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Oracle 1Z0-869 real answers - Java Mobile Edition 1 Mobile Application Developer Certified Professional Exam

1Z0-869
  • Exam Code: 1Z0-869
  • Exam Name: Java Mobile Edition 1 Mobile Application Developer Certified Professional Exam
  • Updated: Jul 26, 2026
  • Q & A: 340 Questions and Answers
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Oracle 1Z0-869 Exam Syllabus Topics:

SectionWeightObjectives
CLDC Configuration15%- Connected Limited Device Configuration APIs
- CLDC 1.0 and CLDC 1.1 features
- Memory and resource constraints
Networking & Communication15%- Wireless Messaging API (WMA) 1.1
- Multimedia API (MMAPI) 1.1
- Generic Connection Framework (GCF)
- HTTP, HTTPS, Socket connections
MIDP Application Model & Lifecycle15%- Push Registry mechanism
- JAD and JAR files structure
- MIDlet lifecycle and states
- Application delivery and provisioning
Security10%- CLDC and MIDP security model
- Permissions and protection domains
- Secure network communication
Persistence & Storage10%- Record Management System (RMS)
- Data sharing and access control
- Record stores and operations
MIDP User Interface15%- Low-level UI and Canvas
- MIDP Game API
- High-level UI components
- Event handling and commands
JTWI Overview and Wireless Application Basics10%- Architecture of JTWI-compliant applications
- Java Technology for Wireless Industry (JSR 185)

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

1. A MIDlet suite is signed using X.509 PKI. Which encoding format must be used for the certificate entries in the JAD file?

A) base64
B) binary
C) yEnc
D) none


2. A MIDlet that is to be installed on a phone has different values for the MIDlet-Name property between the JAD file and the manifest in the JAR file. Which is true?

A) The value in the JAD file overrides the value in the manifest.
B) The value in the manifest overrides the value in the JAD file.
C) A dialog is presented to resolve the conflict.
D) The MIDlet installation process will be aborted.


3. Given:
1 0. public class ExampleMIDlet extends MIDlet {
1 1. //...
2 0. public boolean hasCompleted() {
2 1. //...
3 0. }
3 1. public boolean isLowOnMemory() {
3 2. //...
4 0. }
4 1. public void destroyApp(boolean arg) {
4 2. if (X) throw new MIDletStateChangeException();
4 3. }
4 4. //...
5 0. }
Which substitution for X conforms to the MIDP specification?

A) !arg
B) arg && isLowOnMemory()
C) true
D) !arg || !hasCompleted()
E) isLowOnMemory()
F) !hasCompleted()


4. Which three dimensions of a standard-size application does the JTWI 1.0 specification define? (Choose three.)

A) JAR size
B) JAD size
C) screen size
D) RMS data size
E) heap size


5. What is true when an enumeration applies both a RecordFilter class and
RecordComparator class on a record store?

A) The records that match the search criteria in RecordFilter will be returned using the ordering defined by RecordComparator.
B) The return order of the result set is undefined.
C) An enumeration CANNOT apply both a RecordFilter and RecordComparator.
D) All records will always be available as part of the enumeration result set.
E) The records that match the search criteria in RecordComparator will be returned using the ordering defined by RecordFilter.


Solutions:

Question # 1
Answer: A
Question # 2
Answer: D
Question # 3
Answer: A
Question # 4
Answer: A,B,D
Question # 5
Answer: A

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