Salesforce DEV-501 問題集

質問 1：
The list view picklist for an object, including its associated list of records for the currently selected view. In standard Salesforce applications this component is displayed on the main tab for a particular object. This component has additional attributes that can be specified, such as the height and rows per page, as compared to <apex:listView>.
Note: When an <apex:enhancedList> is rerendered through another component's rerender attribute, the <apex:enhancedList> must be inside of an <apex:outputPanel> component that has its layout attribute set to "block". The <apex:enhancedList> component is not allowed on pages that have the attribute showHeader set to false. You can only have five <apex:enhancedList> components on a single page. Ext JS versions less than 3 should not be included on pages that use this component.
A. apex:enhancedList
B. apex:attribute
C. apex:inputCheckbox
D. apex:actionFunction
正解：A

質問 2：
A template component that declares a named area that must be defined by an <apex:define> component in another Visualforce page. Use this component with the <apex:composition> and <apex:define> components to share data between multiple pages.
A. apex:insert
B. apex:inputFile
C. apex:outputText
D. apex:barSeries
正解：A

質問 3：
A developer needs to support multiple currencies for a custom object in an application. The multi-currency feature has been enabled for the organization.
What does the developer need to know in order to successfully support this application? Choose 2 answers
A. Roll-up summary fields on a parent record will calculate incorrectly if the child records have multiple currencies.
B. The multi-currency feature will automatically track historical exchange rates.
C. Administrators can add additional currencies after the application has been built.
D. Currency ISO code will need to be supplied when inserting records in different currencies.
正解：B,D

質問 4：
What trigger method is used to help prevent completion of a DML event?
A. Ids
B. TRUE
C. addError
D. No
正解：C

質問 5：
How are Apex triggers stored?
A. As .trigger files in the /code directory of your organization's public files.
B. As metadata in the application, under the object with which they are associated.
C. None of these
D. As compiled bytecode in the Salesforce platform Apex app server.
E. As static resources.
F. As resource files in the Developer Console.
正解：B

質問 6：
Which of the following statements are true about components of dynamic Apex?
-Schema describe is a way to program matically learn about the metadata of your data model
within Apex. -Dynamic SOQL refers to the creation of a SOQL string before runtime within an Apex script, -In dynamic SQQL, you use Sring.escapeSinqIeQuoLes (sLrng)to prevent SQQL injection. -You can use dynamic SOSL to create a tree structure of all the objects and fields in your
schema browser.
A. Schema describe is a way to program magically learn about the metadata of your data model within Apex.
B. In, like, and, or, not, group by, order by, all rows, limit
C. Create complex functionality declarative features cannot provide.
D. Web service methods must be static, webservice methods cannot be overloaded
正解：A

質問 7：
The method used to create an object out of a class definition is called a:
A. For loops
B. Webservice
C. TRUE
D. constructor
正解：D