1Z0-869 by Oracle Valid Free Exam Practice Test

Question 1

Which method in javax.microedition.midlet.MIDlet is used to retrieve the attributes necessary to access a record store in a different MIDlet suite?

A. getSuiteProperty() B. getAppProperty() C. platformRequest() D. getProperty() E. checkPermission() F. getAttribute()

Correct Answer: B

Question 2

Given:
HttpConnection conn
(HttpConnection) Connector.open("http://internalsite:8080/");
and
MIDlet-Permission-Opt is set to javax.microedition.io.Connector.http in the JAD file.
What is the result?

A. The application will install and execute with explicit user interaction. B. The application will install and execute without explicit user interaction. C. The application will install, but the application will not execute. D. The application will not install in the untrusted domain.

Correct Answer: A

Question 3

Given:
A record store has three records: Record 1 contains Apple, Record 2 contains Mango, Record 3 contains Cherry, and the RecordComparator class:
1 . public class CompareTest implements RecordComparator {
2 . public int compare(byte[] rec1, byte[] rec2) {
3 . String str1 = new String(rec1), str2 = new String(rec2);
4 . int result = str2.compareTo(str1);
5 . if (result == 0)
6 . return RecordComparator.EQUIVALENT;
7 . else if (result < 0)
8 . return RecordComparator.PRECEDES;
9 . else
1 0. return RecordComparator.FOLLOWS;
1 1. }
1 2. }
What is the return order of the records for an enumerator using CompareTest?

A. Apple, Mango, Cherry B. Mango, Cherry, Apple C. Cherry, Apple, Mango D. Apple, Cherry, Mango E. Cherry, Mango, Apple F. Mango, Apple, Cherry

Correct Answer: B

Question 4

DRAG DROP
Click the Task button.
Place the correct class within the hierarchy to reflect the class inheritance structure for the MIDP 2.0 user interface API. Not all classes are shown.

Correct Answer:

Question 5

Which is true about CLDC support for accessing system property information?

A. CLDC supports a subset of java.util.Properties. B. Property information is available in CLDC using System.getProperty(). C. Full support for java.util.Properties is available within CLDC. D. CLDC supports a subset of java.util.Properties and also provides additional property information using System.getProperty().

Correct Answer: B

Question 6

Assume a particular JTWI phone supports server socket connections. A MIDlet running on the phone attempts to register a connection using:
PushRegistry.registerConnection(connection, midlet, filter); Assume connection, midlet, and filter are NOT null. The statement is executed and throws a ConnectionNotFoundException. What causes the exception?

A. The requested connection is already registered. B. The specified MIDlet does NOT exist. C. The phone does NOT support push connections using server sockets. D. The syntax of connection is invalid.

Correct Answer: C

Question 7

Given the MIDlet code:
3 . public void go() {
4 . try {
5 . doStuff();
6 . } catch(java.lang.IllegalAccessError e) {
7 . aForm.append("An Error");
8 . }
9 . }
Assuming the aForm variable on line 7 is a correctly initialized Form and set to the current display, what is the result?

A. The MIDlet fails at runtime due to a problem on line 6. B. Compilation fails due to a problem on line 7. C. Compilation fails due to a problem on line 6. D. An Error is printed to the display if an IllegalAccessError occurs. E. The MIDlet fails at runtime due to a problem on line 7.

Correct Answer: C

Question 8

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

Correct Answer: C

Question 9

DRAG DROP
Click the Task button. Place each player state next to its description.

Correct Answer:

Question 10

A MIDlet has entered the paused state. Which is a valid action to attempt to make it active?

A. The MIDlet cannot revert back to the active state. B. The MIDlet has to wait quietly to be rescheduled. C. The MIDlet calls its own startApp() method. D. The MIDlet calls resumeRequest() through a timer.

Correct Answer: D

Question 11

Click the Exhibit button.
Given a MIDlet suite with the JAD and the manifest files, what is the behavior of a JTWI- compliant device that tries to download the MIDlet suite?

A. The device does NOT install the JAD file. B. The device installs the JAD file, but does NOT install the JAR file. C. The device does NOT install the MIDlet suite because of an attribute mismatch. D. The device installs the MIDlet suite.

Correct Answer: D

Question 12

A JTWI application sends a text message using the code:
message.setPayloadText("hello world!");
conn.send(message);
What exception will this code throw if a timeout occurs while trying to send the message?

A. java.io.EOFException B. java.io.InterruptedIOException C. java.lang.SecurityException D. java.lang.NullPointerException

Correct Answer: B

Question 13

Which two are true regarding record stores? (Choose two.)

A. All records within a record store have the same length. B. Record stores can be locked. C. The first created in a record store has a record ID of 1. D. MIDlets within the same suite can access the record stores of other MIDlets in the same suite. E. MIDlets within the same suite CANNOT access the record stores of other MIDlets in the same suite. F. When a MIDlet suite is removed, record store contents remain on the device. G. Record store names are case insensitive.

Correct Answer: C,D

Question 14

What is TimeBase?

A. a top-level MIDP 2.0 interface B. an MMAPI class implementing the Control interface C. a MIDP 2.0 interface extending the Control interface D. a top-level MMAPI interface

Correct Answer: D

Question 15

Which two properties of a Player can be set programmatically after its creation? (Choose two.)

A. media content type B. media source C. size of data buffer D. loop count E. time base

Correct Answer: D,E

Oracle Java Mobile Edition 1 Mobile Application Developer Certified Professional - 1Z0-869 Exam Practice Test