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Java Standard Edition 5 and 6, Certified Associate Exam

Question No: 81 – (Topic 1)

Which Java technology provides a standard API for a publish-subscribe messaging model?

  1. JAX-RPC

  2. UDDI

  3. JNDI

  4. JMS

  5. JSP

Answer: D

Question No: 82 – (Topic 1)

A Java programmer wants to develop a small application to run on mobile phones. Which Java edition (or editions) are required to develop the application?

  1. only J2ME

  2. J2EE and J2ME

  3. J2SE and J2ME

  4. only J2EE

  5. J2SE and J2EE

  6. only J2SE

Answer: C

Question No: 83 – (Topic 1)

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

  1. mobile environments using telephone handsets

  2. Internet environment where client components are not standardized

  3. J2EE server environment

  4. intranet environment where client components are standardized

Answer: D

Question No: 84 – (Topic 1)

Which is an appropriate description of session beans?

  1. They are used to share data among clients.

  2. They are used to implement business processes.

  3. They are used to store persistent data.

  4. They are used to represent data in an RDBMS.

Answer: B

Question No: 85 – (Topic 1)

Which is NOT a characteristic of Swing?

  1. Swing components can display a platform-independent quot;look and feel.quot;

  2. Swing components are available in all web browsers.

  3. Swing components can be used to develop J2EE client applications.

  4. Swing components can display a platform-specific quot;look and feel.quot;

Answer: B

Question No: 86 – (Topic 1)

Click the Exhibit button. Which class correctly implements the interface Flyer?

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  1. Penguin

  2. Helicopter

  3. Airplane

  4. Lark

Answer: C

Question No: 87 – (Topic 1)

A business-tier service is being developed that will provide credit card validation. The service is not associated with a specific client, but is available to all clients. The service also has to be as efficient as possible. Which J2EE component matches these needs?

  1. entity bean

  2. stateful session bean

  3. stateless session bean

  4. servlet

  5. JNDI

    Answer: C

    Question No: 88 – (Topic 1)

    Given:

    1. interface Pet { }

    2. class Dog implements Pet { }

    3. class Beagle extends Dog { }

      Which three are valid? (Choose three.)

      1. Pet a = new Dog();

      2. Dog d = new Beagle();

      3. Dog f = new Pet();

      4. Beagle c = new Dog();

      5. Pet e = new Beagle();

      6. Pet b = new Pet();

        Answer: A,B,E

        Question No: 89 – (Topic 1)

        Given:

        1. class Test {

        2. public static void main(String args[]) {

        3. int num1 = 10, num2 = 20, result;

        4. result = calc(num1, num2);

        5. System.out.println(result); 6. }

7.

  1. // insert code here 9. }

    Which, inserted at line 8, produces the output 30?

    1. static int calc(int n1, int n2) { return n1 n2; }

    2. static void calc(n1, n2) { return (n1 n2); }

    3. public int calc(int n1, int n2) { return; }

    4. static int calc(int n1, int n2) { return; }

    5. public int calc(int n1, int n2) { return n1 n2; }

    6. static int calc(int n1, n2) { return n1, n2; };

Answer: A

Question No: 90 – (Topic 1)

Given:

  1. class Stone {

  2. String color = quot;whitequot;;

15. } 16.

  1. public class ManyStones {

  2. Stone[] stones = {new Stone(), new Stone(), new Stone()};

19. }

Which is true?

  1. Compilation fails.

  2. The class ManyStones has a color attribute.

  3. The class Stone has a relationship to a ManyStones object.

  4. The class ManyStones CANNOT have access to multiple class Stone objects.

  5. The class ManyStones has a relationship to three Stone objects.

Answer: E

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