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試験番号：BCP-811問題集
試験科目：BlackBerry 「Developing Java Applications for the BlackBerry Platform」
問題と解答：全122問
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BCP-811試験の準備をするとき、がむしゃらにITに関連する知識を学ぶのは望ましくない勉強法です。実際は試験に合格するコツがあるのですよ。もし試験に準備するときに良いツールを使えば、多くの時間を節約することができるだけでなく、楽に試験に合格する保障を手にすることもできます。どんなツールかと聞きたいでしょう。それはもちろんIT-Passports.comのBCP-811問題集ですよ。
BlackBerryのBCP-811認定試験を除いて、最近非常に人気がある試験はまたBlackBerry、Cisco、IBM、SAPなどの様々な認定試験があります。しかし、もしBCP-811認証資格を取りたいなら、IT-Passports.comのBCP-811問題集はあなたを願望を達成させることができます。試験の受験に自信を持たないので諦めることをしないでください。IT-Passports.comの試験参考書を利用することを通して自分の目標を達成することができますから。BCP-811認証資格を入手してから、他のIT認定試験を受験することもできます。IT-Passports.comの試験問題集を手にすると、どのような試験でも問題ではありません。
21世紀の情報化時代の急流の到来につれて、人々はこの時代に適応できるようにいつも自分の知識を増加していてますが、まだずっと足りないです。IT業種について言えば、BlackBerryのBCP-811認定試験はIT業種で欠くことができない認証ですから、この試験に合格するのはとても必要です。この試験が難しいですから、試験に合格すれば国際的に認証され、受け入れられることができます。そうすると、美しい未来と高給をもらう仕事を持てるようになります。IT-Passports.comというサイトは世界で最も信頼できるIT認証トレーニング資料を持っていますから、IT-Passports.comを利用したらあなたがずっと期待している夢を実現することができるようになります。１００パーセントの合格率を保証しますから、BlackBerryのBCP-811認定試験を受ける受験生のあなたはまだ何を待っているのですか。速くIT-Passports.comというサイトをクリックしてください。
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NO.1 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
BlackBerry参考書 BCP-811認証試験 BCP-811過去問
NO.2 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
BlackBerry認定資格 BCP-811 BCP-811 BCP-811過去問 BCP-811認定試験 BCP-811認証試験
NO.3 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
BlackBerry BCP-811認定試験 BCP-811認定試験 BCP-811過去問
NO.4 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
BlackBerry BCP-811 BCP-811
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
BlackBerry BCP-811 BCP-811 BCP-811参考書
NO.6 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
BlackBerry認定資格 BCP-811参考書 BCP-811参考書
NO.7 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
BlackBerry BCP-811 BCP-811認定証 BCP-811 BCP-811過去問
NO.8 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
BlackBerry BCP-811練習問題 BCP-811 BCP-811 BCP-811
NO.9 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
BlackBerry認定資格 BCP-811 BCP-811認定資格 BCP-811 BCP-811過去問
NO.10 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
BlackBerry BCP-811 BCP-811
NO.11 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
BlackBerry問題集 BCP-811練習問題 BCP-811認定試験 BCP-811問題集 BCP-811
NO.12 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
BlackBerry認定資格 BCP-811認証試験 BCP-811 BCP-811
NO.13 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
BlackBerry問題集 BCP-811 BCP-811過去問 BCP-811
NO.14 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
BlackBerry問題集 BCP-811過去問 BCP-811 BCP-811
NO.15 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
BlackBerry BCP-811 BCP-811 BCP-811認証試験 BCP-811認定資格 BCP-811
NO.16 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
BlackBerry過去問 BCP-811参考書 BCP-811 BCP-811 BCP-811
NO.17 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
BlackBerry BCP-811認定試験 BCP-811認定資格 BCP-811認証試験 BCP-811
NO.18 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
BlackBerry BCP-811認定証 BCP-811認定証
NO.19 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
BlackBerry BCP-811練習問題 BCP-811 BCP-811 BCP-811
NO.20 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
BlackBerry認定証 BCP-811認定資格 BCP-811 BCP-811
今の人材が多い社会中に多くの業界は人材不足でたとえばIT業界はかなり技術的な人材が不足で、BlackBerryのBCP-811認定試験はIT技術の認証試験の1つで、IT-Passports.comはBlackBerryのBCP-811認証試験に関するの特別な技術を持ってサイトでございます。
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