Oracle 1z0-419 問題集

質問 1：
Which option is not supported by an af:table component? (Choose the best answer)
A. automatically switching a row to edit when the user clicks a row
B. turning off filtering for specific columns
C. grouping two columns under a single title
D. expandable area for each row
E. nested af:table for each row
F. multiple row selection
正解：D

質問 2：
Which statement is true about creating a method at the application module level? (Choose the best answer.)
A. You cannot create methods at the application module level.
B. Methods in an application module allow you to manipulate Ul components in the ViewController project
C. Because ADF provides no way at run time to automatically create or delete view object records, you must create application module methods to do this.
D. Application module methods provide an interface for the view layer to call custom business logic that may work across multiple data views.
E. Application module methods are best suited to writing validation logic for entity objects.
正解：D

質問 3：
Which two statements describe the characteristics of a view object?
A. it allows data to be ordered based on an ORDER clause.
B. it encapsulates a SQL query and simplifies working with data from a database.
C. it must include every attribute defined in an underlying entity object.
D. it represents an association between two entity objects.
E. it represents a row in the specified database table.
正解：A

質問 4：
Which statement is true about the use of data controls in JSF? (Choose the best answer)
A. Dragging a data control onto a JSF page generates a Java class that acts as a managed bean
B. A Databindings cpx file holds names of managed beans that you map to Ul elements
C. Data controls eliminate the need to use expression language in your JSF code for binding the Ul to data
D. An XXXpagedef xml file holds detailed information about a JSF page's use of data and operations exposed through ADF Data Controls
E. Only Oracle ADF Business Components can be exposed as data controls.
正解：C

質問 5：
Which three statements are true about declarative features of view objects? (Choose three.)
A. To implement master-detail behavior between two view object instances, you define an association between those instances.
B. You can use view object bind variables to parameterize a view object where clause with values supplied at run time.
C. By default, a view object instance retrieves all database rows into the view object cache.
D. A view object can include attnbutes whose values are based on SQL expressions rather than mapping directly to a database columr
E. A view object definition can include many view criteria but you can choose which view criteria to apply for each view object instance.
F. a view accessor defines a validation expression that you apply to a view object attribute.
正解：A,B,D

質問 6：
Which two statements are true about af:tree? (Choose two.)
A. You can show only one outputText per node in aftree.
B. Trees can display, at the most, a three-level-deep hierarchy.
C. You can specify a filter for a tree's node based on an attribute value at design time.
D. To modify the data fields shown in a node of a tree created with ADF binding, you need to edit the tree bindings.
正解：A,C

質問 7：
Consider a case where an application does not respond as predicted when a user submits data. Where would you set a breakpoint to debug the issue? (Choose the best answer)
A. a view activity that is used to determine where to send the user
B. the Apply Request Values phase of the life cycle
C. the partialTriggers property of the data bound component in the view
D. the value binding for the iterator on the pagedef for the view
正解：D

質問 8：
Consider the following code:
<af:inputTexl valueChangeListener="#{myBean.handleChange}r .../>
<af:commandButton actionListener= n#{myBean.doAction}" action="#
{myBean qetDestmation}" .../>
At run time, a user modifies the value in the af:inputText control, then presses afcommandButton
Assuming no errors are raised, which option represents the managed bean code invoked in the correct order1? (Choose the best answer.)
A. myBean handleChange, myBean doAction, myBean.qetDestination
B. myBean.doAction, myBean.handleChange
C. myBean.handleChange, myBean.doAction
D. myBean.doAction, myBean handleChange, myBean.getDestination
正解：C

質問 9：
Which two occur when a bounded task flow is created as a region on a page? (Choose two.)
A. An af:reqion tag is added to the page.
B. The transaction property of the task flow is set to "Use Existing Transaction if Possible."
C. a task flow binding is added to the page definition for the page.
D. The refresh property of the task flow binding is set to ifNeeded.
E. Any views defined as pages on the bounded task flow are changed to page fragments.
正解：A,C