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Oracle 1Z0-869 Exam Syllabus Topics:
| Section | Objectives |
|---|---|
| Security Model | - Signed MIDlets and trust levels - Sandbox model and permissions |
| MIDlet Development | - User interface components and event handling - MIDlet lifecycle |
| Data Storage and Persistence | - Record Management System (RMS) |
| Networking and Communication | - HTTP/HTTPS connections in Java ME - Generic Connection Framework (GCF) |
| Java ME Architecture and Fundamentals | - MIDP (Mobile Information Device Profile) - Java ME platform architecture overview - CLDC (Connected Limited Device Configuration) |
| Packaging and Deployment | - Deployment to mobile devices - JAR/JAD packaging |
Oracle Java Mobile Edition 1 Mobile Application Developer Certified Professional Sample Questions:
1. DRAG DROP
Click the Task button.
Place each class on its corresponding specification.
2. Given:
1 0. Player p = Manager.createPlayer(Manager.TONE_DEVICE_LOCATOR);
1 1. VolumeControl vc = p.getVolumeControl();
1 2. vc.setLevel(42);
1 3. vc.setMute(true);
1 4. System.out.println(vc.getLevel());
Which is printed to the console?
A) -1
B) 42
C) 0
D) null
3. Given the MIDlet code:
11. DatagramConnection dgc
(DatagramConnection)Connector.open("datagram://:444");
1 2. Datagram datagram = dgc.newDatagram(20);
1 3. dgc.receive(datagram);
1 4. byte[] data = datagram.getData();
1 5. String s = new String(data);
1 6. list.append(s, null);
1 7. System.out.println("Datagram received: " + s);
Which two are true regarding the portability of the code between devices? (Choose two.)
A) Port 444 may be restricted or ignored by some MIDP implementations.
B) Installation will fail on devices that do not support datagrams.
C) Datagrams may not be supported on all platforms.
D) The code is portable because all the classes and interfaces used are defined in the CLDC.
4. Which is true regarding access of the manifest file in a MIDlet suite's JAR file?
A) The manifest file can be accessed only by using MIDlet.getAppProperty().
B) The manifest file is hidden from MIDlets and CANNOT be accessed.
C) The manifest file can be accessed by any class using Class.getResourceAsStream().
D) The manifest file can be accessed by only one authorized MIDlet in every suite.
5. What is true when an enumeration applies both a RecordFilter class and
RecordComparator class on a record store?
A) An enumeration CANNOT apply both a RecordFilter and RecordComparator.
B) All records will always be available as part of the enumeration result set.
C) The records that match the search criteria in RecordComparator will be returned using the ordering defined by RecordFilter.
D) The return order of the result set is undefined.
E) The records that match the search criteria in RecordFilter will be returned using the ordering defined by RecordComparator.
Solutions:
| Question # 1 Answer: Only visible for members | Question # 2 Answer: B | Question # 3 Answer: A,C | Question # 4 Answer: C | Question # 5 Answer: E |






