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Q111. - (Topic 2) 

Which three functions are performed during the preverification process? (Choose three.) 

A. augment the StackMap 

B. remove certain bytecodes 

C. data type checking 

D. compress the class file 

E. obfuscate the application 

Answer: A,B,C 


Q112. - (Topic 1) 

Which two are true? (Choose two.) 

A. GameCanvas provides an off-screen buffer. 

B. GameCanvas extends Canvas and is NOT abstract. 

C. GameCanvas provides the ability to get the states of the physical keys of the device. 

D. GameCanvas can render only Sprite and Layer objects. 

Answer: A,C 


Q113. - (Topic 1) 

Which two are true about JTWI devices using SMS? (Choose two.) 

A. The payload for an SMS message can use the BinaryMessage interface. 

B. 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. 

C. Multiple messages sent from point A to point B are NOT guaranteed to be delivered in the order in which they were sent. 

D. Java applications are restricted to using port numbers between 2000 and 9207. 

E. The payload for an SMS message segment CANNOT exceed 140 bytes. 

Answer: A,C 


Q114. - (Topic 2) 

A MIDP 2.0 developer is building a game using the MIDP game API that requires user control over the direction of a Sprite within a GameCanvas. The developer wants to keep performance high and reduce memory use. Which two fulfill the goals? (Choose two.) 

A. in the GameCanvas object, use actual key codes rather than mapped game action constants 

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

C. suppress key events for the GameCanvas object 

D. poll for the current state of user key input in a loop, using getKeyStates() 

Answer: C,D 


Q115. - (Topic 2) 

What is the result if a call to serviceRepaints() triggers a separate thread to invoke paint()? 

A. A deadlock always occurs. 

B. The system may deadlock if the caller to serviceRepaints() holds a lock that is also needed by paint(). 

C. An exception is thrown at runtime. 

D. MIDP is thread-safe. There will never be a deadlock. 

Answer: B 


Updated 1Z0-869 test preparation:

Q116. - (Topic 2) 

Given a MIDlet suite with the following JAD file: 

1.

 MIDlet-1: MyMIDlet, MyMIDlet.png, MyMIDlet 

2.

 MIDlet-Jar-Size: 23040 

3.

 MIDlet-Name: MyFirstMIDlet 

4.

 MIDlet-Version: 1.0 

5.

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

6.

 MIDlet-Vendor: 

MyCompany and manifest file: 

1.

 MIDlet-Name: MyFirstMIDlet 

2.

 MIDlet-Version: 1.1 

3.

 MIDlet-Vendor: MyCompany 

4.

 MIDlet-1: MyMIDlet, MyMIDlet.png, 

MyMIDlet Which is true about the installation? 

A. The installation fails because the JAD file is invalid. 

B. The installation fails due to an attribute mismatch. 

C. The installation fails because the manifest is invalid. 

D. The installation succeeds. 

Answer: B 


Q117. - (Topic 2) 

Click the Exhibit button. The application has a single Displayable object. Which two are true? (Choose two.) 

A. The Exit command must have been set with a priority equal to or greater than the priorities of commands Go, Foo, and Bar. 

B. The program code did NOT necessarily specify the location of the Exit button. 

C. If Go, Foo, and Bar are all Command objects, each may have its own separate CommandListener object. 

D. In the MIDlet code, a Command object of type Command.MENU must have been created. 

E. If Go is a Command object, it is possible that another device would map Go to a button on the device (as opposed to a menu list). 

Answer: B,E 


Q118. - (Topic 3) 

Which URL indicates the intention for one JTWI device to communicate with another JTWI device? 

A. cbs://+18005551234:1234 

B. sms://+18005551234 

C. sms://+18005551234:1234 

D. cbs://+18005551234 

Answer: C 


Q119. DRAG DROP - (Topic 3) 

Click the Task button. 

Place each class on its corresponding specification. 

Answer: 


Q120. DRAG DROP - (Topic 3) 

Click the Task button. 

Place the connection strings on their corresponding connection interfaces. 

Answer: