Most up-to-date 1Z0-869: Exambible real testing engine from 121 to 130

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2016 Oct 1Z0-869 Study Guide Questions:

Q121. DRAG DROP – (Topic 3) 

Click the Task button. 

Place the connection strings on their corresponding connection interfaces. 

Answer: 

Q122. – (Topic 1) 

Given the MIDlet code: 

11.

 DatagramConnection dgc = (DatagramConnection)Connector.open("datagram://:444"); 

12.

 Datagram datagram = dgc.newDatagram(20); 

13.

 dgc.receive(datagram); 

14.

 byte[] data = datagram.getData(); 

15.

 String s = new String(data); 

16.

 list.append(s, null); 

17.

 System.out.println("Datagram received: " + s); 

Which two are true regarding the portability of the code between devices? (Choose two.) 

A. Installation will fail on devices that do not support datagrams. 

B. Datagrams may not be supported on all platforms. 

C. The code is portable because all the classes and interfaces used are defined in the CLDC. 

D. Port 444 may be restricted or ignored by some MIDP implementations. 

Answer: B,D 

37. – (Topic 1) 

Given: 

8.

 package javax.microedition.midlet; 

9.

 import javax.microedition.midlet.*; 

10.

 import javax.microedition.io.*; 

11.

 import java.io.*; 

12. 

13.

 public class Outlet extends MIDlet { 

14.

 public void startApp(){ } 

15.

 public void pauseApp(){ } 

16.

 public void destroyApp(boolean unconditional){ } 

17.

 } 

Which is true? 

A. The application will compile and will execute. 

B. Compilation fails because of an error in line 8. 

C. The application will compile and will NOT execute. 

D. The application will NOT compile. 

Answer: C 

Q123. – (Topic 2) 

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

A. time base 

B. loop count 

C. media content type 

D. media source 

E. size of data buffer 

Answer: A,B 

Topic 3, Volume C 

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Updated 1Z0-869 practice test:

Q124. – (Topic 1) 

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. 

Answer: C 

Q125. DRAG DROP – (Topic 2) 

Click the Task button. 

Given: 

9.

 Player p = Manager.createPlayer("http://webserver/music.mp3"); 

10.

 p.setLoopCount(5); 

11.

 p.start(); 

12.

 p.stop(); 

13.

 p.close(); 

What is the order of the states that the Player goes through? 

Answer: 

Q126. – (Topic 2) 

Given the MIDlet code: 

20.

 String arg = "telepathy:op=mind.read, target=James.Gosling"; 

21.

 Connection conn = Connector.open(arg); Assume telepathy is an unsupported protocol. Which is true? 

A. The user is presented with an alert. 

B. The system quietly ignores the request. 

C. An exception is thrown at runtime. 

D. Compilation fails. 

Answer: C 

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Validated 1Z0-869 :

Q127. DRAG DROP – (Topic 1) 

Click the Task button. Place the MIDP 2.0 classes and interfaces in the correct positions in the hierarchy. 

Answer: 

Q128. – (Topic 1) 

Given: 

a new record store rs, of type javax.microedition.rms.RecordStore containing zero records a method called addNewRecord that adds a record to rs 

And: 

21.

 addNewRecord("Amy"); 

22.

 addNewRecord("Bill"); 

23.

 addNewRecord("Candy"); 

24.

 addNewRecord("Doug"); 

25.

 rs.deleteRecord(1); 

26.

 rs.deleteRecord(3); 

27.

 addNewRecord("Ethan"); 

28.

 addNewRecord("Frank"); 

29.

 int nextRecNum = rs.getNextRecordID(); 

What is the value of nextRecNum? 

A. 6 

B. 7 

C. 4 

D. 5 

Answer: B 

Q129. – (Topic 1) 

Which method is initially called when the MIDlet starts in response to a push notification? 

A. PushRegistry.notifyIncomingConnection() 

B. MIDlet.startApp() 

C. MIDlet.notifyApp() 

D. PushRegistry.listConnections() 

E. MIDlet.pushApp() 

F. MIDlet.resumeRequest() 

Answer: B 

Q130. – (Topic 3) 

A mobile application developer is trying to increase the performance of a game using the MIDP Game API. Which two are legal, valid approaches that fulfill the developer's goal? (Choose two.) 

A. restrict the number of frames per Sprite to one 

B. base collision detection on rectangle boundaries 

C. always ensure that the view window is larger than the visible screen 

D. implement keyPressed(), keyReleased(), and keyRepeated() 

E. poll for key states only when necessary 

Answer: B,E 

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