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Oracle 1Z0-869 Exam Syllabus Topics:
| Section | Objectives |
|---|---|
| Topic 1: MIDlet Development | - User interface components and event handling - MIDlet lifecycle |
| Topic 2: Java ME Architecture and Fundamentals | - Java ME platform architecture overview - MIDP (Mobile Information Device Profile) - CLDC (Connected Limited Device Configuration) |
| Topic 3: Packaging and Deployment | - JAR/JAD packaging - Deployment to mobile devices |
| Topic 4: Data Storage and Persistence | - Record Management System (RMS) |
| Topic 5: Networking and Communication | - Generic Connection Framework (GCF) - HTTP/HTTPS connections in Java ME |
| Topic 6: Security Model | - Signed MIDlets and trust levels - Sandbox model and permissions |
Oracle Java Mobile Edition 1 Mobile Application Developer Certified Professional Sample Questions:
Assume a device supports datagrams and a MIDlet has permission to use datagram connections. Which two are true? (Choose two.)
- A. Push registration can fail if the allowed sender filter specified is *, which poses a security risk to the device.
- B. Push registration can fail if there is a push registration conflict, but the user must be prompted as to how to resolve the problem.
- C. Push registration can fail because the device does NOT support the use of datagrams by the PushRegistry.
- D. Push registration can fail if another application has already reserved the connection on the device.
Correct Answer: C,D 🗳️
Which three are defined as user interaction permission modes? (Choose three.)
- A. application
- B. global
- C. session
- D. blanket
- E. oneshot
Correct Answer: C,D,E 🗳️
A MIDlet that is to be installed on a phone has different values for the MIDlet-Name property between the JAD file and the manifest in the JAR file. Which is true?
- A. The value in the JAD file overrides the value in the manifest.
- B. A dialog is presented to resolve the conflict.
- C. The value in the manifest overrides the value in the JAD file.
- D. The MIDlet installation process will be aborted.
Correct Answer: D 🗳️
A JTWI application sends a text message using the code:
message.setPayloadText("hello world!");
conn.send(message);
What exception will this code throw if a timeout occurs while trying to send the message?
- A. java.io.EOFException
- B. java.lang.SecurityException
- C. java.io.InterruptedIOException
- D. java.lang.NullPointerException
Correct Answer: C 🗳️
Which guarantees the application can be installed without push registration conflicts?
- A. It is NOT the responsibility of the MIDlet to resolve these conflicts. The installer does this automatically.
- B. The MIDlet specifies multiple push registration strings in the JAD.
- C. The MIDlet specifies the push registration in the JAD, but will register dynamically if there is a conflict.
- D. The MIDlet tries to register the connection dynamically after installation.
Correct Answer: D 🗳️
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