Online Access Free 1Z0-850 Practice Test

Click the Exhibit button.
Which correctly implements the relationships shown in the diagram?

• A.public class Z {
  private Y[] y1and2;
  public Z(Y[] y1and2) {
  if (y1and2 == null || y1and2.length != 2) {
  System.exit(1); // ERROR!
  }
  this.y1and2 = y1and2;
  }
  }
• B.public class Y {
  private Z z1;
  private Z z2;
  public Y(Z z1) {
  if (z1 == null) System.exit(1); // ERROR!
  this.z1 = z1;
  }
  public Y(Z z1, Z z2) {
  this(z1);
  this.z2 = z2;
  }
  }
• C.public class Z {
  private Y y1;
  private Y y2;
  public Z(Y y1) {
  if (y1 == null) System.exit(1); // ERROR!
  this.y1 = y1;
  }
  public Z(Y y1, Y y2) {
  this(y1);
  this.y2 = y2;
  }
  }
• D.public class Y {
  private Z[] z1and2;
  public Y(Z[] z1and2) {
  if (z1and2 == null || z1and2.length != 2) {
  System.exit(1); // ERROR!
  }
  this.z1and2 = z1and2;
  }
  }

Which two are true about JavaScript and HTML? (Choose two.)

• A.JavaScript has a function that can open a new browser window.
• B.JavaScript must be deployed in a separate file from HTML.
• C.HTML is displayed in a client-side environment.
• D.JavaScript runs only in a server-side environment.

Which two are provided by the JNDI API? (Choose two.)

• A.an application-level interface used by the application components to access naming services
• B.an interface to query directory services using SQL
• C.a framework for handling data in different MIME types, originating in different formats and locations
• D.a service-provider interface to attach providers of directory services

Which three can be included in an interface declaration? (Choose three.)

• A.protected void showMessage();
• B.abstract void showMessage();
• C.private void showMessage();
• D.static void showMessage();
• E.void showMessage();
• F.public void showMessage() {
  System.out.println("Hello.");
  }
• G.public void showMessage();

Which statement is true?

• A.JMS enables an application to provide tightly coupled, distributed communication.
• B.The JMS API is located in the java.jms package.
• C.JMS enables an application to provide flexible, asynchronous data exchange.
• D.JMS provides interfaces to naming and directory services.