Salesforce Plat-Dev-301 問題集

質問 1：
Universal Containers allows customers to log into a Salesforce Community and update their orders via a custom Visualforce page. Universal Containers' sales representatives can edit the orders on the same Visualforce page.
What should a developer use in an Apex test class to test that record sharing is enforced on the Visualforce page?
A. use System. profiles() to test as an administrator and a community user.
B. use System. runsAs () to test as an administrator and a community user.
C. use System. profiles=() to test as a sales rep and a community user.
D. use System. profiles1h=() to test as a sales rep and a community user.
正解：B
解説: (Topexam メンバーにのみ表示されます)

質問 2：
Refer to the code snippet below:

A custom object called Credit_Memo__c exists in a Salesforce environment. As part of a new feature development that retrieves and manipulates this type of record, the developer needs to ensure race conditions are prevented when a set of records are modified within an Apex transaction. In the preceding Apex code, how can the developer alter the query statement to use SOQL features to prevent race conditions within a transaction? A)

B)

C)

D)

A. Option A
B. Option C
C. Option D
D. Option B
正解：A
解説: (Topexam メンバーにのみ表示されます)

質問 3：
A developer is asked to build a solution that will automatically send an email to the customer when an Opportunity stage changes. The solution must scale to allow for 10,000 emails per day. The criteria to send the email should be evaluated after certain conditions are met.
What is the optimal way to accomplish this?
A. Use SingleEmailMessage() with an Apex trigger.
B. Use an Email Alert with Flow Builder.
C. Use a Workflow Email Alert.
D. Use MassEmailMEssage () With an Apex trigger.
正解：B
解説: (Topexam メンバーにのみ表示されます)

質問 4：
Refer to the exhibit

Users of this Visualforce page complain that the page does a full refresh every time the Search button Is pressed. What should the developer do to ensure that a partial refresh Is made so that only the section identified with opportunity List is re-drawn on the screen?
A. Implement the <apex:actionfunction> tag with immediate = true.
B. Enclose the DATA table within the <apex:actionRegion> tag.
C. Ensure the action method search returns null.
D. Implement the render attribute on the <apex:ccxmandButton> tag.
正解：D
解説: (Topexam メンバーにのみ表示されます)

質問 5：
A developer created a Lightning web component that uses a lightning-record-edit-form to collect information about Leads. Users complain that they only see one error message at a time about their input when trying to save a Lead record.
What is the recommended approach to perform validations on more than one field, and display multiple error messages simultaneously with minimal JavaScript intervention?
A. Validation rules
B. Apex trigger
C. Try/catch/finally block
D. External JavaScript library
正解：D
解説: (Topexam メンバーにのみ表示されます)

質問 6：
Consider the queries in the options below and the following Information:
* For these queries, assume that there are more than 200,000 Account records.
* These records Include soft-deleted records; that is, deleted records that are still in the Recycle Bin.
* There are two fields that are marked as External Id on the
Account. These fields are customer_Number_c and ERR_Key_ s.
Which two queries are optimized for large data volumes?
Choose 2 answers
A. SELECT Id FROM Account WHERE Name != ' 'AND IsDeleted = false
B. SELECT 1d FROM Accounts WHERE Name != 'AND Customer_Number_c- "ValueA'
C. SELECT Id FROM Account WHERE Name !- NULL
D. SELECT ID FROM Account WHRE id IN :aListVariable
正解：A,B
解説: (Topexam メンバーにのみ表示されます)

質問 7：
A developer wrote a test class that successfully asserts a trigger on Account, It fires and updates data correctly In a sandbox environment.
A Salesforce admin with a custom profile attempts to deploy this trigger via a change set into the production environment, but the test class falls with an Insufficient privileges error.
What should a developer do to fix the problem?
A. Add seeallData=true to the test class to work within the sharing model for the productionenvironment.
B. Configure the production environment to enable"Run All Tests as Admin User."
C. Add System.runAs() to the test class to execute the trigger as a user with the correct objectpermissions.
D. Verify that Test. startTest() Is not Inside a For loop in the test class,
正解：C
解説: (Topexam メンバーにのみ表示されます)

質問 8：
A company recently deployed a Visualforce page with a custom controller that has a data grid of information about Opportunities in the org. Users report that they receive a "Maximum view state size limit" error message under certain conditions.
According to Visualforce best practice, which three actions should the developer take to reduce the view state?
Choose 3 answers
A. Use the transient keyword in the Apex controller for variables that do not maintain state.
B. Use the private keyword in the controller for variables,
C. Refine any SOQL queries to return only data relevant to the page.
D. Use the final keyword in the controller for variables that will not change.
E. Use filters and pagination to reduce the amount of data.
正解：A,C,E