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Oracle 1Z0-869 Exam Syllabus Topics:

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

1. Which four are absent from the CLDC virtual machine? (Choose four.)

A) thread groups and daemon threads
B) asynchronous exceptions
C) custom class loaders
D) object.finalize() method
E) multi-threading
F) class file verification
G) inner and anonymous classes

2. Which two are true about record store listeners? (Choose two.)

A) A record store can have only one registered listener.
B) Listeners are notified if a record store is deleted.
C) When a record store is closed, listeners are removed.
D) To listen for all events, three listeners must be registered.
E) A record store can have more than one registered listener.

3. Given:
MIDlet-Push-1: datagram://:444, com.fooworks.PushExample, *
MIDlet-Push-2: datagram://:555, com.fooworks.PushExample, *
are statically registered push connections and given:
1 1. protected void startApp() {
1 2. String[] connections = PushRegistry.listConnections(true);
1 3. if(connections.length == 0) {
1 4. connections = PushRegistry.listConnections(false);
1 5. for (int i=0; i < connections.length; i++) {
1 6. new DatagramHandler(connections[i]).start();
1 7. }
1 8. } else {
1 9. for (int i=0; i < connections.length; i++) {
2 0. new DatagramHandler(connections[i]).start();
2 1. }
2 2. }
2 3. }
Which two identify what will go wrong if the code is invoked by the Application Management Software in response to an inbound connection notification? (Choose two.)

A) Duplicate DatagramHandler objects are created if the MIDlet is paused and then resumed.
B) The first inbound datagram is handled, but all other datagrams are missed.
C) An IOException is thrown if there are no active connections.
D) The first inbound datagram is ignored, all subsequent datagrams are handled by DatagramHandler.
E) Datagrams for the active connection are handled, but any datagrams sent to the other port are missed.

4. wav is a content type supported on a device that executes:
1 0. Player p;
1 1. p = Manager.createPlayer("http://foobar.sun.com/sound.wav");
1 2. p.prefetch();
Which is true?

A) No exception is thrown at runtime. No sound is played.
B) sound.wav is played on the device.
C) The result is device-dependent.
D) An exception is generated at runtime.

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

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

Solutions: