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2016 Dec 1Z0-869 practice exam

Q1. - (Topic 2) 

Click the Exhibit button. Which two are true? (Choose two.) 

A. In class A, no new events will be delivered to the application until after the commandAction() method completes. 

B. The event-handling mechanism in class A allows multiple command events to be delivered to the application in parallel. 

C. The commandAction() method code in class B is compliant with the event-handling approach recommended in the MIDP 2.0 specification. 

D. The commandAction() method code in class A is NOT guaranteed to be portable across all MIDP 2.0-compliant devices. 

E. In class B, no new events will be delivered to the application until after the commandAction() method completes. 

F. The event-handling in class A will NOT print done with action until after the run() method has completed. 

Answer: A,E 


Q2. - (Topic 2) 

Given the MIDlet code: 

7.

 public void exitApp() { 

8.

 Runtime rt = Runtime.getRuntime(); 

9.

 rt.exit(0); 

10.

 } 

What is the result of a call to exitApp()? 

A. A SecurityException is thrown at line 9. 

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

C. Compilation fails because of an error on line 9. 

D. exitApp() completes execution successfully. 

Answer:


Q3. - (Topic 3) 

Which two features were introduced in CLDC 1.1? (Choose two.) 

A. random number generation 

B. weak reference support 

C. floating number support 

D. native interface support 

Answer: B,C 


Q4. - (Topic 1) 

Given: 

10.

 MessageConnection conn; 

11. 

12.

 public void startApp() { 

13.

 try { 

14.

 conn = (MessageConnection) Connector.open("cbs://:3382"); 

15.

 //... 

17.

 } catch (Exception e) { 

18.

 //... 

20.

 } 

21.

 } 

22. 

30.

 public void run() { 

31.

 Message msg = conn.receive(); 

32.

 //... 

40.

 conn.send(msg); 

41.

 } 

What is the result? 

A. An error at line 40 causes an exception at runtime. 

B. An error at line 14 causes compile to fail. 

C. An error at line 31 causes an exception at runtime. 

D. The code successfully sends a message. 

E. An error at line 14 causes an exception at runtime. 

Answer:


Q5. DRAG DROP - (Topic 3) 

Click the Task button. Place the classes and methods in the correct positions. 

Answer: 


Most up-to-date 1Z0-869 practice exam:

Q6. - (Topic 3) 

What is the minimum number of simultaneously running threads that a JTWI 1.0 device must support for each MIDlet suite? 

A. 3 

B. two running threads for each class of the MIDlet suite 

C. 1 

D. 10 

Answer:


Q7. - (Topic 2) 

Which exception is generated if a user rejects permission to any restricted resource? 

A. ConnectionNotFoundException 

B. IllegalAccessException 

C. SecurityException 

D. CertificateException 

Answer:


Q8. - (Topic 2) 

Which two are true about the javax.wireless.messaging.MessageConnection interface? (Choose two.) 

A. Threads that are waiting to receive messages must be blocking threads. 

B. An application can have both client and server mode MessageConnection instances open simultaneously. 

C. This interface is intended for all wireless messaging protocols. 

D. When creating a client mode message, a string that identifies an endpoint on the local host should be passed to Connector.open(). 

E. It provides methods to create Connector objects. 

Answer: B,C 


Q9. - (Topic 1) 

Click the Exhibit button. 

Given: 

String cert = getAppProperty("MIDlet-Certificate-1-1"); 

What value is assigned to the cert variable when run on a MIDP 2.0 implementation? 

A. The requested property value from the JAD file is assigned to cert. 

B. A runtime exception will occur. 

C. The requested property value from the MANIFEST.MF file is assigned to cert. 

D. The application will NOT install. 

Answer:

35. - (Topic 1) 

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

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

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

E. 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. 

Answer: B,D 


Q10. - (Topic 1) 

Which three statements are true regarding the handling of wireless connections? (Choose three.) 

A. Performing network operations on the same thread used by the display is likely to block refreshes of the display until the network operations complete. 

B. A network connection could interfere with other services on the device, such as the ability to receive phone calls or SMS on a phone. 

C. Devices can only support one HttpConnection at a time; therefore, network access from multiple threads must be serialized. 

D. The connection could unexpectedly terminate while processing the input or output streams. 

E. Network connections should never be performed on a separate thread, so problems can be handled quickly. 

Answer: A,B,D