Last Updated: Aug 12, 2026
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| Section | Weight | Objectives |
|---|---|---|
| Networking & Communication | 15% | - Wireless Messaging API (WMA) 1.1 - Multimedia API (MMAPI) 1.1 - Generic Connection Framework (GCF) - HTTP, HTTPS, Socket connections |
| Persistence & Storage | 10% | - Record Management System (RMS) - Record stores and operations - Data sharing and access control |
| JTWI Overview and Wireless Application Basics | 10% | - Architecture of JTWI-compliant applications - Java Technology for Wireless Industry (JSR 185) |
| Security | 10% | - Permissions and protection domains - Secure network communication - CLDC and MIDP security model |
| MIDP User Interface | 15% | - Low-level UI and Canvas - Event handling and commands - MIDP Game API - High-level UI components |
| MIDP Application Model & Lifecycle | 15% | - Push Registry mechanism - MIDlet lifecycle and states - Application delivery and provisioning - JAD and JAR files structure |
| CLDC Configuration | 15% | - Connected Limited Device Configuration APIs - CLDC 1.0 and CLDC 1.1 features - Memory and resource constraints |
1. Which two errors are available in CLDC? (Choose two.)
A) java.lang.StackOverflowError
B) java.lang.UnknownError
C) java.lang.OutOfMemoryError
D) java.lang.VirtualMachineError
2. Given:
1 0. Player p = Manager.createPlayer(Manager.TONE_DEVICE_LOCATOR);
1 1. VolumeControl vc = p.getVolumeControl();
1 2. vc.setLevel(42);
1 3. vc.setMute(true);
1 4. System.out.println(vc.getLevel());
Which is printed to the console?
A) 42
B) null
C) 0
D) -1
3. Which two are true when deleting a record store? (Choose two.)
A) If the record store is open, an exception will be thrown.
B) The record store must be closed prior to calling deleteRecordStore().
C) The record store must be open prior to calling deleteRecordStore().
D) For any registered listener of the record store, recordDeleted() will be called.
4. Which two are true regarding record stores? (Choose two.)
A) MIDlets within the same suite CANNOT access the record stores of other MIDlets in the same suite.
B) MIDlets within the same suite can access the record stores of other MIDlets in the same suite.
C) Record stores can be locked.
D) All records within a record store have the same length.
E) When a MIDlet suite is removed, record store contents remain on the device.
F) The first created in a record store has a record ID of 1.
G) Record store names are case insensitive.
5. Given a MIDP 2.0 device supports alpha blending, a MIDlet needs to render semi- transparent images of size 10x10 pixels. However, these images need to be generated at runtime. That is, they CANNOT be loaded as PNGs. What is the correct way to create a
10x10, red, semi-transparent image, using only the MIDP 2.0 API?
A) use createRGBImage() to create an immutable Image from ARGB data with the desired values
B) use createImage() to create a mutable Image; first fill it with white pixels, then fill it with red pixels
C) This is not possible. An Image with semi-transparency CANNOT be created at runtime.
D) use createImage() to create a mutable Image, then fill it with red pixels
Solutions:
| Question # 1 Answer: C,D | Question # 2 Answer: A | Question # 3 Answer: A,B | Question # 4 Answer: B,F | Question # 5 Answer: A |
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