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

1. Click the Exhibit button.
Given:
String cert = getAppProperty("MIDlet-Certificate-1-1");
What value is assigned to the cert variable when run on a MIDP 2.0 implementation?

A) The requested property value from the MANIFEST.MF file is assigned to cert.
B) The application will NOT install.
C) The requested property value from the JAD file is assigned to cert.
D) A runtime exception will occur.

2. Which two are true about sockets and datagrams? (Choose two.)

A) Both datagrams and sockets use streams as the basis for their communication.
B) Data sent over a TCP/IP socket is received in the same order that it was sent.
C) Datagrams are used to send packets of data over a SocketConnection.
D) Datagrams are guaranteed to reach their intended destination.
E) Closing a SocketConnection automatically closes any associated input or output streams.
F) A datagram is an independent, self-contained message sent over the network.

3. Which method is initially called when the MIDlet starts in response to a push notification?

A) PushRegistry.listConnections()
B) MIDlet.resumeRequest()
C) PushRegistry.notifyIncomingConnection()
D) MIDlet.pushApp()
E) MIDlet.startApp()
F) MIDlet.notifyApp()

4. A MIDlet suite has the application descriptor fragment:
MIDlet-1: E-mail, email.png, com.example.EmailMIDlet
The MIDlet suite has the necessary permissions to use the PushRegistry.
What line does the application descriptor need to register the MIDlet suite for socket push connections on port 79?

A) MIDlet-Push-1: socket://:79, EmailMIDlet, *
B) MIDlet-Push-1: socket://:79, E-mail, *
C) MIDlet-Push-1: socket://:79, MIDlet-1, *
D) MIDlet-Push-1: socket://:79, com.example.EmailMIDlet, *

5. A MIDlet suite running on a GSM phone successfully receives an SMS text message msg from another GSM phone. The suite is using a valid SMS MessageConnection object conn opened in server mode.
The suite tries to respond back using:
msg.setPayloadText("thank you!");
conn.send(msg);
Which is true?

A) The code can succeed because the connection object contains an address for sending a response.
B) The code always fails because the message object is missing an address for sending a response.
C) The code always fails because the connection object is missing an address for sending a response.
D) The code can succeed because the message object contains an address for sending a response.

Solutions: