[2026年06月29日] 究極のPlat-Dev-301準備ガイド！無料最新のSalesforce練習テスト問題集
今すぐゲットせよ！高評価Salesforce Plat-Dev-301試験問題集
質問 # 43
Consider the Apex class below that defines a RemoteAction used on 2 Visualforce search page.
Which code snippet will assert that the remote action returned the correct Account? A)
B)
C)
D)
- A. Option A
- B. Option C
- C. Option D
- D. Option B
正解：B
解説：
The correct code snippet to assert that the remote action returned the correct Account is option C. This is because the getAccount method is a global static method within the MyRemoter class and can be directly called without needing to instantiate an object of the class.
質問 # 44
A developer wrote the following method to find all the test accounts in the org:
What should be used to fix this failing test?
- A. @testsetup method to set up expected data
- B. Teat.loadData to set up expected data
- C. @isTest (SeeAllData=true) to access org data for the test
- D. Test. fixsdSsarchReaulta [) method to set up expected data
正解：D
解説：
https://developer.salesforce.com/docs/atlas.en-us.apexcode.meta/apexcode/apex_testing_SOSL.htm
質問 # 45
A business currently has a process to manually upload orders from its external Order Management System (OMS) into Salesforce.
This is a labor intensive process since accounts must be exported out of Salesforce to get the IDs. The upload file must be updated with the correct account IDs to relate the orders to the corresponding accounts.
Which two recommendations should make this process more efficient?
Choose 2 answers
- A. Use the upsert wizard in the Data Loader to import the data.
- B. Use the insert wizard in the Data Loader to import the data.
- C. Identify unique fields on Order and Account and set them as External IDs.
- D. Ensure the data in the file is sorted by the order ID.
正解：A、C
解説：
Setting unique fields on related objects as External IDs allows for the creation of relationships during imports without needing Salesforce IDs. The upsert operation in Data Loader can then use these External IDs to relate records, which streamlines the process and avoids the need to export Salesforce IDs manually.
Data Loader Guide
質問 # 46
A developer needs to implement a historical Task reporting feature that allows users, assigned to a custom profile named "Auditors", to perform searches against the Tasks related to the Account object.
The developer must ensure the search is able to return Tasks that are between 12 and 24 months old. It should exclude any tasks which have been deleted, and include Tasks whether archived or not.
Given the following code, which select statement should be inserted at the placeholder as a valid way to retrieve the Tasks ranging from L2 to 24 months old?
A)
B)
C)
D)
- A. Option A
- B. Option C
- C. Option D
- D. Option B
正解：B
解説：
To retrieve Tasks that are between 12 and 24 months old, we need to use a SOQL query that filters based on the CreatedDate. The query must exclude deleted records and include both active and archived tasks. Since Tasks can be archived after a certain period (typically 12 months), we must ensure the query includes these as well.
Option C is correct because it uses ALL ROWS in the SOQL query, which includes both active and archived (soft-deleted) records. The query also correctly uses a range for CreatedDate to ensure it selects Tasks created between 12 to 24 months ago.
Option A is incorrect because it does not include the ALL ROWS keyword, which is necessary to include archived Tasks in the results.
Option B is incorrect because it only retrieves Tasks created in the last 12 months, not between 12 to 24 months ago.
Option D is incorrect because it does not filter Tasks based on their creation date correctly to include only those that are between 12 and 24 months old.
Salesforce Developer Documentation on SOQL and SOSL SOQL and SOSL Reference Salesforce Developer Documentation on Working with Archived Records: Working with Archived Records
質問 # 47
A company uses Dpportunities to track sales to their customers and their org has millions of Opportunities. They want to begin to track revenue over time through a related Revenue object.
As part of their initial implementation, they want to perform a one-time seeding of their data by automatically creating and populating Revenue records for Opportunities, based on complex logic.
They estimate that roughly 100,000 Opportunities will have Revenue records created and populated.
What is the optimal way to automate this?
- A. Use Database. executeBatch () to invoke a Queueable class.
- B. Use system, enqueuJob (| to invoke a gueusable class.
- C. Use Database. =executeBatch() to invoke a Database. Batchable class.
- D. Use system, acheduladeb() to schedule a patakape.Scheduleable class.
正解：C
解説：
For a one-time bulk operation on a large data set, using a Database.Batchable class is the best approach. This allows complex logic to be processed in manageable chunks and efficiently manages system resources.
質問 # 48
A developer is working on an integration between Salestorce and an external system. The integration requires sending a large amount of data to the external systern, which can cause long response times and timeouts.
To optimize the performance and avoid timeouts, which technique should be used?
- A. Increase the timeout limit in the callout options,
- B. Use the @future annotation to make the callout asynchronous.
- C. Implement an asynchronous callout using the Continuation class,
- D. Use a chained batch Apex to split the data into smaller batches.
正解：C
解説：
Implementing an asynchronous callout using the Continuation class is the optimal solution to handle long response times and avoid timeouts in Salesforce. It allows the Apex code to make a long-running request to an external service and free up the thread to serve other requests.
質問 # 49
Which two queries are selective SOQL queries and can be used for a large data set of 200,000 Account records?
Choose 2 answers
- A. SELECT Id FROM Account WHERE Name LIKE '!-NULL
- B. SELECT Id FRCM Account WHERE Name != ' '
- C. SELECT Id FRCM Account WHEP Name IN (List of Names) AND Customer_Number_c= 'ValueA
- D. SELECT Id FROM Account WHERE II IK (List of Account Ida)
正解：B、C
解説：
Selective queries in SOQL are optimized for performance. Query B is selective because it filters out empty names, which are likely to be less in number. Query C is selective if the list of names is small, and 'Customer_Number_c' is indexed or can be used as an external ID field. Working with Very Large SOQL Queries
質問 # 50
As part of point-to-point integration, a developer must call an external web service which, due to high demand, takes a long time to provide a response. As part of the request, the developer must collect key Inputs from the end user before making the callout. Which two elements should the developer use to Implement these business requirements?
Choose 2 answers
- A. Process Builder
- B. Apex method that returns a Continuation object
- C. Lightning web component
- D. Screen Flow
正解：B、C
解説：
For implementing business requirements that involve collecting key inputs from the end user before making a long-running callout, a combination of a Lightning web component and an Apex method that returns a Continuation object is ideal. The Lightning web component can be used to build a user-friendly interface to collect the inputs, and the Continuation object in Apex allows for managing the callout in an asynchronous way. This pattern prevents the user interface from freezing and provides a better user experience by allowing the callout to run in the background.
Apex Developer Guide - Asynchronous Callouts to Long-Running Web Services Lightning Web Components Developer Guide
質問 # 51
A developer has a Visualforce page that automatically assigns ewnership of an Account to a queue upon save. The page appears to correctly assign ownership, but an assertion validating the correct ownership fails.
What can cause this problem?
- A. The test class does not use the Bulk API for loading test data.
- B. The test class does not use the seeallData=true= annotation.
- C. The test class does not implement the Queueable interface.
- D. The test class does not retrieve the updated value from the database,
正解：D
解説：
If the test class does not retrieve the updated value from the database, it will not see any changes made by the page logic. This can cause assertions that check for those changes to fail. The test should query for the most recent value from the database after the operation that is supposed to update the value.
質問 # 52
Which method should be used to convert a Date to a String in the current user's locale?
- A. Date.paras
- B. Date. format
- C. String.format
- D. String.valueof
正解：B
解説：
The format method of the Date class is used to convert a Date to a String formatted in the current user's locale. This respects the locale settings of the user context under which the code is running, ensuring the date is represented in a way that is familiar to the user.
Apex Developer Guide
質問 # 53
In an organization that has multi-currency enabled, a developer Is tasked with building a Lighting component that displays the top ten Opportunities most recently accessed by the logged in user. The developer must ensure the Amount and LastModifiedDate field values are displayed according to the user's locale.
What is the most effective approach to ensure values displayed respect the user's locale settings?
- A. Use the FORMAT () function in the SOQL query.
- B. Use REGEX expressions to format the values retrieved via SOQL.
- C. Use a wrapper class to format the values retrieved via SOQL.
- D. Use the FOR VIEW clause in the SOQL query.
正解：A
解説：
In a multi-currency Salesforce organization, displaying currency amounts according to the user's locale is crucial for ensuring data clarity and relevance. To achieve this, developers can leverage Salesforce's built-in capabilities to format field values directly within SOQL queries. The FORMAT() function is particularly useful as it formats currency fields according to the organization's locale settings. By using this function in a SOQL query, developers can ensure that the Amount and LastModifiedDate fields are displayed correctly. This method is more effective and efficient than post-processing the values in Apex, which would be required if using wrapper classes or REGEX expressions. Additionally, using the FOR VIEW clause in a SOQL query will mark records as recently viewed, which does not format the fields as per the user's locale.
SOQL FORMAT Function
Working with Multi-Currency
質問 # 54
A developer creates a Lightning web component to allow a Contact to be quickly entered. However, error messages are not displayed.
Which component should the developer add to the form to display error messages?
- A. aura:messages
- B. apex:messages
- C. lightning-messages
- D. lightning-error
正解：C
解説：
The correct answer is B, lightning-messages. This Lightning Web Components (LWC) service component provides a way to display error messages that are generated during the processing of lightning-input-field components within a lightning-record-edit-form.
Display Error Messages
質問 # 55
Refer to the test method below:
The test method calls an @future method that increments the Number_of_Times_Viewed__c value. The assertion is failing because the Number of Times Viewed_c equals 0. What is the optimal way to fix this?
- A. Add Test.atartTeat() before and Teat.stopTest() after inser= acct.
- B. Add rest.staztTest() before and Test.stopTess() after AuditUcil.incrementViewed.
- C. Change the initialization to acct. Number_Of_Times_Viewed_c = 1.
- D. Change the assertion to system.asserciquals (0, acctAfter Number _Cf_Timea_Viewed__c).
正解：B
解説：
When a test method calls an @future method that performs DML operations, the changes made by the @future method won't be visible until after the Test.stopTest() is called. This method ensures that all asynchronous processes are completed before the test execution continues. Therefore, Test.startTest() should be before the call to the @future method and Test.stopTest() immediately after.
質問 # 56
As part of their quoting and ordering process, a company needs to send POFs to their document storage system's REST endpoint that supports OAuth 2.0. Each Salesforce user must be individually authenticated with the document storage system to send the PDF.
What is the optimal way for a developer to implement the authentication to the REST endpoint?
- A. Named Credential with an OAuth Authentication Provider
- B. Hierarchy Custom Setting with 2 password custom field
- C. Named Credential with Password Authentication
- D. Hierarchy Custom Setting with an OAuth token custom field
正解：A
解説：
Named Credentials with OAuth handle secure API calls. Individual authentication for each user with OAuth 2.0 is managed through Named Credentials.
質問 # 57
Universal Containers develops a Visualforce page that requires the inclusion of external JavaScript and C55 files. They want to ensure efficient loading and caching of the page.
Which feature should be utilized to achieve this goal?
- A. ActionFunction
- B. PageBlockTable
- C. RemoteAction
- D. Static resources
正解：D
解説：
Static resources are ideal for efficient loading and caching of external files in Visualforce. They allow bundling and minimizing HTTP requests.
質問 # 58
A developer sees test failures in the sandbox but not in production. No code or metadata changes have been actively made to either environment since the sandbox was created.
Which consideration should be checked to resolve the issue?
- A. Ensure test classes are using SeeAllData = true.
- B. Ensure that Disable Parallel Apex Testing Is unchecked.
- C. Ensure the sandbox Is on the same release as production.
- D. Ensure the Apex classes are on the same API version.
正解：C
解説：
If test failures are occurring in a sandbox but not in production and there have been no active code or metadata changes, it could be due to differences in the Salesforce release versions between the two environments. Sandboxes can be on preview instances which get upgraded to new releases before production instances. This can lead to differences in behavior and could affect test executions. Ensuring that both the sandbox and production are on the same release can resolve such issues. API version differences and parallel testing settings typically do not cause discrepancies if the code hasn't changed, and while using SeeAllData=true is generally not recommended due to its dependence on the organization's data, it's unlikely to be the cause if the issue is related to the environment rather than the data.
Sandbox Preview Instructions
Understand the Salesforce Release Process
質問 # 59
How can a developer efficiently incorporate multiple JavaScript libraries in an Aura component?
- A. Implement the libraries in separate helper files.
- B. Use CDNs with script attributes.
- C. Use JavaScript remoting and script tags.
- D. Join multiple assets from a static resource.
正解：D
解説：
For incorporating multiple JavaScript libraries in Aura components, the best practice is to join multiple assets into a single static resource. This approach is efficient and avoids issues with asynchronous loading and potential conflicts between libraries. Aura Components Developer Guide - Using External JavaScript Libraries
質問 # 60
Instead of waiting to send emails to support personnel directly from the finish method of a batch Apex process, Universal Containers wants to notify an external system in the event that an unhandled exception occurs.
What is the appropriate publish/subscribe logic to meet this requirement?
- A. No publishing is necessary. Have the external system subscribe to the BatchapexErrorEvent.
- B. Publish the error event using the addError method.
- C. Publish the error event using the Eventbus. publish () method.
- D. Publish the error event with a Flow.
正解：A
解説：
Use BatchApexErrorEvent for notifications. It's automatically triggered for unhandled exceptions in batch Apex. No need for manual publishing. External systems can subscribe to this event to receive notifications.
質問 # 61
A developer implemented a custom data table in a Lightning web component with filter functionality. However, users are submitting support tickets about long load times when the filters are changed. The component uses an Apex method that is called to query for records based on the selected filters.
What should the developer do to improve performance of the component?
- A. Use a selective SOQL query with a custom Index.
- B. Use SOSL to query the records on filter change.
- C. Use setstoraclel() in the Apex method to store the response In the client-side cache.
- D. Return all records into a list when the component is created and filter the array In JavaScript.
正解：A
解説：
When faced with performance issues in a Lightning Web Component (LWC) due to SOQL query load times, the optimal approach is often to improve the query's selectivity. This can be achieved by using a selective SOQL query with a custom index. Salesforce can create custom indexes to improve the performance of queries that cannot be optimized through standard indexing. When a query is selective, it can efficiently retrieve records from the database using the index, thus reducing the query execution time and speeding up the component's performance when filters are changed. The other options (returning all records, using SOSL, or client-side caching) do not directly address the root cause of the performance issue, which is the need for a more efficient database operation.
Make SOQL Query Selective
Use of Indexes in SOQL Queries
質問 # 62
When the sales team views an individual customer record, they need to see recent interactions for the customer. These interactions can be sales orders, phone calls, or Cases. The date range for recent interactions will be different for every customer record type.
How can this be accomplished?
- A. Use a Lightning component to query and display interactions based on record type that is passed in using a design:attribute from the Lightning page.
- B. Use batch Apex to query for the most recent interactions when the customer view screen is loaded.
- C. Use a dynamic form on the customer record page to display recent interactions.
- D. Use Lightning Flow to read the customer's record type, and then do a dynamic query for recent interactions and display on the View page.
正解：A
解説：
A Lightning component can dynamically query and display interactions based on the customer's record type. The component can receive the record type as a parameter and adjust the query accordingly, providing the required functionality without batch processing or additional configurations.
質問 # 63
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