Salesforce PDI 問題練習

Question No : 1
How does the Lightning Component framework help developers implement solutions faster?

• A.By providing an Agile process with default steps
• B.By providing code review standards and processes
• C.By providing device-awareness for mobile and desktops
• D.By providing change history and version control

答えを確認する

正解:

Question No : 2
Universal Containers wants to back up all of the data and attachments in its Salesforce org once month.
Which approach should a developer use to meet this requirement?

• A.Use the Data Loader command line.
• B.Create a Schedulable Apex class.
• C.Schedule a report.
• D.Define a Data Export scheduled job.

答えを確認する

正解:

Question No : 3
developer created this Apex trigger that calls MyClass .myStaticMethod:
trigger myTrigger on Contact(before insert) ( MyClass.myStaticMethod(trigger.new, trigger.oldMap); }
The developer creates a test class with a test method that calls MyClass.mystaticMethod, resulting in 81% overall code coverage.
What happens when the developer tries to deploy the trigger and two classes to production, assuming no other code exist?

• A.The deployment fails because the Apex trigger has no code coverage.
• B.The deployment fails because no assertions were made in the test method.
• C.The deployment passes because the Apex code has required (>75%) code coverage.
• D.The deployment passes because both classes and the trigger were included in the deployment.

答えを確認する

正解:

Question No : 4
A developer has a VF page and custom controller to save Account records. The developer wants to display any validation rule violation to the user.
How can the developer make sure that validation rule violations are displayed?

• A.Add custom controller attributes to display the message.
• B.Include <apex:messages> on the Visualforce page.
• C.Use a try/catch with a custom exception class.
• D.Perform the DML using the Database.upsert() method

答えを確認する

正解:
Explanation: https://developer.salesforce.com/docs/atlas.en-us.pages.meta/pages/pages_compref_message.htm

Question No : 5
What can used to delete components from production?

• A.A change set deployment with the delete option checked
• B.An ant migration tool deployment with destructivechanges xml file and the components to delete in the package .xml file
• C.A change set deployment with a destructivechanges XML file
• D.An ant migration tool deployment with a destructivechanges XML file and an empty package .xml file

答えを確認する

正解:

Question No : 6
A developer observes that an Apex test method fails in the Sandbox. To identify the issue, the developer copies the code inside the test method and executes it via the Execute Anonymous tool in the Developer Console. The code then executes with no exceptions or errors.
Why did the test method fail in the sandbox and pass in the Developer Console?

• A.The test method has a syntax error in the code.
• B.The test method relies on existing data in the sandbox.
• C.The test method is calling an @future method.
• D.The test method does not use System.runAs to execute as a specific user.

答えを確認する

正解:

Question No : 7
A developer has a Apex controller for a Visualforce page that takes an ID as a URL parameter.
How should the developer prevent a cross site scripting vulnerability?

• A.ApexPages.currentPage() .getParameters() .get('url_param')
• B.ApexPages.currentPage() .getParameters() .get('url_param') .escapeHtml4()
• C.String.ValueOf(ApexPages.currentPage() .getParameters() .get('url_param'))
• D.String.escapeSingleQuotes(ApexPages.currentPage() .getParameters(). get('url_param'))

答えを確認する

正解:

Question No : 8
A developer needs to join data received from an integration with an external system with parent records in Salesforce. The data set does not contain the Salesforce IDs of the parent records, but it does have a foreign key attribute that can be used to identify the parent.
Which action will allow the developer to relate records in the data model without knowing the Salesforce ID?

• A.Create a custom field on the child object of type Foreign Key
• B.Create and populate a custom field on the parent object marked as Unique
• C.Create and populate a custom field on the parent object marked as an External I
• D.Create a custom field on the child object of type External Relationship.

答えを確認する

正解:

Question No : 9
Which three code lines are required to create a Lightning component on a Visualforce page? Choose 3 answers

• A.$Lightning.createComponent
• B.<apex:slds/>
• C.$Lightning.useComponent
• D.$Lightning.use
• E.<apex:includeLightning/>

答えを確認する

正解:

Question No : 10
Which exception type cannot be caught ?

• A.CalloutException
• B.A custom Exception
• C.NoAccessException
• D.LimitException

答えを確認する

正解:

Question No : 11
A developer wants to retrieve the Contacts and Users with the email address '[email protected]'.
Which SOSL statement should the developer use?

• A.FIND {[email protected]} IN Email Fields RETURNING Contact (Email), User (Email)
• B.FIND {Email = '[email protected]'} IN Contact, User
• C.FIND {Email = '[email protected]'} RETURNING Contact (Email), User (Email)
• D.FIND Email IN Contact, User FOR {dev2uc.com}

答えを確認する

正解:

Question No : 12
What are two characteristics related to formulas? Choose 2 answers.

• A.Formula can reference themselves.
• B.Formulas are calculated at runtime and are not stored in the database.
• C.Formulas can reference values in related objects.
• D.Fields that are used in a formula field can be deleted or edited without the formula.

答えを確認する

正解:

Question No : 13
A developer has a Visualforce page and custom controller to save Account records. The developer wants to display any validation rule violation to the user.
How can the developer make sure that validation rule violations are displayed?

• A.Add cuatom controller attributes to display the message.
• B.Include <apex:message> on the Visualforce page.
• C.Use a try/catch with a custom exception class.
• D.Perform the DML using the Database.upsert() method.

答えを確認する

正解:

Question No : 14
A developer is asked to create a Visualforce page for Opportunities that allows users to save or merge the current record.
Which approach should the developer to meet this requirement?

• A.A custom controller
• B.A custom controller extension
• C.Visualforce page JavaScript
• D.Standard controller methods

答えを確認する

正解:

Question No : 15
A developer wants to import 500 Opportunity records into a sandbox.
Why should the developer choose to use data Loader instead of Data Import Wizard?

• A.Data Loader runs from the developer's browser.
• B.Data Import Wizard does not support Opportunities.
• C.Data Loader automatically relates Opportunities to Accounts.
• D.Data Import Wizard can not import all 500 records.

答えを確認する

正解: