Oracle 1Z0-850 Online Practice Questions and Exam Preparation

Oracle 1Z0-850 Online Questions & Answers

• Question 1:

  What is the purpose of JNDI?

  A. to access native code from a Java application
  B. to parse XML documents
  C. to access various directory services using a single interface
  D. to register Java Web Start applications with a web server
  C. to access various directory services using a single interface

• Question 2:

  Which type of primitive can be assigned a new value within a conditional expression?

  A. char
  B. boolean
  C. byte
  D. int
  E. short
  B. boolean

• Question 3:

  Click the Exhibit button.

  Which two are true? (Choose two.)

  

  A. A Flux knows with which Grok it is associated.
  B. A Grok knows with which Flux it is associated.
  C. Deleting a Grok will cause a Plu to be deleted.
  D. Deleting a Plu will cause a Grok to be deleted.
  E. Deleting a Snip will cause its associated Grok to be deleted.
  F. Any Grok associated with a Flux must be deleted when the Flux is deleted.
  A. A Flux knows with which Grok it is associated.
  C. Deleting a Grok will cause a Plu to be deleted.

• Question 4:

  Which two are characteristics of applets? (Choose two.)

  A. Because it executes on the web server, the client does NOT incur the processing overhead.
  B. Applet security is provided by Java's sandbox security model.
  C. Applets can be developed quickly using HTML/JavaScript tags.
  D. Because code is downloaded at the time of execution, applets are easy to distribute.
  B. Applet security is provided by Java's sandbox security model.
  D. Because code is downloaded at the time of execution, applets are easy to distribute.

• Question 5:

  Given:

  5.

  class Foo {

  6.

  public int fooInt = 6;

  7.

  }

  8.

  9.

  public class Bar {

  10.

  static int myInt = 7;

  11.

  public static void main(String [] args) {

  12.

  // insert code here

  13.

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

  14.

  }

  15.

  }

  Which, inserted at line 12, creates the output myInt = 42?

  A. Foo f = new Foo;myInt = myInt * f.fooInt;
  B. myInt = myInt * f.fooInt;
  C. myInt = myInt * fooInt;
  D. Foo f = new Foo();myInt = myInt * f.fooInt;
  E. Foo f = Foo();myInt = myInt * fooInt;
  F. Foo f = new Foo();myInt = myInt * fooInt;
  D. Foo f = new Foo();myInt = myInt * f.fooInt;

• Question 6:

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

  A. JavaBeans
  B. message-driven beans
  C. session beans
  D. entity beans
  E. business beans
  A. JavaBeans
  E. business beans

• Question 7:

  Click the Exhibit button. Which is the class name?

  

  A. name
  B. age
  C. Dog
  D. eat
  E. bark
  C. Dog

• Question 8:

  You need an algorithm that must:

  Iterate through an array of primitive integers Print the value of each array element in index order If the value of the element is equal to 10, print the value of the element, and then terminate the iteration

  Which method correctly implements the algorithm?

  A. public static void foo(int[] list) {for each(int i in list) {System.out.println(i);if (i==10) terminate;}
  B. public static void foo(int[] list) {for(int i=0; i < list.length; i++) {System.out.println(i);if (i==10) continue;}
  C. public static void foo(int[] list) {for(int i:list) {System.out.println(i);if (i==10) break;}
  D. public static void foo(int[] list) {while(list.length > 0) {System.out.println(i);if (i==10) break;}
  E. public static void foo(int[] list) {for(int i=0; i < list.length; i++) {System.out.println(i);if (i==10) break;}
  C. public static void foo(int[] list) {for(int i:list) {System.out.println(i);if (i==10) break;}

• Question 9:

  Click the Exhibit button. Which is true about the use of italics in this diagram?

  

  A. The use of italics indicates that Blipvert is an abstract class.
  B. The use of italics indicates that Blipvert is an enumeration.
  C. The use of italics indicates that Blipvert is an interface.
  D. The use of italics carries no standard UML meaning.
  E. The use of italics indicates that Blipvert is a final class.
  A. The use of italics indicates that Blipvert is an abstract class.

• Question 10:

  Which Java technology provides a unified interface to multiple naming and directory services?

  A. JNI
  B. EJB
  C. JDBC
  D. JNDI
  E. JavaMail
  D. JNDI