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Oracle 1Z0-869 Exam Syllabus Topics:

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

1. Given the MIDlet code:
1 1. 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) The code is portable because all the classes and interfaces used are defined in the CLDC.
B) Port 444 may be restricted or ignored by some MIDP implementations.
C) Installation will fail on devices that do not support datagrams.
D) Datagrams may not be supported on all platforms.

2. DRAG DROP
Click the Task button.
Given:
9 . Player p = Manager.createPlayer("http://webserver/music.mp3");
1 0. p.setLoopCount(5);
1 1. p.start();
1 2. p.stop();
1 3. p.close();
What is the order of the states that the Player goes through?

3. 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 another application has already reserved the connection on the device.
B) Push registration can fail if the allowed sender filter specified is *, which poses a security risk to the device.
C) Push registration can fail because the device does NOT support the use of datagrams by the PushRegistry.
D) Push registration can fail if there is a push registration conflict, but the user must be prompted as to how to resolve the problem.

4. What are two benefits of the PushRegistry? (Choose two.)

A) It provides a way for the AMS to automatically invoke a MIDlet at a specified time if it is not already running.
B) It provides a way for an incoming connection to invoke a MIDlet that can handle the content sent by the connection.
C) It provides a way to restrict HTTP connections to well-known network addresses.
D) It provides a way for two MIDlet suites running on the same device to discover and communicate with each other in a secure manner.

5. Which two are true about the MIDlet suite discovery process? (Choose two.)

A) The MIDlet suite discovery process always begins with the download of an Application Descriptor file with a .jad extension.
B) The discovery of a MIDlet suite is the process by which a user installs a MIDlet suite on a JTWI-compliant device.
C) The discovery of a MIDlet suite is the process by which a JTWI-compliant device installs a MIDlet suite using a search engine.
D) The Application Descriptor is used by the Application Management Software to determine if a MIDlet suite can be successfully installed and executed on the device.
E) The discovery of a MIDlet suite is the process by which a user locates a MIDlet suite using a JTWI-compliant device.

Solutions: