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1z0-900 by Oracle - Page 1 | ExamCademy

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Question 3

Given the code fragment:

Question 4

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>

Question 5

Given the code fragment:

Question 6

Given:

Question 7

Given:

Question 8

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

Question 9

Given:

Question 10

Given the code fragments:

Question 11

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.

Question 12

Which two capabilities are provided by the Java Authentication and Authorization Services (JAAS) API? (Choose two.)

A protecting data from unauthorized viewing by using encryption
B verifying that a user is allowed to perform an action
C ensuring that data is not modified in transit
D verifying identity claims from users

Question 13

Given the code fragment:

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Know a question that should be here? Contribute to this exam

You need to develop a chat application, which allows the display of emoticons and images together with text messages.
How should you configure a WebSocket endpoints to receive both text and binary messages?

A Create two @onMessage methods in the same endpoint with appropriate parameter types.
B Define the @onMessage methods in your endpoint with Object as parameter and check the actual type in your code.
C You can achieve this only by creating separate WebSocket endpoints for each message type.
D Create two @onMessage methods, each with appropriate decoder attribute in the same endpoint.

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.)

A <h:inputText value="#(searchMB.query)"> <f:param name="placeholder" value="Search Here"/> </h:inputText>
B <h:inputText value="#(searchMB.query)" placeholder="Search here"/>
C <input jsf:id="search" placeholder="Search here" jsf:value="# (searchMB.query)"></input>
D <h:inputText pt:placeholder="Search Here" value="#(searchMB.query)"/>
E <input id="search" jsf:placeholder="Search Here" value="$(searchMB.query)"></input>

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)

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)

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

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

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.

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); utx.commit();
C entityManager.lock(emp); EntityManager.merge(emp);
D entityManager.getTransaction().begin(); entityManager.merge(emp); entityManager.getTransaction().commit();

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.

1z0-900Preview

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