Oracle Oracle Certifications 1Z0-863 Questions & Answers

• Question 41:

  Which three can an EJB-based endpoint use? (Choose three.)

  A. HTTP sessions

  B. Java EE 5 declarative security

  C. Java EE 5 programmatic security

  D. client-demarcated transactions

  E. container-managed transactions

  Correct Answer: BCE

• Question 42:

  Given:

  1.

  @WebService(name="LogInventory")

  2.

  public class InventoryReader {

  3.

  @WebMethod(operationName=check)

  4.

  @OneWay

  5.

  public void checkProduct(String name);

  6.

  @WebMethod

  7.

  public void addInventory(

  8.

  @WebParam(name="total") int quantity)

  9.

  throws InventoryException;

  10.

  }

  Assume the code is free of gross flaws and syntax errors.

  Which two statements are true? (Choose two.)

  A. Line 8 specifies that addInventory accepts either a valid total or quantity.

  B. Line 1 indicates the portType is LoginInventory.

  C. Line 3 shows the method is mapped to the WSDL operation called checkProduct.

  D. Line 4 means that a method is not expected to return a value unless requested.

  E. Line 6 implies WSDL operation and method name are the same.

  Correct Answer: BE

• Question 43:

  A developer is given a WSDL for an existing Web service. What is the correct sequence of steps that must be taken to use that Web service?

  A. parse the WSDL using JAXP, connect to the service using RMI, and then parse the XML using SAX

  B. use a utility (such as wsimport) to read the WSDL and generate a service endpoint interface

  C. register the WSDL with wsgen, bind to the stubs, and then call methods on the interface

  D. receive the service using RMI, parse the XML using JAXP, create Java objects using JAXR, and then return those Java objects

  Correct Answer: B

• Question 44:

  Which two statements are true about elements in a WSDL document? (Choose two.)

  A. Operation is an abstract set of port types supported by one or more endpoints.

  B. Service is an abstract set of operations supported by one or more endpoints.

  C. Message is an abstract description of an action supported by the service.

  D. Operation is an abstract description of an action supported by the service.

  E. Binding is a single endpoint defined as a combination of an operation and a network address.

  F. Message is an abstract, typed definition of the data being communicated.

  Correct Answer: DF

• Question 45:

  A developer is asked to determine which Web services approach is correct for a new project. A SOAP-based Web service must be created and deployed in an environment where many customers will use it. These customers will be responsible for developing their own clients, based on the published WSDL. Which approach is correct to use first in this situation?

  A. Java, because the WSDL generated later will be more accurate

  B. WSDL, because the service and customers can benefit from the strongly typed schema

  C. Java, because the service must be efficient to support many customers

  D. WSDL, because tools allow existing classes to be easily mapped without modification

  Correct Answer: B

• Question 46:

  Which two statements are true about creating a Web service with JAX-WS? (Choose two.)

  A. Stateless Web services must be created with HTTP servlet endpoints.

  B. Creating the portable artifacts by hand is slow, but makes a service easier to maintain.

  C. All Java-based endpoints share a common packaging model.

  D. EJBs can serve as endpoints if hosted in a container with runtime and service support.

  E. JAX-WS supports creating services from source and compiled code without a WSDL.

  Correct Answer: DE

• Question 47:

  What are two features of a WSDL 1.1 document? (Choose two.)

  A. Service defines a collection of related endpoints.

  B. Service describes the message's payload using XML.

  C. Service assigns an Internet address to a specific binding.

  D. Porttype declares complex data types and elements used elsewhere.

  E. Porttype elements are used to group a set of abstract operations.

  F. Porttype defines a concrete protocol and data format specification.

  Correct Answer: AE

• Question 48:

  Which two implementations of JSON Web services benefit from the inherent structure of JSON messages? (Choose two.)

  A. remote procedure calls

  B. geocoding

  C. Enterprise Service Bus messaging

  D. map image

  E. stateful session management

  Correct Answer: BD

• Question 49:

  Place the general steps in the JAXB data binding process in the correct order.

  a.

  compile classes

  b.

  generate classes

  c.

  generate content tree

  d.

  marshall

  e.

  process content

  f.

  unmarshall

  g.

  validate

  A.

  f,b,a,c,g,e,d

  B.

  b,a,d,c,g,e,f

  C.

  b,a,f,c,g,e,d

  D.

  b,a,d,c,e,f,g

  E.

  f,c,a,b,g,e,d

  Correct Answer: C

• Question 50:

  RESTful Web services have an interface of well-known standard operations, and all services are accessed through this interface. What are the four standard operations available for RESTful Web services? (Choose four.)

  A. GET

  B. CONNECT

  C. PUT

  D. SUBMIT

  E. POST

  F. HEAD

  G. DELETE

  Correct Answer: ACEG