oracle 1z0-900 practice test

Given the code fragment:

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

• A. u.setProperty(String, Object)
• B. u.setProperty(Schema)
• C. u.setEventHandler(ValidationEventHandler)
• D. u.setAdapter(XmlAdapter)

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

• A. <on-error><location>/general-error.html<location></on-error>
• B. <error-page><error-code>*</error-code><location>/general-error.html</location></error-page>
• C. <on-error><error-code>*</error-code><location>/general-error.html</location></on-error>
• D. <error-page><location>/general-error.html</location></error-page>

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.)

• A. Replace line 2 with: @Inject public void setAcc(Account acc)
• B. Replace line 3 with: @Inject public Account getAcc()
• C. Replace line 1 with: @Inject private Account acc;
• D. Replace line 3 with: public @Inject Account getAcc()
• E. Replace line 1 with: private @Inject Account acc;
• F. Replace line 2 with: public void setAcc(@Inject Account acc)

Given:

How often does the submitted task run?

• A. need more details to determine
• B. once
• C. as many times as you like
• D. based on a schedule

: 15
Given:

What code needs to be added to line 1 for MyMapper bean instances to be correctly passivated?

• A. @Stateless @PassivationCapable
• B. @Stateless
• C. @Stateful @PassivationCapable
• D. @Stateful

Which URL represents an invalid approach to pass a parameter to a REST resource?

• A. <base-url>/Employees?value=1
• B. <base-url>/Employees&value=1
• C. <base-url>/Employees/1
• D. <base-url>/Employees;value=1

Given:

If an exception is thrown inside the if block, what effect will it have on the transaction?

• A. The transaction will be committed.
• B. The transaction will be suspended.
• C. The transaction will be rolled back.

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?

• A. entityManager.merge(emp); B. Context. Ctx = new InitialContext();UserTransaction utx = (UserTransaction)ctx.lookup(“java:comp/UserTransaction”);utx.begin();entityManager.merge(emp);u tx.commit();С. entityManager.lock(emp);EntityManager.merge(emp); C. entityManager.getTransaction().begin();entityManager.merge(emp);entityManager.getTransaction(). commit();

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?

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

Given the code fragment:

When the context root is requested
http://host:port/context
, how does the container resolve this
mapping?

• A. thirdServlet handles the request.
• B. firstServlet handles the request.
• C. The container throws an error at startup.
• D. secondServlet handles the request.