Which statement is true about TiledLayer and Sprite objects maintained by a LayerManager object?
A. Either Sprite or TiledLayer objects may be inserted at a unique position in the LayerManager.
B. TiledLayer objects are always added as the background layer.
C. Once either Sprite or TiledLayer objects are added, the order can be changed only by creating and adding to a new LayerManager.
D. Sprite objects are always added as the background layer.
Which two are true about JTWI devices using SMS? (Choose two.)
A. Java applications are restricted to using port numbers between 2000 and 9207.
B. Multiple messages sent from point A to point B are NOT guaranteed to be delivered in the order in which they were sent.
C. The payload for an SMS message segment CANNOT exceed 140 bytes.
D. The payload for an SMS message can use the BinaryMessage interface.
E. A message which is too big to be sent in a single segment is NOT guaranteed to have its segments arrive at the application in the order in which they were sent.
A game running on a J2ME device supporting MMAPI needs to play tones in the background of the game. It intermittently needs to play sounds of explosions.
The code has created two Player objects: one for tones and one for WAV audio.
How does the developer know if both audio streams can be heard simultaneously?
A. The developer can query the system using System.getProperty("supports.mixing");.
B. Playing audio streams simultaneously is only a request. The device determines whether to do so.
C. Playing audio streams simultaneously is NOT possible with any MMAPI implementation.
D. The developer knows playing audio streams simultaneously is supported because two Player objects have been created.
Which two clarifications does the JTWI specification make regarding how devices implement the Mobile Media API? (Choose two.)
A. A JTWI device must support HTTP for media file download of all supported media formats.
B. A JTWI device must support MIDI file playback.
C. A JTWI device must support WAV file playback.
D. A JTWI device must support MP3 file playback.
E. A JTWI device must support Real Time Streaming Protocol (RTSP) for media file download of all supported media formats.
During a MIDlet suite installation, a JTWI-compliant device performs the following actions: downloads and installs the JAD file downloads the JAR file fails to install the MIDlet suite What is the correct behavior?
A. The device must save the JAD file for future downloads of the same MIDlet suite.
B. The device must save the JAD and the JAR file for future upgrading.
C. The device must free the space allocated for that MIDlet suite.
D. The device must log the failure in persistent storage.
Which two are true about deleting a record store? (Choose two.)
A. Registered listeners will be notified when their record store is deleted.
B. Permission to delete a record store is independent of its authorization mode.
C. A record store can be deleted by any MIDlet that has access to it.
D. A record store can always be deleted if it is NOT open to any MIDlet in its suite.
E. Record stores accessible across MIDlet suites can never be deleted.
F. Any attempt to delete a record store can throw an exception that must be caught.
Given:
39.
Image image = Image.createImage(20, 20);
40.
Graphics g = image.getGraphics();
41.
g.setColor(0xFF0000); //RED
42.
g.fillRect(0, 0,
43.
20, 20);
44.
Alert alert= new Alert("WARNING!");
45.
alert.setImage(image);
46.
g.setColor(0x000000); //BLACK
47.
g.fillRect(0, 0,
48.
20, 20);
What is the result when the Alert is shown?
A. A runtime exception is thrown.
B. A red square is shown on the Alert.
C. Either a red square or a black square is shown depending on the implementation.
D. A black square is shown on the Alert.
Given:
10. //...
20.
int[] foo = new int[10000];
21.
foo = null;
22.
System.gc();
23.
//...
Which is true once the program execution reaches line 23?
A. The garbage collector suspends the program until more memory becomes available.
B. The garbage collector CANNOT reclaim the memory allocated to foo because the reference is nulled out.
C. The garbage collector is triggered and memory is guaranteed to be reclaimed.
D. The garbage collector is triggered but there are no guarantees that any memory has been reclaimed.
Given a MIDlet that specifies a push registration in the JAD file as:
MIDlet-Push-1: socket://:79, com.sun.example.SampleChat, *
What is the result when the MIDlet is installed onto a device where another MIDlet has already registered the exact same push connection in the PushRegistry?
A. The connection can only apply to the currently running MIDlet.
B. The MIDlet installs and overwrites any existing push registrations.
C. The MIDlet installation is aborted and the user is notified of the problem.
D. The MIDlet installs, but the connection CANNOT be used.
E. The MIDlet installs, but the MIDlet must register the connection dynamically.
Which is true about the process of updating a MIDlet suite in a JTWI-compliant device?
A. An unsigned MIDlet suite must NOT be allowed to update a signed MIDlet suite.
B. A MIDlet suite CANNOT be updated with the same MIDlet suite from a different URL.
C. The RMS record stores of the updated MIDlet suite are always lost.
D. A MIDlet suite CANNOT be updated with another MIDlet suite that has a lower value for the MIDlet-Version attribute.
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