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2021 May 1Z0-862 Study Guide Questions:
Q11. A developer is building a real-time stock market monitoring application. Due to the volume of stock information pulled from the financial markets and the delays encountered when receiving data back from the servers, the developer decides to implement the asynchronous interaction pattern. Which three are implementations of this pattern? (Choose three.)
A. client-side push
B. client-side pull
C. server-side push
D. server-side pull
E. JMS-based
F. JAXB-based
Answer: BCE
Q12. What are two benefits of utilizing JSON-based Web services when compared to a solution that is XML-based? (Choose two.)
A. good namespace support
B. fast object de-serialization
C. plentiful selection of development tools
D. grammar defined by DTD
E. concise format
F. can be used for a wide variety of tasks
Answer: BE
Q13. Which statement is true about the tool integration in JAX-WS?
A. WSIT is Sun's open source implementation of tools using the provider API.
B. Java offers a tool provider API, though the tools themselves come from third parties.
C. The API allows tool use from the command line, Ant and IDE.
D. C and C++ are most commonly used to extend the annotation library.
Answer: C
Up to date 1Z0-862 real exam:
Q14. A developer is analyzing an existing Web service with performance problems. The analysis reveals the service employs SOAP over HTTP. When the size of the encoded binary files grew with changing business requirements, the service slowed. What are two effective solutions for this problem? (Choose two.)
A. Separating the XML and binary content with WS-Filtering implemented in WSIT will improve efficiency.
B. XML documents larger than 1 KB with binary encoding should be optimized.
C. WS-Addressing can ease congestion by routing messages over other protocols.
D. For existing services, the most effective solution is to increase the available bandwidth.
E. MTOM can reduce both processing and bandwidth required by SOAP with attachments.
Answer: BE
Q15. A company is evaluating Java application servers in order to use one as a standard in the organization. What are two important facts that should be considered as they examine possible tools? (Choose two.)
A. Java EE 5 vendors MUST support the WS-I Basic Profile.
B. Java EE 5 vendors are NOT required to support the WS-I Basic Profile.
C. Applications deployed on the Java EE 5 platform must conform to the WS-I Basic Profile.
D. Applications deployed on the Java EE 5 platform are NOT required to conform to the WS-I Basic Profile.
E. JCAPS is included in all Java EE 5 application servers.
F. JSSE is an optional extension in all Java EE 5 application servers.
Answer: AD
Q16. Which statement is true about clients for Java EE 5 Web services and JAX-WS?
A. Java SE 6 clients are only possible when additional libraries are available at compile time.
B. Java EE 5 clients must have common runtime and communication characteristics.
C. All Java EE 5 components, including Java ME, are viable Web service clients.
D. Non-Java services must explicitly support the JAX-WS client communication models to be interoperable.
Answer: C
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Q17. According to the WS-I Basic Profile 1.1, which two statements are true about the targetNamespace attribute for xsd:schema elements that are children of WSDL 1.1 type element? (Choose two.)
A. Its value must be valid unless it has xsd:import, xsd:annotation, or both as its only child elements.
B. Its value must be empty unless it has xsd:import, xsd:annotation, or both as its only child elements.
C. It should have same the value as the namespace attribute on the wsdl:import element in a document being imported.
D. It must have same the value as the namespace attribute on the wsdl:import element in a document being imported.
Answer: AD
Q18. 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
Answer: BCE
Q19. A developer is trying to incorporate an existing schema into a document.In the code fragments, which types definition correctly uses an existing schema?
A. <types>
import namespace="http://www.sun.com/jws"
schemaLocation="http://www.sun.com/jws/my.xsd"
</types>
B. <types>
include namespace="http://www.sun.com/jws"
schemaLocation="http://www.sun.com/jws/my.xsd"
</types>
C. <types>
<xsd:schema targetNamespace="http://www.sun.com/jws"> <xsd:import namespace="http://www.sun.com/jws"
location="http://www.sun.com/jws/my.xsd" />
</xsd:schema>
</types>
D. <types>
<xsd:schema targetNamespace="http://www.sun.com/jws"> <xsd:import namespace="http://www.sun.com/jws"
schemaLocation="http://www.sun.com/jws/my.xsd" /> </xsd:schema>
</types>
E. <types>
<xsd:schema targetNamespace="http://www.sun.com/jws"> <xsd:include namespace="http://www.sun.com/jws" schemaLocation="http://www.sun.com/jws/my.xsd" /> </xsd:schema>
</types>
F. <types>
<xsd:schema>
<xsd:include namespace="http://www.sun.com/jws" schemaLocation="http://www.sun.com/jws/my.xsd" /> </xsd:schema>
</types>
Answer: D
Q20. According to the XML-to-Java mappings used by JAX-WS, which three elements or attribute declarations are mapped to a Java primitive wrapper class (for example, java.lang.Short)? (Choose three.)
A. <xsd:element name="age" type="xsd:short" minOccurs="0"/>
B. <xsd:element name="age" type="xsd:short" nillable="true"/>
C. <xsd:element name="age" type="xsd:short" nillable="false"/>
D. <xsd:attribute name="required" type="xsd:boolean" use="optional"/>
E. <xsd:attribute name="required" type="xsd:boolean" use="required"/>
F. <xsd:attribute name="required" type="xsd:boolean" nillable= false/>
Answer: ABD