[2025年最新] 高合格率な最新無料CRT-450試験問題集アンサーを使おう
CRT-450知能問題集PDF！Salesforce CRT-450試験問セット
Salesforce CRT-450（Salesforce Certified Platform Developer I）は、Salesforceプラットフォームでカスタムアプリケーションの開発に関する専門知識を実証しようとする専門家向けに設計された高価値の認定試験です。認定試験は、ApexとVisualforceを使用してSalesforceプラットフォームでプログラムでアプリケーションを構築した経験がある開発者を対象としています。認定試験では、カスタムアプリケーションの設計と構築における開発者の知識とスキル、およびSalesforce開発ツールを効果的に使用する能力を検証します。
Salesforce CRT-450認定試験は、Salesforceプラットフォームでカスタムアプリケーションを開発するスキルと知識を検証したい専門家にとって絶好の機会です。この認定を取得することにより、専門家はSalesforce Technologiesの専門知識を示し、キャリアの見通しを改善できます。適切な準備とリソースにより、Salesforce CRT-450試験に合格することは、意欲的なSalesforce開発者にとって達成可能な目標となります。
質問 # 28
What would a developer do to update a picklist field on related Opportunity records when a modification to the associated Account record is detected?
- A. Create a workflow rule with a field update.
- B. Create a process with Process Builder.
- C. Create a Visualforce page.
- D. Create a Lightning Component.
正解：B
質問 # 29
In terms of the MVC paradigm, what are two advantages of implementing the layer of a Salesforce application using Aura Component-based development over Visualforce? Choose 2 answers
- A. Automatic code generation
- B. Self-contained and reusable units of an application
- C. Server-side run-time debugging
- D. Rich component ecosystem
正解：B、D
質問 # 30
An Opportunity needs to have an amount rolled up from a custom object that is not in a master-detail relationship.
How can this be achieved?
- A. Use the Streaming API to create real-time roll-up summaries.
- B. Write a trigger on the Opportunity object and use tree sorting to sum the amount for all related child objects under the Opportunity.
- C. Use the Metadata API to create real-time roll-up summaries.
- D. Write a trigger on the child object and use an aggregate function to sum the amount for all related child objects under the Opportunity.
正解：D
解説：
Why a Trigger on the Child Object?
Since the relationship is not master-detail, a trigger on the child object can perform aggregate calculations and update the parent Opportunity.
Why Not Other Options?
A: Tree sorting is unnecessary and unrelated to roll-up summaries.
B and D: Neither Streaming API nor Metadata API is suitable for real-time roll-up calculations.
References:Custom Roll-Up Summaries:https://developer.salesforce.com/docs/atlas.en-us.apexcode.meta
/apexcode/apex_triggers_best_practices.htm
質問 # 31
A developer writes the following code:
What is the result of the debug statement?
- A. 2, 200
- B. 1, 150
- C. 2, 150
- D. 1, 100
正解：C
質問 # 32
Universal Containers (UC) uses a custom object called Vendor. The Vendor custom object has a master-detail relationship with the standard Account object.
Based on some internal discussions, the UC administrator tried to change the master-detail relationship to a lookup relationship, but was not able to do so.
What is a possible reason that this change was not permitted?
- A. The organization wide default for the Vendor object is Public Read/Write.
- B. Some of the Vendor records have null for the Account field.
- C. The Account object does not allow changing a field type for a custom field.
- D. The Account object has a roll up summary field on the Vendor object.
正解：D
質問 # 33
Which approach should be used to provide test data for a test class?
- A. Query for existing records in the database.
- B. Use a test data factory class to create test data.
- C. Access data in @TestVisible class variables.
- D. Execute anonymous code blocks that create data.
正解：B
質問 # 34
Which code block returns the ListView of an Account object using the following debug statement? system.debug(controller.getListViewOptions() );
- A. ApexPages.StandardSetController controller = new ApexPages.StandardSetController( Database.getQueryLocator( 'SELECT Id FROM Account LIMIT 1'));
- B. ApexPages.StandardController controller = new ApexPages.StandardController( [SELECT Id FROM Account LIMIT 1]);
- C. ApexPages.StandardController controller = new ApexPages.StandardController( Database.getQueryLocator( 'SELECT Id FROM Account LIMIT 1'));
- D. ApexPages.StandardController controller = new ApexPages.StandardController( [SELECT Id FROM Account LIMIT 1]);
正解：A
質問 # 35
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 relies on existing data in the sandbox.
- B. The test method is calling an @future method.
- C. The test method does not use System.runAs to execute as a specific user.
- D. The test method has a syntax error in the code.
正解：A
解説：
Apex test methods should not depend on existing data in the sandbox, because they may not have access to the same data when they run in a different environment, such as production. Test methods should create their own test data, or use the @testSetup annotation to create common test data for all test methods in a class12. The Execute Anonymous tool runs the code in the context of the current user and the current data, so it may not reproduce the same behavior as the test method3. References:
* Get Started with Apex Unit Tests Unit | Salesforce Trailhead
* Using Test Setup Methods | Apex Developer Guide - Salesforce Developers
* Test Class | Apex Reference Guide | Salesforce Developers
質問 # 36
The Salesforce Administrator created a custom picklist field, Account_status_c, on the a Account object. This picklist has possible values of Inactive'' and Active?
As part of a new business process, management wants to ensure an opportunity record is created only for Accounts marked as "Active". A developer is asked to implement this business requirement.
Which two automation tools should be used to fulfill the business need?
Choose 2 answers
- A. Workflow Rules
- B. Process Builder
- C. Approval Process
- D. Salesforce Flow
正解：B、D
質問 # 37
A developer has a unit test that is failing. To identify the issue, the developer copies the code inside the test method and executes it via the Execute Anonymous Apex Tool. The code then executes without failing. Why did the unit test failed, but not the Execute Anonymous?
- A. The test method relies on existing data in the database
- B. The test method use a try/catch block
- C. The test method has a syntax error in the code.
- D. The test method calls an @future method.
正解：A
質問 # 38
Which statement generates a list of Leads and Contacts that have a field with the phrase 'ACME'?
- A. List<List <sObject>> searchList = (FIND "*ACME*" IN ALL FIELDS RETURNING Contact, Lead);
- B. Map <sObject> searchList = (FIND "*ACME*" IN ALL FIELDS RETURNING Contact, Lead);
- C. List<List < sObject>> searchList = (SELECT Name, ID FROM Contact, Lead WHERE Name like '%ACME%');
- D. List <sObject> searchList = (FIND "*ACME*" IN ALL FIELDS RETURNING Contact, Lead);
正解：A
質問 # 39
Universal Containers stores the availability date on each Line Item of an Order and Orders are only shipped when all of the Line Items are available. Which method should be used to calculate the estimated ship date for an Order?
- A. Use a CEILING formula on each of the Latest availability date fields.
- B. Use a Max Roll-Up Summary field on the Latest availability date fields.
- C. Use a DAYS formula on each of the availability date fields and a COUNT Roll-Up Summary field on the Order.
- D. Use a LATEST formula on each of the latest availability date fields.
正解：B
質問 # 40
Which two platform features align to the Controller portion of MVC architecture? (Choose two.)
- A. Workflow rules
- B. Date fields
- C. Process Builder actions
- D. Standard objects
正解：A、C
質問 # 41
Given the following Anonymous Block:
Which one do you like?
What should a developer consider for an environment that has over 10,000 Case records?
- A. The try/catch block will handle any DML exceptions thrown.
- B. The transaction will fail due to exceeding the governor limit.
- C. The try/catch block will handle exceptions thrown by governor limits.
- D. The transaction will succeed and changes will be committed.
正解：D
質問 # 42
A platform developer needs to write an apex method that will only perform an action if a record is assigned to a specific record type. Which two options allow the developer to dynamically determine the ID of the required record type by its name? Choose 2 answers
- A. Use the getrecordtypeinfosbydevelopername() method in the describesobjectresult class
- B. Make an outbound web services call to the SOAP API
- C. Hardcore the ID as a constant in an apex class
- D. Execute a SOQL query on the recordtype object
正解：A、D
質問 # 43
Which three code lines are required to create a Lightning component on a Visualforce page? Choose 3 answers
- A. <apex:slds/>
- B. $Lightning.useComponent
- C. <apex:includeLightning/>
- D. $Lightning.use
- E. $Lightning.createComponent
正解：C、D、E
解説：
To create a Lightning component on a Visualforce page, you need to use the Lightning Components for Visualforce JavaScript library, which is included by the apex:includeLightning/ tag. This library provides the
$Lightning object, which has two methods: $Lightning.use and $Lightning.createComponent. The
$Lightning.use method references a Lightning dependency app that declares the component dependencies. The
$Lightning.createComponent method creates an instance of the component and renders it on the page. See Use Lightning Components in Visualforce Pages1 for more details. References: 1: Use Lightning Components in Visualforce Pages | Lightning Aura Components Developer Guide | Salesforce Developers(https://developer.salesforce.com/docs/atlas.en-us.lightning.meta/lightning/components_visualforce.h
質問 # 44
A company wants to create an employee rating program that allows employees to rate each other. An employee's average rating must be displayed on the employee record. Employees must be able to create rating records, but are not allowed to create employee records.
Which two actions should a developer take to accomplish this task? (Choose two.)
- A. Create a lookup relationship between the Rating and Employee object.
- B. Create a roll-up summary field on the Employee and use AVG to calculate the average rating score.
- C. Create a trigger on the Rating object that updates a fields on the Employee object.
- D. Create a master-detail relationship between the Rating and Employee objects.
正解：B、D
質問 # 45
A developer must troubleshoot to pinpoint the causes of performance issues when a custom page loads in their org.
Which tool should the developer use to troubleshoot query performance?
- A. AppExchange
- B. Setup Menu
- C. Developer Console
- D. Visual Studio Code IDE
正解：C
解説：
To troubleshoot query performance issues:
Option B: Developer Console
Using Query Plan Tool:
Open Developer Console.
Go to the Query Editor.
Enter your SOQL query.
Click on "Explain" to see the query plan.
Reference:
"Use the Query Plan tool in the Developer Console to optimize and troubleshoot SOQL queries."
- Salesforce Developer Guide: Query Plan Tool
Why Other Options Are Incorrect:
Option A: Setup Menu does not provide tools for query performance.
Option C: Visual Studio Code IDE requires extensions and is less direct for query performance.
Option D: AppExchange is for finding apps, not for troubleshooting performance.
質問 # 46
Universal Containers wants to ensure that all new leads created in the system have a valid email address. They have already created a validation rule to enforce this requirement, but want to add an additional layer of validation using automation.
What would be the best solution for this requirement?
- A. Use an Approval Process to enforce the completion of a valid email address using an outbound message action.
- B. Use a custom Lightning Web component to make a callout to validate the fields on a third party system.
- C. Submit a REST API Callout with a JSON payload and validate the fields on a third party system
- D. Use a before-save Apex trigger on the Lead object to validate the email address and display an error message if it is invalid
正解：D
解説：
Before-save Apex Trigger:
This is the best solution because abefore-save triggerruns before the record is saved to the database, providing an opportunity to validate or modify the data.
In this case, the Apex trigger can validate the email address using a regular expression or a third-party API call to ensure the email address is valid. If the email is invalid, an error message can be displayed using addError().
Why not the other options?
A: Submit a REST API Callout with a JSON payload:
REST callouts are more complex and generally not recommended for simple validation tasks like email format validation. Additionally, callouts cannot be performed directly in a before-save trigger.
C: Use a custom Lightning Web Component (LWC):
LWCs are primarily for UI interactions and should not be used to enforce data validations that are server-side requirements.
D: Use an Approval Process:
Approval Processes are for managing the approval flow of records, not for real-time validations. They cannot enforce email validation directly.
References:
Apex Triggers Documentation
Trigger Context Variables
質問 # 47
Universal Container is building a recruiting app with an Applicant object that stores information about an individual person that represents a job. Each application may apply for more than one job.
What should a developer implement to represent that an applicant has applied for a job?
- A. Master-detail field from Applicant to Job
- B. Lookup field from Applicant to Job
- C. Junction object between Applicant and Job
- D. Formula field on Applicant that references Job
正解：A
質問 # 48
Which two practices should be used for processing records in a trigger? Choose 2 answers
- A. Use (callout=true) to update an external system
- B. Use a Map to reduce the number of SOQL calls
- C. Use @future methods to handle DML operations.
- D. Use a Set to ensure unique values in a query filter
正解：B、D
質問 # 49
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 Import Wizard does not support Opportunities.
- B. Data Loader automatically relates Opportunities to Accounts.
- C. Data Loader runs from the developer's browser.
- D. Data Import Wizard can not import all 500 records.
正解：A
質問 # 50
A developer is creating a test coverage for a class and needs to insert records to validate functionality. Which method annotation should be used to create records for every method in the test class?
- A. @isTest(SeeAllData=True)
- B. @TestSetup
- C. @PreTest
- D. @BeforeTest
正解：B
解説：
The @TestSetup annotation is used to create records for every method in the test class. This annotation allows you to create common test data that is available for all test methods in the class. The test setup method runs only once before any test methods in the class. This reduces the need to create the same records for every test method and improves the performance of the test class. The @BeforeTest annotation is not a valid annotation in Apex. The @isTest(SeeAllData=True) annotation is used to grant test classes and methods access to all data in the organization, not to create records. The @PreTest annotation is not a valid annotation in Apex. References: IsTest Annotation | Apex Developer Guide | Salesforce Developers, How to Write a Test Class in Salesforce? The Salesforce Developer Guide ..., IsTest Annotation in Salesforce - Automation Champion
質問 # 51
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2025年最新のCRT-450サンプル問題は頼もしいCRT-450テストエンジン：https://drive.google.com/open?id=11EzTieU8tC-r4sFu794zXGVcYUW0IMrw