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Oracle 1Z0-869 Exam Syllabus Topics:
| Section | Weight | Objectives |
|---|---|---|
| Networking & Communication | 15% | - HTTP, HTTPS, Socket connections - Generic Connection Framework (GCF) - Wireless Messaging API (WMA) 1.1 - Multimedia API (MMAPI) 1.1 |
| MIDP User Interface | 15% | - High-level UI components - Event handling and commands - MIDP Game API - Low-level UI and Canvas |
| Persistence & Storage | 10% | - Data sharing and access control - Record stores and operations - Record Management System (RMS) |
| Security | 10% | - Permissions and protection domains - Secure network communication - CLDC and MIDP security model |
| JTWI Overview and Wireless Application Basics | 10% | - Java Technology for Wireless Industry (JSR 185) - Architecture of JTWI-compliant applications |
| CLDC Configuration | 15% | - Memory and resource constraints - CLDC 1.0 and CLDC 1.1 features - Connected Limited Device Configuration APIs |
| MIDP Application Model & Lifecycle | 15% | - MIDlet lifecycle and states - Push Registry mechanism - JAD and JAR files structure - Application delivery and provisioning |
Oracle Java Mobile Edition 1 Mobile Application Developer Certified Professional Sample Questions:
1. Given
1 0. // ...
2 0. VolumeControl vc;
2 1. vc = (VolumeControl) player.getControl("VolumeControl");
2 2. vc.setLevel(4);
2 3. // ...
Which is true about the volume of audio playback from player when the code is executed?
A) The volume of the audio is up to the MIDP device.
B) The volume of the audio is approximately 0.4 dB.
C) The volume of the audio must be the same on all MIDP devices.
D) The volume of the audio is exactly 40 dB.
2. Given the MIDlet code:
3 . public void go() {
4 . try {
5 . doStuff();
6 . } catch(java.lang.IllegalAccessError e) {
7 . aForm.append("An Error");
8 . }
9 . }
Assuming the aForm variable on line 7 is a correctly initialized Form and set to the current display, what is the result?
A) The MIDlet fails at runtime due to a problem on line 6.
B) An Error is printed to the display if an IllegalAccessError occurs.
C) Compilation fails due to a problem on line 7.
D) The MIDlet fails at runtime due to a problem on line 7.
E) Compilation fails due to a problem on line 6.
3. Which two are true? (Choose two.)
A) GameCanvas provides the ability to get the states of the physical keys of the device.
B) GameCanvas extends Canvas and is NOT abstract.
C) GameCanvas provides an off-screen buffer.
D) GameCanvas can render only Sprite and Layer objects.
4. Which two are true about record stores? (Choose two.)
A) For a given record store, multiple comparators can exist.
B) A record store's authorization mode can be set only when the record store is created.
C) The RecordStore class provides a method that returns the ID of the last record modified.
D) The RecordStore class provides a method that returns a list of record stores in the MIDlet suite.
E) For a given enumerator, multiple filters can exist.
5. Which two are true? (Choose two.)
A) paint() is never called for GameCanvas subclasses.
B) Synchronous painting to the device display is possible with GameCanvas.
C) GameCanvas always needs a separate thread to draw anything on the screen.
D) Canvas.serviceRepaints() and Canvas.callSerially() can be used to create a constant frame-rate animation loop.
Solutions:
| Question # 1 Answer: A | Question # 2 Answer: E | Question # 3 Answer: A,C | Question # 4 Answer: A,D | Question # 5 Answer: B,D |





