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Oracle 1z0-419 Exam Practice Questions (P. 5)

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Question #21
View the Exhibit.

Which two modifications would you make in the task flow so that RegisterRouter displays the appropriate page depending on the user type and subsequently displays the confirmation page? (Choose two.)
  1. A
    Define the isCustomer outcome in RegisterRouter.
  2. B
    Create a global control flow rule pointing to CustomerPage.
  3. C
    Create a control flow rule from EmployeePaqe to Confirmation.
  4. D
    Change the default activity from Register to RegisterRouter.
  5. E
    Set the isEmployee outcome to #{FALSE}.

Correct Answer:
AB

Question #22
You create a default view object based on the Employees entity, using the wizard and accepting the default settings.
Which option represents the source file(s) that are typically created for you? (Choose the best answer.)
  1. A
    EmployeesView.xml
  2. B
    EmployeesViewImpl.java
  3. C
    EmployeesViewRowImpl.java
  4. D
    EmployeesView.sql
  5. E
    EmployeesView.xml and EmployeesViewImpl.java

Correct Answer:
A
What Happens When You Create an Entity-Based View Object
When you create an entity-based view object, JDeveloper creates the XML component definition file that represents the view object's declarative settings and saves it in the directory that corresponds to the name of its package. For example, if the view object was named StaffList in the devguide.model.queries package, so the XML file created will be ./devguide/model/queries/StaffList.xml under the project's source path. This XML file contains the information about the SQL query, the name of the entity usage, and the properties of each attribute. If you're curious to see its contents, you can see the XML file for the view object by selecting the view object in the Application Navigator and looking in the corresponding Sources folder in the Structure Window. Double-clicking on the StaffList.xml node will open the XML in an editor so you can inspect it.
References:
https://docs.oracle.com/cd/B31017_01/web.1013/b25947/bcvoeo002.htm

Question #23
Which two statements describe the characteristics of an entity object? (Choose two.)
  1. A
    An entity object represents a cache for records retrieved from the database.
  2. B
    An entity object includes an ORDER clause to allow you to order the data in it.
  3. C
    An entity object includes a WHERE clause to allow you to shape the data in it.
  4. D
    Every column in a database table must be represented as an entity object attribute.
  5. E
    An entity object definition is described in XML.

Correct Answer:
AD
A: An entity object caches data from a database and provides an object-oriented representation of it.
D: When you use a Business Components for Java wizard to create entity objects from existing tables, each database table becomes an entity object. Each column in the database table becomes an entity object attribute, which can have the same name as the column or a different name that is more meaningful to your business application.
References:
https://docs.oracle.com/cd/A97335_02/apps.102/bc4j/developing_bc_projects/bc_awhatisaneo.htm

Question #24
Which three options are available in the ADF Controller that are not available in the generic JSF 2.0 controller layer? (Choose three.)
  1. A
    pageflow scope: a memory scope for managed beans that is available for several pages (longer than a request scope and shorter than a session scope)
  2. B
    ability to break the page flow of an application into multiple files
  3. C
    subflows that can be included as regions inside a page
  4. D
    method calls as part of the definition of a page flow
  5. E
    defining managed beans that contain references to components on a page

Correct Answer:
ACE
A: ADF Memory scopes -
There are 6 types of memory scopes
3 from standard JSF application
1) Application Scope 2) Session scope 3) Request scope
In addition to above ADF Faces provides the following
4) PageFlowScope 5) BackingBeanscope 6) ViewScope
C: There is no such thing as subflows in JSF, but they do exist in ADF.
E: Backing bean scope:
✑ Special case of request scope
✑ Associated with a specific manage bean instance
✑ Used with declarative components, regions and page fragments that use a managed bean to hold view state information
✑ Allows multiple instances of the components to co-exists on a single page
Use this scope if it is possible that your task flow appears in two ADF regions on the same JSF page and you want to isolate each instance of ADF region
References:
http://kotreshtm.blogspot.se/2015/04/adf-basics-memory-scope.html

Question #25
Which two options represent techniques that you would use together to deploy an ADF application? (Choose two.)
  1. A
    Deploy an EAR file by using Enterprise Manager.
  2. B
    Create an EAR deployment profile in JDeveloper.
  3. C
    Deploy a WAR file by using Ant or ojdeploy.
  4. D
    Create a JAR deployment profile for a shared library in JDeveloper.
  5. E
    Deploy a WAR file by using Enterprise Manager.

Correct Answer:
AB
A: Deploying ADF Applications -
You can use Oracle Enterprise Manager Fusion Middleware Control to deploy the EAR file created in JDeveloper.

B: Deploying ADF Applications -
During application development using JDeveloper, developers can test the application using the Integrated WebLogic Server that is built into the JDeveloper installation, or they can use JDeveloper to directly deploy to a standalone application server.
Incorrect Answers:
C, E: For ADF applications, WAR and MAR files can be deployed only as part of an EAR file.
References:
https://docs.oracle.com/cd/E26098_01/admin.1112/e16179/deploy.htm#ADFAG20574

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