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2021 Sep 1Z0-869 answers

Q41. - (Topic 2) 

Given: 

10.

 public class ExampleMIDlet extends MIDlet { 

11.

 //... 

20.

 public boolean hasCompleted() { 

21.

 //... 

30.

 } 

31.

 public boolean isLowOnMemory() { 

32.

 //... 

40.

 } 

41.

 public void destroyApp(boolean arg) { 

42.

 if (X) throw new MIDletStateChangeException(); 

43.

 } 

44.

 //... 

50. } 

Which substitution for X conforms to the MIDP specification? 

A. !hasCompleted() 

B. !arg 

C. !arg || !hasCompleted() 

D. true 

E. arg && isLowOnMemory() 

F. isLowOnMemory() 

Answer: B 


Q42. - (Topic 3) 

Which two methods are available only within classes of the MIDP low-level UI API? (Choose two.) 

A. setFullScreenMode() 

B. hasRepeatEvents() 

C. setPreferredSize() 

D. notifyStateChanged() 

E. getLayout() 

Answer: A,B 


Q43. - (Topic 2) 

Given the JAD file: 

1.

 MIDlet-1: YourMIDlet, MyMIDlet.png, YourMIDlet 

2.

 MIDlet-2: MyMIDlet, MyMIDlet.png, MyMIDlet 

3.

 MIDlet-3: TheirMIDlet, MyMIDlet.png, TheirMIDlet 

4.

 MIDlet-Jar-Size: 46902 

5.

 MIDlet-Name: MyMIDlet 

6.

 MIDlet-Jar-URL: http://mywebserver.com/mymidlets/MyMIDlet.jar 

7.

 MIDlet-Vendor: MyCompany 

8.

 MIDlet-Version: 1.1 

Which two can be true for a JTWI-compliant device after installation of the MIDlet suite? (Choose two.) 

A. The device executes the MIDlet referred to by the MIDlet-2 attribute in the JAD file. 

B. The device executes the MIDlet referred to by the MIDlet-1 attribute in the JAD file. 

C. The device shows a menu to the user for selecting the MIDlet to execute. 

D. The device executes all three MIDlets in sequence starting from the first. 

Answer: B,C 


Q44. - (Topic 1) 

Given: 

21.

 TextField tf = new TextField("Memo", "", 50, TextField.ANY); 

22.

 DateField df = new DateField("Date", DateField.DATE_TIME); 

23.

 Form fm = new Form("Form demo"); 

24.

 Command cmCount = new Command("Word count", Command.ITEM, 1); 

25.

 Command cmExit = new Command("Exit", Command.EXIT, 1); 

26. 

27.

 tf.addCommand(cmCount); 

28.

 fm.append(df); 

29.

 fm.append(tf); 

30.

 fm.addCommand(cmExit); 

31.

 fm.setCommandListener(this); 

Which is true? 

A. An exception is thrown at runtime. 

B. The cmCount and cmExit commands is always available on fm, regardless of which Item is active. 

C. Compilation fails. 

D. The cmCount command is available only when tf is the active Item. 

E. The cmExit command is available only when df is the active Item. 

Answer: D 


Q45. - (Topic 2) 

What does the application level security ensure? 

A. controlled access to system resources 

B. no access to system resources 

C. restricted access to native application libraries 

D. unlimited access to native application libraries 

Answer: A 


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Up to the immediate present 1Z0-869 braindumps:

Q46. - (Topic 1) 

A suite is signed with a X.509 PKI certificate. The root certificate is not present in the device's keystore. What is the installation result? 

A. The JAD file is rejected. Installation fails. 

B. The JAD file is rejected. It installs in the untrusted domain. 

C. Authentication fails. It installs in the untrusted domain. 

D. Authentication fails. Installation fails. 

Answer: D 


Q47. 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: 


Q48. - (Topic 2) 

Given two options to synthesize tones: 

Manager.playTone(); 

And: 

5. //... 

11.

 Player p = Manager.createPlayer(Manager.TONE_DEVICE_LOCATOR); 

12.

 p.realize(); 

13.

 ToneControl c = (ToneControl)p.getControl("ToneControl"); 

14.

 c.setSequence(sequence); 

15.

 p.start(); 

Which is true? 

A. The second option lets developers set playback tempo. 

B. Both options have the same result. 

C. The second option lets developers set playback pitch. 

D. Manager.TONE_DEVICE_LOCATOR is not a valid field. 

Answer: A 


Q49. DRAG DROP - (Topic 1) 

Click the Task button. 

Place the appropriate platform label on the class name. If the class exists in both CLDC and J2SE, choose the "Exists in BOTH..." option, regardless of whether the package names are different. 

Answer: 


Q50. - (Topic 3) 

Which is true regarding CLDC? 

A. A CLDC implementation can provide features that are optional. 

B. A CLDC implementation CANNOT provide features that are optional. 

C. A CLDC implementation must provide at least one optional feature. 

D. A CLDC implementation generally defines a superset of J2SE technology. 

Answer: B