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Oracle 1Z0-869 Exam Syllabus Topics:

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

1. A MIDlet makes its only attempt to register a push connection on a JTWI device using:
PushRegistry.registerConnection(
"datagram://:79", midlet, "10.0.0.???");
Which is true?

A) The MIDlet accepts datagram push connections on port 79 only from IP addresses in the range 10.0.0.100 to 10.0.0.255.
B) The MIDlet accepts datagram push connections on port 79 only from IP addresses in the range 10.0.0.0 to 10.0.0.255.
C) The MIDlet accepts datagram push connections on port 79 only from IP addresses in the range 10.0.0.100 to 10.0.0.255 and on any other port from IP addresses other than those in the range 10.0.0.100 to 10.0.0.255.
D) The call to registerConnection() causes an exception, because the
string 10.0.0.??? is an illegal argument.

2. Which two properties of a Player can be set programmatically after its creation? (Choose two.)

A) media source
B) time base
C) media content type
D) size of data buffer
E) loop count

3. Given:
1 0. MessageConnection connection;
1 1.
1 2. public void startApp() {
1 3. //...
1 4. connection
1 5. = (MessageConnection) Connector.open("sms://:6222");
1 6. connection.setMessageListener(this);
1 7. // ...
2 8. }
2 9.
3 0. public void notifyIncomingMessage(MessageConnection conn) {
3 1. //...
4 0. }
4 1.
4 2. public void run() {
4 3. Message msg = conn.receive();
4 4. //...
6 0. }
Which two security permissions must this application request to be able to receive messages? (Choose two.)

A) javax.wireless.messaging.sms.PushRegistry
B) javax.microedition.io.Connector.sms
C) javax.microedition.io.PushRegistry
D) javax.wireless.messaging.sms.listener
E) javax.microedition.io.Connector
F) javax.wireless.messaging.sms.receive

4. Which guarantees the application can be installed without push registration conflicts?

A) The MIDlet specifies multiple push registration strings in the JAD.
B) The MIDlet specifies the push registration in the JAD, but will register dynamically if there is a conflict.
C) The MIDlet tries to register the connection dynamically after installation.
D) It is NOT the responsibility of the MIDlet to resolve these conflicts. The installer does this automatically.

5. Given the MIDlet code:
7 . public void exitApp() {
8 . Runtime rt = Runtime.getRuntime();
9 . rt.exit(0);
1 0. }
What is the result of a call to exitApp()?

A) exitApp() completes execution successfully.
B) A SecurityException is thrown at line 9.
C) Compilation fails because of an error on line 8.
D) Compilation fails because of an error on line 9.

Solutions: