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Oracle 1Z0-869 Exam Syllabus Topics:

SectionObjectives
Topic 1: MIDlet Development- User interface components and event handling
- MIDlet lifecycle
Topic 2: Packaging and Deployment- JAR/JAD packaging
- Deployment to mobile devices
Topic 3: Java ME Architecture and Fundamentals- CLDC (Connected Limited Device Configuration)
- Java ME platform architecture overview
- MIDP (Mobile Information Device Profile)
Topic 4: Data Storage and Persistence- Record Management System (RMS)
Topic 5: Networking and Communication- HTTP/HTTPS connections in Java ME
- Generic Connection Framework (GCF)
Topic 6: Security Model- Sandbox model and permissions
- Signed MIDlets and trust levels

Oracle Java Mobile Edition 1 Mobile Application Developer Certified Professional Sample Questions:

Which two are true regarding record stores? (Choose two.)

  • A. The first created in a record store has a record ID of 1.
  • B. When a MIDlet suite is removed, record store contents remain on the device.
  • C. All records within a record store have the same length.
  • D. Record store names are case insensitive.
  • E. MIDlets within the same suite can access the record stores of other MIDlets in the same suite.
  • F. MIDlets within the same suite CANNOT access the record stores of other MIDlets in the same suite.
  • G. Record stores can be locked.
Answer: A,E

A MIDlet needs to receive incoming socket push notifications. It requests only the permissions:
javax.microedition.io.PushRegistry javax.microedition.io.Connector.socket javax.microedition.io.Connector.serversocket Which is true?

  • A. When an incoming socket connection activates the MIDlet, the MIDlet will always be unable to retrieve that connection while starting up.
  • B. The MIDlet CANNOT receive incoming socket push notifications without the permission javax.microedition.io.Connector.socketreceiver.
  • C. When an incoming socket connection activates the MIDlet, the MIDlet may be unable to retrieve that connection while starting up.
  • D. When an incoming socket connection activates the MIDlet, the MIDlet can always retrieve that connection while starting up.
Answer: C

Click the Exhibit button.
What is visible on the display when this MIDlet is executed?

  • A. The screen continuously switches back and forth between black and white.
  • B. A white screen is shown momentarily, and then a black screen is shown.
  • C. A black screen is shown momentarily, and then a white screen is shown.
  • D. A java.lang.RuntimeException is thrown.
Answer: C

Which method is initially called when the MIDlet starts in response to a push notification?

  • A. MIDlet.notifyApp()
  • B. PushRegistry.notifyIncomingConnection()
  • C. MIDlet.startApp()
  • D. MIDlet.pushApp()
  • E. PushRegistry.listConnections()
  • F. MIDlet.resumeRequest()
Answer: C

Assuming an application descriptor contains: MIDlet-Data-Size: 4096 Which is true?

  • A. The device will use 4096 bytes to buffer data the application receives over the network.
  • B. The device will use 4096 bytes to buffer data the application sends over the network.
  • C. The device will permanently reserve 4096 bytes of RMS space for the application.
  • D. The device will permanently reserve 4096 bytes of heap space for the application.
Answer: C

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