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2016 Dec 1Z0-850 exam question

Q1. - (Topic 1) 

Which environment has the highest probability of properly supporting an applet? 

A. mobile environments using telephone handsets 

B. Internet environment where client components are not standardized 

C. J2EE server environment 

D. intranet environment where client components are standardized 

Answer:


Q2. - (Topic 2) 

Which is true? 

A. All threads created by a given Java program share the same invocation stack. 

B. A J2SE program can create no more than 10 concurrent threads. 

C. Threading allows GUI applications to perform lengthy calculations and respond to user events at the same time. 

D. The Java threading model provides equal processor time to all threads. 

Answer:


Q3. - (Topic 2) 

Which is true? 

A. All threads created by a given Java program share the same invocation stack. 

B. A J2SE program can create no more than 10 concurrent threads. 

C. Threading allows GUI applications to perform lengthy calculations and respond to user events at the same time. 

D. The Java threading model provides equal processor time to all threads. 

Answer:


Q4. - (Topic 1) 

Which is a valid definition of an interface called Transportable given another valid interface, Movable? 

A. class Movable extends Transportable { /*...*/ } 

B. interface Transportable extends Movable { /*...*/ } 

C. class Movable implements Transportable { /*...*/ } 

D. interface Transportable implements Movable { /*...*/ } 

Answer:


Q5. - (Topic 1) 

Which is true about MIDlets? 

A. MIDlet devices are not required to allow applications to be uninstalled. 

B. The only API used to create MIDlets is the MIDP API. 

C. Devices that support MIDlets must allow the MIDlets to access the device's low-level functions. 

D. Devices that run MIDlets must provide software that manages wireless downloading of applications. 

Answer:


Renewal 1Z0-850 actual test:

Q6. - (Topic 2) 

Which two correctly import the Map class in the java.util package? (Choose two.) 

A. import *.Map; 

B. package java.util.Map; 

C. import Map; 

D. import java.util.Map; 

E. package java.util.*; 

F. import java.util; 

G. import java.util.*; 

Answer: D,G 


Q7. - (Topic 1) 

Click the Exhibit button. 

Which class has a superclass relationship? 

A. Z 

B. Y 

C. X 

D. W 

Answer:


Q8. - (Topic 2) 

Given: 

1.

 class Test { 

2.

 public static void main(String[] args) { 

3.

 int num = 1; 

4.

 for (num = 0; num < 3; ++num ) { 

5.

 num *= 2; 

6.

 } 

7.

 System.out.println("num = " + (num++)); 

8.

 } 

9.

 } 

What is the result? 

A. num = 4 

B. Compilation fails. 

C. num = 2 

D. num = 3 

E. num = 5 

Answer:


Q9. - (Topic 1) 

Given: 

3.

 int calc() { 

4.

 long x = 40L; 

5.

 int i = 30; 

6.

 i = x; 

7.

 System.out.println("result is: " + i); 

8.

 } 

What is the result of calling calc()? 

A. Compilation fails because of an error at line 6. 

B. Compilation fails because of an error at line 4. 

C. result is: 40 

D. result is: 30 

Answer:


Q10. - (Topic 1) 

Which two are NOT Enterprise Beans? (Choose two.) 

A. JavaBeans 

B. message-driven beans 

C. session beans 

D. entity beans 

E. business beans 

Answer: A,E