Oracle Java Platform, Enterprise Edition 6 Web Services Developer Set 2

Question - 15 Maximum mark : - 30

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Oracle Java Platform, Enterprise Edition 6 Web Services Developer Set 2

Which two statements are true about WSIT client development and using the WSIT configuration file? (Choose two.)

Client configuration files do NOT contain information security features, such as authentication. The file contains the URL for the WSDL. To maintain interoperability, the configuration file must not name packages. A WSIT client uses the file as a WSDL proxy is available from any WSIT compliant service. The wsimport tool uses the file to access the WSDL and build stubs to access a service.

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Answer & Solution

Answer: Option B

Solution:

It provides fallback for IE8.

According to the WS-I Basic Profile 1.0a, what is true about the SOAP 1.1 encodingStyle attribute?

It can occur anywhere in a message. ✘ It can only be declared on children Header elements. ✘ It can be declared on any children of the Body elements of rpc-literal messages. ✘ It cannot be used with elements qualified by the http://schemas.xmlsoap.org/soap/envelope namespace. ✔ WS-I Basic Profile 1.1 does NOT give any guidance because encodingStyle is a SOAP 1.1 attribute. ✔

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Answer & Solution

Answer: Option B

Solution:

It provides fallback for IE8.

Choose the statement that best describes the use of Enterprise Beans as JAX-RS root resources:

An Enterprise Bean can be made a JAX-RS root resource only if EJB-specific features such as transaction management or security validation are not used. ✘ JAX-RS imposes no limitations on the characteristics ofthose Enterprise Beans that can be exposed asJAX-RSresource classes. ✘ An Enterprise Bean that is exposed as a JAX-RS root resourcecan no longer be used directly as a remotebean itself - thebean implementation class can be accessed via the remote EJBdistributed framework (RMI), or a JAX- RS root resource, but not both concurrently within the same application. ✘ An Enterprise Bean that is exposed as a JAX-RS root resource supports all the same features as a JAX-RSresource that it supports as an EJB. ✔

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Answer & Solution

Answer: Option B

Solution:

It provides fallback for IE8.

Where can a developer specify confidentiality or integrity constraints on communications with a Enterprise Bean exposed as a JAX-RS root resource?(Choose one)

As annotations on the EJB exposed as a root resource. ✘ In the deployment descriptor for the EJB exposed as a root resource. ✘ In the deployment descriptor for the web application that is hosting the JAX-RS resource. ✘ In the vendor-specific configuration file for the container that is hosting the JAX-RS resource. ✔

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Answer & Solution

Answer: Option B

Solution:

It provides fallback for IE8.

Given this class: Choose the statement that best describes the potential to write a client implemented using JAX- WS to interact with the JAX-RS (restful) web service defined by this class (Choose one):

It is impossible, since JAX-WS requires that the underlying interaction be SOAP-based, and JAX-RS does not support SOAP. ✘ It is impossible, since JAX-RS does not support the same extension mechanism via JAX-WS Handlers thatJAX-WS supports. ✘ It is possible, since the JAX-WS API can be used to create a client that uses a simple raw XML protocol tointeract with a service at a given URL. ✘ It is possible, since a JAX-WS proxy Port type can be generated to use a simple raw XML protocol tointeract with a service at a specific fixed URL. ✔

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Answer & Solution

Answer: Option B

Solution:

It provides fallback for IE8.

Given that a web service endpoint is based on the stateless session EJB: Which is true about the security roles of clients of MrBean? (Choose one)

Only EJB clients must be in role A. ✘ Only Web Service clients must be in role A. ✘ Both EJB and web service clients must be in role A. ✘ Both EJB and web service clients must NOT be in role A. ✔

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Answer & Solution

Answer: Option B

Solution:

It provides fallback for IE8.

Choose the option that best describe the deployer's choices, when deploying an EJB that is also exposed as a RESTful web service using JAX-RS (Choose one):

The EJB can only be deployed to a web container, since RESTful access to the EJB requires a web container to support the HTTP interaction needed. ✘ The EJB can be deployed to any EJB or web container that would support local references to the EJB fromthe JAX-RS runtime in the ejb container. ✘ The EJB can be deployed to any EJB or web container that would support local references to the EJB fromthe JAX-RS runtime in the web container. ✘ The EJB can be deployed to an EJB or web container that is visible to the JAX-RS runtime, even on anapplication server separate from the JAX-RS runtime, since EJBs support local or remote interactions via RMI. ✔

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Answer & Solution

Answer: Option B

Solution:

It provides fallback for IE8.

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? (Choose one)

web.xml ✘ server.xml ✘ ejb-jar.xml ✘ service-config.xml ✔

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Answer & Solution

Answer: Option B

Solution:

It provides fallback for IE8.

A developer creates the following web service: Assuming that he packages the class in a war file without deployment descriptors, the web service is hosted by a EE container relative to module context at ? (Choose one)

"/Invoice" ✘ "/InvoicePort" ✘ "/InvoiceService" ✘ "/InvoiceWebService" ✔

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Answer & Solution

Answer: Option B

Solution:

It provides fallback for IE8.

10.

Given the resource class fragment: Choose the code fragment below that would secure access only to the Resource update() method (Choose one):

/rest

GET

POST

✘

/rest

POST

✘

/rest/id

POST

GET

✘

/id

POST

✔

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Answer & Solution

Answer: Option B

Solution:

It provides fallback for IE8.

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Oracle Java Platform, Enterprise Edition 6 Web Services Developer Set 2

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