throughout the day. Which two will allow for the most efficient storage and retrieval of data using the BlackBerry Persistent Store? (Choose two.) A Use a Vector to store all records
Use an array to contain all records
Use object grouping on all records
Use aPersistentObject for each record
Use aHashtable to hold all records
A developer has been asked to write an enterprise application that connects to a server through a BlackBerry Enterprise Server. Which URL parameter should be used in Connector.open()? (Choose one.)
i wished to give you an update on our BlackBerry® Developer Certification application and outline the persevered alternatives that you should showcase your abilities on a BlackBerry® smartphone.
As Sanyu noted in her old submit, there are two streams available within the program to turn into a BlackBerry licensed utility Developer (see above photo).
We first showcased the BCP-810 exam at our BlackBerry Developer conference, and the BCP-811 examination in beta layout. both the BCP-810 and BCP-811 assessments have now been finalized and can be found to any individual seeking to develop into a BlackBerry certified application Developer with a spotlight on Java®.
For our internet construction viewers, we're at present internet hosting BCP-812 in beta format. As a part of the beta, we are seeking for 40 individuals who would like to volunteer to take the examination (we will waive our test registration fee) and provide comments on the questions. in case you are interested in volunteering to take the beta exam, please contact us at email@example.com and we can be happy to ship you more suggestions.
which you can check in and take any of the tests via our examine companion at thousands of examination centers international. The certifications are currently best purchasable in English, and i would want to hear about extra languages that individuals have an interest in – please depart a remark and tell us! also, please drop us a remark – or ship us an electronic mail – when you've got taken the BCP-810 or BCP-811 tests, as we'd love to hear your remarks.
Mike Kirkup is the Director for the Developer family members software at analysis In action (RIM), which is liable for managing the technical relationships and classes for RIM’s developer neighborhood international. Mike and his crew work with RIM’s developer group to give support and tips as developers work to combine their purposes to the BlackBerry platform. Mike joined RIM in 2001 as a security utility Developer in RIM’s wireless security neighborhood. As part of the instant Securty group, Mike contributed to the development of the BlackBerry Cryptography API, S/MIME and PGP implementations. Mike holds a Masters of administration Science and a Bachelor of arithmetic from the college of Waterloo.
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