A company is building a customer relationship management system that is to be deployed on a customer's network, and they want software functions to be reused and combined in different modules in the system. The Director of Technology has determined that the new system should utilize both Web services and a Service Oriented Architecture (SOA). Which two statements about Web services in an SOA are correct? (Choose two.)
A. A Web service must be discovered from a UDDI registry in an SOA.
B. SOA and Web services both use the HTTP protocol at the transport layer.
C. A Web service must publish itself to a UDDI registry to become part of an SOA.
D. SOA is a way to design a system and Web services are a possible implementation.
E. SOA is used for stateless invocations, and Web services for stateful invocations.
F. SOA emphasizes the concept of service encapsulation and Web services fulfill a service contract.
A company's new investment management Java application and a legacy stock trader application need to communicate, but they use different JMS implementations. A developer decides to implement a JMS bridge to solve the problem. Which two advantages does this pattern provide? (Choose two.)
A. It converts the interface of a class into another interface that clients expect.
B. It decouples an abstraction from its implementation so that the two can vary independently.
C. It dynamically attaches additional responsibilities to an object.
D. It optimizes network traffic.
E. It is vendor independent.
Which two statements are true about the Web services? (Choose two.)
A. SOAP messages are compressed during transport.
B. You must implement session tracking via HTTP cookies.
C. The WSDL defines services as collections of network endpoints.
D. All data shared between Java and non-Java components must be in XML format.
E. Data interchange is standardized in XML.
F. Stateful Web services must be implemented in a heterogeneous environment.
A team of developers is describing a set of endpoints in their new SOA application. Given the WSDL extract:
Which statement is true about this WSDL extract?
A. The extract is WS-I Basic Profile 1.1 compliant because both port element names are different.
B. The extract is NOT WS-I Basic Profile 1.1 compliant because both port elements point to the same location.
C. The extract is WS-I Basic Profile 1.1 compliant because both port elements point to different binding elements.
D. The extract is NOT WS-I Basic Profile 1.1 compliant because it contains two port elements in the same service.
E. The extract is WS-I Basic Profile 1.1 conformant because both port element names are different.
F. The extract is WS-I Basic Profile 1.1 conformant because the port, binding, and service element combinations are unique.
Which two statements are true about the role of XML schemas in Web services? (Choose two.)
A. DTDs provide stricter data typing than XML schemas.
B. XML schemas can be used to validate the organization of XML documents.
C. XML schemas contain a vocabulary, content model and data types.
D. DTDs are easier to map to Java than XML schemas, and so remain more popular.
E. The W3C recommends that XML schemas be referred to as XSD.
F. The W3C has designated that XML schemas be referred to as WXS.
A developer must modify an existing Web service client program. XML used by the service must be updated and archived for use in other systems. The developer chooses the Dispatch API. Which two statements are true about this approach? (Choose two.)
A. Dispatch is generic and can be instantiated for use with XML or SOAP.
B. The Web service can be either SOAP or REST-based.
C. The Dispatch instance must be created in Service.Mode.PAYLOAD mode in order to use SOAP.
D. Instantiating Dispatch Service.Mode.MESSAGE mode allows you to work directly with the XML message.
E. It is unnecessary to use JAXB with the Dispatch API.
Which two statements are true about JAX-WS support for data bindings? (Choose two.)
A. Data binding is performed with only generated classes to reduce errors and hide complexity.
B. JAXB 2.0 is preferred.
C. Inline binding declarations with XML Schema are NOT supported for JAXB 2.0.
D. SAAJ 1.3 is supported for data binding with SOAP.
E. JAX-RPC data binding is recommended for cross-platform interoperability.
A developer needs to write a Web service that supports user sessions that timeout after 120 seconds. Which configuration file is correct for the developer use?
A. web.xml
B. server.xml
C. ejb-jar.xml
D. service-config.xml
Which two statements are true about the I-Stack and annotations technologies? (Choose two.)
A. With 64-bit Java, JAXB compatible parameters are preferred for performance.
B. @WebMethod is required for private methods, but public methods are exposed in any service automatically.
C. Declaring business methods final is a good way to protect the integrity of the implementation class.
D. Method parameters and return types must be compatible with the JAXB 2.0.
E. JAX-WS uses annotations to invoke Web service requests at runtime.
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.
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