Oracle Oracle Certifications 1Z0-869 Questions & Answers

• Question 61:

  Given:

  21.

  MessageConnection mc;

  22.

  mc = (MessageConnection) Connector.open("sms://:6222");

  23.

  mc.setMessageListener(this);

  24.

  reader = new MsgReader();

  25.

  new Thread(reader).start();

  26.

  //...

  35.

  public void notifyIncomingMessage(MessageConnection mc2) {

  36.

  //...

  40.

  }

  41.

  //...

  50.

  class MsgReader implements Runnable {

  51.

  //...

  55. }

  Which two are true? (Choose two.)

  A. This MIDlet uses asynchronous WMA message handling.

  B. This MIDlet must contain a call to PushRegister.registerConnection().

  C. This MIDlet typically includes a method call such as: mc.receive().

  D. This MIDlet must have a MIDlet-Push- entry in its JAD file.

  E. This MIDlet uses synchronous WMA message handling.

  Correct Answer: AC

• Question 62:

  Which two can a developer use to create a Timer that will go off in 5 seconds, repeating every 3 seconds? (Choose two.)

  A. timer.schedule(timerTask, new Date().getTime() + 5000, 3000);

  B. timer.scheduleAtFixedRate(timerTask, 5, 3);

  C. timer.schedule(timerTask, 5000, 3000);

  D. timer.schedule(timerTask, 5, 3);

  E. timer.scheduleAtFixedRate(timerTask, 5000, 3000);

  Correct Answer: CE

• Question 63:

  Which is true about PushRegistry.registerAlarm()?

  A. PushRegistry.registerAlarm() works independently of the network protocols available for push connections.

  B. PushRegistry.registerAlarm() supports several outstanding activation times per MIDlet.

  C. JTWI devices may choose NOT to implement PushRegistry.registerAlarm().

  D. PushRegistry.registerAlarm() is overloaded to play audio file arguments.

  Correct Answer: A

• Question 64:

  Given:

  A record store has three records: Record 1 contains Apple, Record 2 contains Mango, Record 3 contains Cherry, and the RecordComparator class:

  1.

  public class CompareTest implements RecordComparator {

  2.

  public int compare(byte[] rec1, byte[] rec2) {

  3.

  String str1 = new String(rec1), str2 = new String(rec2);

  4.

  int result = str2.compareTo(str1);

  5.

  if (result == 0)

  6.

  return RecordComparator.EQUIVALENT;

  7.

  else if (result < 0)

  8.

  return RecordComparator.PRECEDES;

  9.

  else

  10.

  return RecordComparator.FOLLOWS;

  11.

  }

  12.

  }

  What is the return order of the records for an enumerator using CompareTest?

  A. Apple, Mango, Cherry

  B. Mango, Cherry, Apple

  C. Mango, Apple, Cherry

  D. Cherry, Mango, Apple

  E. Apple, Cherry, Mango

  F. Cherry, Apple, Mango

  Correct Answer: B

• Question 65:

  Which three are defined as user interaction permission modes? (Choose three.)

  A. oneshot

  B. global

  C. application

  D. session

  E. blanket

  Correct Answer: ADE

• Question 66:

  Which two are true regarding a device that implements JTWI? (Choose two.)

  A. The device must implement the highest version of the API as identified by the JTWI specification.

  B. The device is NOT required to implement all of the MIDP 2.0 API as identified by the MIDP 2.0 specification.

  C. The device must implement at least the lowest version of the API as identified by the JTWI specification.

  D. The device may implement a higher version of the API as identified by the JTWI specification.

  Correct Answer: CD

• Question 67:

  Which is a method of ToneControl?

  A. setSequence()

  B. setLevel()

  C. startPlayback()

  D. playTone()

  Correct Answer: A

• Question 68:

  Which three are defined as user interaction permission modes? (Choose three.)

  A. global

  B. session

  C. oneshot

  D. application

  E. blanket

  Correct Answer: BCE

• Question 69:

  Which is true about WMA's support for Cell Broadcast Service (CBS) messaging?

  A. CBS uses encoding schemes different from SMS.

  B. A subscriber can choose topics on which to receive messages.

  C. A base station can choose to send CBS messages to specific mobile stations.

  D. The WMA is used to send and receive CBS messages.

  Correct Answer: B

• Question 70:

  Which class is available for use in trusted and untrusted domains?

  A. javax.microedition.io.CommConnection

  B. javax.microedition.io.Datagram

  C. javax.microedition.io.SocketConnection

  D. javax.microedition.io.HttpsConnection

  Correct Answer: D