Download Java EE 7 Application Developer.1z0-900.PracticeTest.2019-08-05.71q.vcex

Vendor:	Oracle
Exam Code:	1z0-900
Exam Name:	Java EE 7 Application Developer
Date:	Aug 05, 2019
File Size:	266 KB

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Demo Questions

Given the code fragment:

Which code can be added to register both of these methods to receive BankEvent notifications only if an instance of BankActivityService is already instantiated in the current context?

@Observes(notifyObserver=IF_EXISTS) on line 3 and line 6
@Observes(during=IN_PROGRESS) on line 1
@Observes(during=AFTER_COMPLETION) on line 1
@Observes(notifyObserver=IF_EXISTS) on line 4 and line 7 before method parameter declaration

Correct answer: A

Explanation:

Reference https://docs.oracle.com/javaee/7/tutorial/cdi-adv005.htm

Which code snippet prints the exception error message as part of the page output?

<%= exception.message %>
<c:out value=”${requestScope[‘javax.servlet.error.exception’]}”/>
<% exception.getMessage(); %>
<% System.out.println(e.getMessage()) %>

Correct answer: D

Explanation:

Reference: https://www.geeksforgeeks.org/3-different-ways-print-exception-messages-java/

Java EE’s support for WS-Security includes handling which two types of security credentials? (Choose two.)

X.509 certificates
SAML tokens
OAuth Bearer tokens
Two-factor authentication tokens

Correct answer: AB

Given the code fragment from a Facelet page:

On Line 1, you ae asked to insert a search box that displays the text “Search Here” via a placeholder.

Assume searchMB is a valid Managed Bean.

Which two options enable you to create a search box with a placeholder attribute on Line 1? (Choose two.)

<h:inputText value=“#(searchMB.query)”>
<f:param name=“placeholder” value=“Search Here”/>
</h:inputText>
<h:inputText value=“#(searchMB.query)” placeholder=“Search here”/>
<input jsf:id=“search” placeholder=“Search here” jsf:value=“# (searchMB.query)”></input>
<h:inputText pt:placeholder=“Search Here” value=“#(searchMB.query)”/>
<input id=“search” jsf:placeholder=“Search Here” value=“$(searchMB.query)”></input>

Correct answer: CE

Given the code fragment:

Which method should be used on line 3 to enable default validation mechanism?

u.setProperty(String, Object)
u.setProperty(Schema)
u.setEventHandler(ValidationEventHandler)
u.setAdapter(XmlAdapter)

Correct answer: D

Explanation:

Reference: https://docs.oracle.com/javaee/6/api/javax/xml/bind/Unmarshaller.html

How do you specify a default error page in your web.xml file?

<on-error>
<location>/general-error.html<location>
</on-error>
<error-page>
<error-code>*</error-code>
<location>/general-error.html</location>
</error-page>
<on-error>
<error-code>*</error-code>
<location>/general-error.html</location>
</on-error>
<error-page>
<location>/general-error.html</location>
</error-page>

Correct answer: B

Explanation:

Reference: http://www.codejava.net/java-ee/servlet/how-to-handle-error-in-web-xml-for-java-web-applications

Given the code fragment:

And

Which two steps, when performed independently, enable the index.xhtml page to print the following text: The Id is 12345? (Choose two.)

Replace line 2 with: @Inject public void setAcc(Account acc)
Replace line 3 with: @Inject public Account getAcc()
Replace line 1 with: @Inject private Account acc;
Replace line 3 with: public @Inject Account getAcc()
Replace line 1 with: private @Inject Account acc;
Replace line 2 with: public void setAcc(@Inject Account acc)

Correct answer: DF

Given the code fragments:

What code should you add to the body of the updateEmployee method in order to save pending changes to the database?

entityManager.merge(emp);
Context. Ctx = new InitialContext();
UserTransaction utx = (UserTransaction)ctx.lookup(“java:comp/UserTransaction”);
utx.begin();
entityManager.merge(emp);
utx.commit();
entityManager.lock(emp);
EntityManager.merge(emp);
entityManager.getTransaction().begin();
entityManager.merge(emp);
entityManager.getTransaction().commit();

Correct answer: B

When handling a JSF request, your application code decided to redirect the call to another URL by using HTTP redirect. Which action should you take to correctly complete the handling of the JSF life cycle?

Set the immediate=“true” attribute on the command button that was used to perform this call.
Invoke the dispatch() method on the ExternalContext object.
Invoke the setCurrentPhaseId(RENDER_RESPONSE) method on the FacesContext object.
Invoke the responseComplete() method on the FacesContext object.

Correct answer: C

Given the code fragment: