Online Access Free 1Z0-850 Exam Questions

Given:
1 1. interface A {
1 2. void someMethod();
1 3. }
1 4. class B implements A {
1 5. public void someMethod() { }
1 6. }
Which represents the "program to an interface" principle?

• A.public A make() { return new A(); }
• B.public A make() { return new B(); }
• C.public B make() { return new B(); }
• D.public B make() { return new A(); }

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

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

Which statement is true?

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

Which two are advantages of using J2EE server-side technologies in a web-based application? (Choose two.)

• A.monolithic design
• B.scalability
• C.separation of concerns
• D.network latency
• E.complexity

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

• A.class Cat {
  Dog d;
  }
  class Dog {
  Cat c;
  }
• B.class Cat { }
  class Dog { }
• C.class Cat {
  Dog d;
  }
  class Dog { }
• D.class Cat { }
  class Dog {
  Cat c;
  }