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Oracle Java Mobile Edition 1 Mobile Application Developer Certified Professional Sample Questions:
1. Given that rs is an object of type javax.microedition.rms.RecordStore and that record 1 exists in rs, and
2 1. String one = "short String";
2 2. String two = "a much longer String";
2 3. byte [] small = one.getBytes();
2 4. byte [] big = two.getBytes();
2 5. rs.setRecord(1, big, 0, big.length);
2 6. rs.setRecord(1, small, 0, small.length);
What is the result?
A) An exception is thrown at runtime.
B) Record 1 contains "short String."
C) Record 1 contains "short Stringr String."
D) Record 1 contains "a much longer String."
E) Compilation fails.
2. Given:
a JAR containing a MIDlet named TesterMIDlet
a JAD with this content:
CertificationExam: Sun Certified Mobile Application DeveloperMIDlet-1: TesterMIDlet, , certification.TesterMIDlet MIDlet-Jar-Size: 2038 MIDlet-Jar-URL: Certification.jar MIDlet-Name: Certification MIDlet-Vendor: A Testing Company MIDlet-Version: 1.0 MicroEdition-Configuration: CLDC-1.0
MicroEdition-Profile: MIDP-2.0
This MIDlet needs to get the property with the key CertificationExam defined in the JAD.
This needs to be assigned to a String ExamName from within the MIDlet.startApp() method.
What is the correct way to accomplish this?
A) String ExamName = System.getProperty("MIDlet-CertificationExam");
B) String ExamName = this.getAppProperty("MIDlet-CertificationExam");
C) String ExamName = System.getProperty("CertificationExam");
D) String ExamName = this.getAppProperty("CertificationExam");
3. Which two are true regarding a device that implements JTWI? (Choose two.)
A) The device is NOT required to implement all of the MIDP 2.0 API as identified by the MIDP 2.0 specification.
B) The device must implement at least the lowest version of the API as identified by the JTWI specification.
C) The device may implement a higher version of the API as identified by the JTWI specification.
D) The device must implement the highest version of the API as identified by the JTWI specification.
4. What is guaranteed by the class file verifier?
A) It checks that a given program is a valid Java application.
B) It checks for attempted native library access.
C) It checks for external resource access.
D) It checks for attempted network access.
5. 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) The payload for an SMS message can use the BinaryMessage interface.
C) 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.
D) The payload for an SMS message segment CANNOT exceed 140 bytes.
E) Multiple messages sent from point A to point B are NOT guaranteed to be delivered in the order in which they were sent.
Solutions:
Question # 1 Answer: B | Question # 2 Answer: D | Question # 3 Answer: B,C | Question # 4 Answer: A | Question # 5 Answer: B,E |