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Code d'Examen: BCP-811
Nom d'Examen: BlackBerry (Developing Java Applications for the BlackBerry Platform)
Questions et réponses: 122 Q&As

Code d'Examen: BCP-240
Nom d'Examen: BlackBerry (BlackBerry 10 Support Specialist)
Questions et réponses: 100 Q&As

Code d'Examen: BCP-220
Nom d'Examen: BlackBerry (supporting BlackBerry Devices BlackBerry Interent Service)
Questions et réponses: 128 Q&As

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NO.1 Where are notifications that an application has finished downloading from BlackBerry World
enabled?
A. Settings > Notifications > Other Applications > BlackBerry World > Download Notifications
B. Settings > Notifications > BlackBerry World > Download Notifications
C. BlackBerry World > Settings > General Settings > Download Notifications
D. BlackBerry World > Settings > Notifications > Download Notifications
Answer: C

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NO.2 By Default, how many devices can a single user activate to one given account?
A. One
B. Two
C. Five
D. Ten
Answer: D

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NO.3 How can a user tell if a read-only Wi-Fi profile has been pushed to the BlackBerry Smartphone
using the BlackBerry Device Service (BDS)?
A. The Wi-Fi profile will have a lock icon next to it.
B. The Wi-Fi profile will have a briefcase icon next to it.
C. There is no way for a user to tell which profiles have been pushed.
D. The Wi-Fi profile cannot be deleted, and all fields are greyed out and cannot be edited.
Answer: D

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NO.4 When using the accessibility feature "Magnify Mode ", what action can be taken to quickly
remove the magnification?
A. Go to Option -> Accessibility and disable Magnify Mode
B. Pinch with two fingers on the screen to zoom out.
C. Swipe down from the top of the screen with two fingers.
D. Click the center button between the volume keys.
Answer: C

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NO.5 All users are no longer able to activate using their Username. Activation Password and SRP .
However they are able to use a Fully Qualified Domain Name of the BlackBerry Device Service (BDS).
What setting in BlackBerry Administration Service (BAS) would be the most likely cause of this issue?
A. BlackBerry Dispatcher is configured with an Enterprise Proxy
B. Allow activation over BlackBerry infrastructure set to yes
C. Allow activation information to be emailed is set to no
D. Proxy profile is configured to use VPN incorrectly
Answer: B

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NO.6 Which of the following resources would enable a user who has lost a device to ensure that
their contact information is displayed on their BlackBerry?
A. BlackBerry Protect
B. BlackBerry Lost and Found
C. App World
D. BlackBerry Help
Answer: A

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NO.7 Which of the following is an essential aid to investigate a problem experienced on a BlackBerry
10 (BB10) smartphone when being reported to BlackBerry?
A. Playbook
B. BlackBerry Device Service (BDS) server name
C. The location of the device
D. The time of occurrence and the device logs
Answer: D

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NO.8 Performing a Security Wipe will delete which of the following?
A. All PIM information, pictures or videos but not downloaded applications
B. All data on the device including any pictures or videos, and downloaded applications
C. All data from the work perimeter
D. If work perimeter does not exist then all data but not downloaded applications
Answer: B

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Code d'Examen: BCP-811
Nom d'Examen: BlackBerry (Developing Java Applications for the BlackBerry Platform)
Questions et réponses: 122 Q&As

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NO.1 Consider the code below:
How will the connection route be affected? (Choose one.)
A. The connection is never routed through the BlackBerry Infrastructure
B. The connection is routed over the cellular network
C. The connection is routed over the Wi-Fi
D. The connection is routed over the BlackBerry Internet Service -B
E. The connection is never routed through the BlackBerry Enterprise Server
Answer: E

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NO.2 A customer needs an application that will store temporary data and expose it to other BlackBerry device
applications. Which API will meet this requirement? (Choose one.)
A. RuntimeStore
B. PersistentStore
C. Location Based Services
D. Global Events
E. Connector
Answer: A

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NO.3 A developer is designing a BlackBerry device application that provides summaries of large amounts of
data. The summaries require extensive computations. Which design approach will meet these
requirements? (Choose one.)
A. Store the full set of data locally on removable media using a compressed format
B. Supplement memory available on the BlackBerry device and compute the results locally
C. Use URL encodings to expedite the transfer of data between a remote server and the
BlackBerry device
D. Compute the summary on a remote server and access the results through a BlackBerry
Enterprise Server connection
E. Use local storage and the floating point processor on the BlackBerry device to speed up computations
Answer: B

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NO.4 Consider the addTask() method defined below. Its purpose is to receive incoming tasks and put them
into a Vector, _tasks. Another thread will continuously remove the task at index 0 from the Vector.
Assuming that addTask() is being invoked at a rate roughly equal to the rate at which the tasks are being
processed, which concurrency issue may occur during execution? (Choose one.)
A. Livelock
B. Deadlock
C. Race condition
D. Starvation
E. Unfairness
Answer: D

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NO.5 Consider the following small application which creates a linked list like structure:
After execution, at which statement does the ListElement object created at line 6 become a candidate for
garbage collection? (Choose one.)
A. 16
B. 17
C. 21C.21
D. 22D.22
E. 23E.23
Answer: B

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NO.6 Which push header should be used to verify that push requests are received by a BlackBerry device
application? (Choose one.)
A. X-Rim-Push-Reliability: Transport
B. X-RIM-Push-Deliver-Before Mon, 03 Aug 2009 15:52:00 GMT
C. X-RIM-Push-Deliver-After: Mon, 03 Aug 2009 15:52:00 GMT
D. X-Rim-Push-Priority: High
E. X-Rim-Push-Reliability: Application
Answer: E

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NO.7 Which two of the following operations should be avoided on the main event thread? (Choose two.)
A. Pushing a screen onto the display stack
B. Displaying a Dialog screen
C. Performing network communication
D. Calling the sleep method
E. Capturing of keyboard input
Answer: C,D

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NO.8 A developer has been asked to create an application that will display the full name of all people in a
BlackBerry device user address book. The following code is written:
Which two of the following actions must be taken before this code is executed to ensure
compatibility across all versions of BlackBerry Device Software? (Choose two.)
A. The application should initialize all entries of thecontactName String array to empty Strings
B. The application should use theContact.countValues method to verify that the Contact.NAME field
contains an entry
C. The application should verify that it can write to the user address book using
theApplicationPermissions API
D. The application should use theisNull method to verify that the Contact.NAME values are not null
E. The application should use theContactList.isSupportedField method to verify that the
Contact.NAME field can be read
Answer: B,E

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NO.9 Consider the Counter class whose code is below:
Assuming that the go() method is always invoked serially, why is a different count printed at the end
almost every time that it is invoked? (Choose one.)
A. Therun() method is not declared "synchronized"
B. The _count variable is not declared "synchronized"
C. The ++ operator is not atomic
D. The _count variable overflows
E. The Counter class is not declared "synchronized"
Answer: C

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NO.10 Consider the code below:
What is a more efficient way of calculating the midpoint? (Choose one.)
A. int midpoint = (int) ((double) width) / 2.0;
B. int midpoint = Fixed32.div(width, 2);
C. int midpoint = (int) (width * 0.5f);
D. int midpoint = width >> 1;
E. int midpoint = width >> 2;
Answer: D

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NO.11 An application is needed that can store a list of sales data and customer information. The application
will also need the ability to search through this data and summarize it in an efficient manner. Which data
storage mechanism will assist in meeting all of these requirements? (Choose one.)
A. SQLite
B. PersistentStore
C. RecordStore
D. RuntimeStore
E. FileConnection
Answer: D

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NO.12 An application requires the creation of a custom field that can display animation. Which class and
method combination should be used to accomplish this task? (Choose one.)
A. Field.paint(Graphics graphics)
B. MainScreen.paint(Graphics graphics)
C. Field.subpaint(Graphics graphics)
D. Screen.draw(Graphics graphics)
E. GameCanvas.paint(Graphics graphics)
Answer: A

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NO.13 An application receives notification that a new data object is being saved in the RuntimeStore. It may
take up to 60 seconds to save this data. Which method should the application use to obtain the object
from the RuntimeStore? (Choose one.)
A. get( long objectUID )
B. getInstance()
C. fetch( Class objectClass, long timeout )
D. waitFor( long objectUID )
E. put( long objectUID, Object anObject)
Answer: D

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NO.14 A BlackBerry device application collects information about several hundred books. The application
needs to sort books by title. Which combination of data structures should be used to manage the objects?
(Choose one.)
A.net.rim.device.api.util.SimpleSortingVector and net.rim.device.api.util.StringComparator
B. java.util.Hashtable and net.rim.device.api.util.StringComparator
C. net.rim.device.api.util.StringRepository and net.rim.device.api.util.StringPattern
D. java.util.TreeSet and net.rim.device.api.util.StringComparator
E. java.util.Stack and net.rim.device.api.util.StringComparator
Answer: A

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NO.15 Which two of the following classes could be used to check the coverage status? (Choose two.)
A. Radio
B. ConnectionFactory
C. TransportInfo
D. CoverageSate
E. CoverageInfo
Answer: C,E

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NO.16 Which block of code will ensure that a network connection has been closed? (Choose one.)
A. Exhibit A
B. Exhibit B
C. Exhibit C
D. Exhibit D
E. Exhibit E
Answer: A

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NO.17 Which three of the following options are contained in a component pack? (Choose three.)
A. BlackBerry Device Simulator
B. JavaDocs
C. API Library
D. Code signing keys
E. Unit Tests Framework
Answer: A,B,C

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NO.18 Which keys are required to use the encryption classes in the Java API in order to store encrypted data
on a BlackBerry device? (Choose one.)
A. Code development keys
B. Code signing keys
C. Code runtime keys
D. Code encryption keys
E. Code storage keys
Answer: B

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NO.19 A developer is writing a game with custom graphics and animations that will need to fit on multiple
screen sizes for various BlackBerry devices. The developer needs to minimize the number of images
created for the game. Which API will support these requirements? (Choose one.)
A. SVG
B. Display
C. Transition
D. Multimedia
E. Game
Answer: A

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NO.20 The following application is set to auto-run at startup:
Which approach would most reliably solve the problem this application will encounter? (Choose one.)
A. It should callThread.sleep() for ten seconds before pushing the screen to verify that the
BlackBerry device has completed its boot up process
B. Threads should be moved to their own standalone class so that they do not cause a security exception
C. Theint values in the MenuItem constructor should equal the y MenuString length to leave enough room
for the string
D. It should use theApplicationManager.inStartup() before pushing the screen to verify that the BlackBerry
device has completed its boot up process
E. It should use theApplicationManager.inStartup() before pushing the screen to verify that the BlackBerry
device has completed its boot up process
F. It should use theApplicationManager.inStartup() before pushing the screen to verify that the BlackBerry
device has completed its boot up process
G. ThemakeMenu method of MainScreen must be overridden to use a menu
Answer: D,E,F

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