Java EE 6 Web Services Developer Certified Expert Exam (1Z0-897) Free Practice Test

Question 1

A Web service needs to encrypt certain SOAP headers when responding. Which statement about this encryption is true?

A. Either the Web service business logic or runtime is appropriate for such encryption.

B. Transport level security protocol like SSL should be used to meet the requirements without code changes.

C. The Web service business logic is the appropriate place for such encryption.

D. The Web service runtime is the appropriate place for such encryption.

E. Neither the Web service business logic nor runtime is appropriate for such encryption.

Correct Answer: D

Question 2

An MTOM optimized infoset+attachment on the wire for a large binary data saves around X% in size when compared to original infoset, where X is: (Choose one)

A. 10%

B. 30%

C. 60%

D. 20%

Correct Answer: B

Question 3

Which two statements are true about public key digital signatures applied to Web services? (Choose two)

A. The sender creates a digital signature using its own private key and sends that signature along with the original document.

B. The receiver verifies that the message matches the digital signature using its own private key.

C. The sender creates a digital signature using its own public key and sends that signature along with the original document.

D. The receiver verifies that the message matches the digital signature using the sender's public key.

Correct Answer: A,D

Question 4

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

A. As annotations on the EJB exposed as a root resource.

B. In the deployment descriptor for the EJB exposed as a root resource.

C. In the vendor-specific configuration file for the container that is hosting the JAX-RS resource.

D. In the deployment descriptor for the web application that is hosting the JAX-RS resource.

Correct Answer: D

Question 5

A developer is writing a Web service method that needs to accept multiple types of requests. Based on the request's content, the service performs time-consuming steps, such as verifying the user's account, checking credit ratings, and building a list of offers. Which two approaches are appropriate to use in this situation? (Choose two.)

A. SMTP or other asynchronous protocol.

B. A synchronous, document-style approach.

C. An asynchronous, procedure-style approach.

D. HTTP and HTTPS.

E. An asynchronous, document-style approach.

F. A synchronous, procedure-style approach.

Correct Answer: A,E

Question 6

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

A. To maintain interoperability, the configuration file must not name packages.

B. Client configuration files do NOT contain information security features, such as authentication.

C. The file contains the URL for the WSDL.

D. The wsimport tool uses the file to access the WSDL and build stubs to access a service.

E. A WSIT client uses the file as a WSDL proxy is available from any WSIT compliant service.

Correct Answer: C,D

Question 7

A developer is asked to consult on a Web services project and assist the team with a good design approach on a new project. The team members disagree on whether to use WSDL or Java first. Several members are skilled with XML and see a schema and WSDL as the correct place to start. The team has also learned the deadline for this project has been moved up and another team plans to reuse their code. Which statement is true about the proper course of action to take in this situation?

A. WSDL should be used first because the team knows XML Schema.

B. WSDL should be used first because it will make the code easier to reuse for the other team.

C. Java should be used first because it is a strongly typed language and will result in a robust WSDL.

D. Java should be used first because it is often the fastest and easiest approach.

Correct Answer: D

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Oracle Java EE 6 Web Services Developer Certified Expert (1Z0-897) Free Practice Test