Oracle 1Z0-869 Online Practice Questions and Exam Preparation

Oracle 1Z0-869 Online Questions & Answers

• Question 231:

  Which two methods are available only within classes of the MIDP low-level UI API? (Choose two.)

  A. setFullScreenMode()
  B. hasRepeatEvents()
  C. setPreferredSize()
  D. notifyStateChanged()
  E. getLayout()
  A. setFullScreenMode()
  B. hasRepeatEvents()

• Question 232:

  Given:

  rs is an object of type javax.microedition.rms.RecordStore.

  baos is an object of type java.io.DataOutputStream.

  recId is an int.

  Which adds a record to rs?

  A. byte [] b = baos.toByteArray(); try { recId = rs.addRecord(b, 0, b.length); } catch (Exception e) { }
  B. byte [] b = baos.toByteArray(); try { recId = rs.add(b, 0, b.length); } catch (Exception e) { }
  C. byte [] b = baos.write(); try { recId = rs.addRecord(b, 0, b.length); } catch (Exception e) { }
  D. byte [] b = baos.writeByteArray(); try { recId = rs.addRecord(b, 0, b.length); } catch (Exception e) { }
  E. byte [] b = baos.writeByteArray(); try { recId = rs.add(b, 0, b.length); } catch (Exception e) { }
  F. byte [] b = baos.write(); try { recId = rs.add(b, 0, b.length); } catch (Exception e) { }
  A. byte [] b = baos.toByteArray(); try { recId = rs.addRecord(b, 0, b.length); } catch (Exception e) { }

• Question 233:

  Given the MIDlet code:

  11.

  DatagramConnection dgc =

  (DatagramConnection)Connector.open("datagram://:444");

  12.

  Datagram datagram = dgc.newDatagram(20);

  13.

  dgc.receive(datagram);

  14.

  byte[] data = datagram.getData();

  15.

  String s = new String(data);

  16.

  list.append(s, null);

  17.

  System.out.println("Datagram received: " + s);

  Which two are true regarding the portability of the code between devices? (Choose two.)

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

• Question 234:

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

  A. global
  B. session
  C. oneshot
  D. application
  E. blanket
  B. session
  C. oneshot
  E. blanket

• Question 235:

  Which two are true about the MIDP user interface API? (Choose two.)

  A. A single Command can have both a long and a short label.
  B. There can be multiple Displayable objects shown on the display at the same time.
  C. All UI events are sent to the application asynchronously.
  D. There can be only one Display object per MIDlet.
  E. Form is a multicast event source for CommandListener objects.
  F. Canvas is a subclass of Screen.
  A. A single Command can have both a long and a short label.
  D. There can be only one Display object per MIDlet.

• Question 236:

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

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

• Question 237:

  Assuming an application descriptor contains:

  MIDlet-Data-Size: 4096

  Which is true?

  A. The device will use 4096 bytes to buffer data the application receives over the network.
  B. The device will permanently reserve 4096 bytes of heap space for the application.
  C. The device will use 4096 bytes to buffer data the application sends over the network.
  D. The device will permanently reserve 4096 bytes of RMS space for the application.
  D. The device will permanently reserve 4096 bytes of RMS space for the application.

• Question 238:

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

  A. oneshot
  B. global
  C. application
  D. session
  E. blanket
  A. oneshot
  D. session
  E. blanket

• Question 239:

  Which is false about untrusted MIDlet suites?

  A. Untrusted MIDlet suites may access protected APIs or functions if given explicit user permission.
  B. JTWI devices must treat all MIDP 1.0 suites as untrusted.
  C. JTWI devices must treat all MIDP 2.0 suites as trusted.
  D. An untrusted MIDlet suite does not request permissions explicitly in the JAR manifest or the application descriptor.
  C. JTWI devices must treat all MIDP 2.0 suites as trusted.

• Question 240:

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

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