[Q69-Q89] 検証済みTVB-450問題集PDF資料 [2024]

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検証済みTVB-450問題集PDF資料 [2024]

最新のTVB-450実際の無料試験問題更新された151問あります


Salesforce TVB-450の試験では、Apexプログラミング、データモデリング、ユーザーインターフェイス開発など、さまざまなトピックに関する候補者をテストします。また、アプリケーションのセキュリティ、テスト、展開に関連するトピックもカバーしています。試験の完了は、開発者がSalesforceプラットフォームをしっかりと理解しており、ビジネス要件を満たすためにカスタムアプリケーションを設計および構築できることを示しています。


Salesforce TVB-450 認定試験の出題範囲：

トピック出題範囲
トピック 1
  • インターフェイスと継承
  • Apex でのデータの操作
トピック 2
  • Salesforce プラットフォームの基本
  • オブジェクト、フィールド、および関係
トピック 3
  • データ操作言語
  • データ アクセス セキュリティ
トピック 4
  • データ型、クラス、およびメソッド
  • 宣言型プロセスの自動化
トピック 5
  • 開発および展開ツール
  • テスト、コード カバレッジ、および展開
トピック 6
  • 数式および積み上げ集計フィールド
  • Salesforce プラットフォーム アーキテクチャ
トピック 7
  • 宣言型自動化と Apex Fundamentals
  • 制御フロー ステートメント
トピック 8
  • Apex トリガ、Visualforce、およびベスト プラクティス
  • 例外処理
トピック 9
  • Visualforce コントローラー
  • 実行順序の保存

 

質問 # 69
As a part of class implementation a developer must execute a SOQL query against a large data ser based on the contact object. The method implementation is as follows.

Which two methods are best practice to implement heap size control for the above code? (Choose 2 Answers)

  • A. Use the FOR UPDATE option on the SOQL query to lock down the records retrieved.
  • B. Use WHERE clauses on the SOQL query to reduce the number of records retrieved.
  • C. Use visual keyword when declaring the retrieve variable.
  • D. Use a SOQL FOR loop, to chunk the result set in batches of 200 records.

正解：C、D


質問 # 70
Universal Containers wants to assess the advantages of declarative development versus programmatic customization for specific use cases in its Salesforce implementation.
What are two characteristics of declarative development over programmatic customization?
Choose 2 answers

  • A. Declarative code logic does not require maintenance or review.
  • B. Declarative development has higher design limits and query limits.
  • C. Declarative development can be done using the Setup UI.
  • D. Declarative development does not require Apex test classes.

正解：C、D


質問 # 71
How many accounts will be inserted by the following block ofcode? for(Integer i = 0 ; i <
500; i++) { Account a = new Account(Name='New Account ' + i); insert a; }
* 0
87. Boolean odk;
Integer x;
if(abok=false;integer=x;){
X=1;
}elseif(abok=true;integer=x;){
X=2;
}elseif(abok!=null;integer=x;){
X=3;
)elseif{
X=4;}

  • A. X=9
  • B. X=4
  • C. X=10
  • D. X=8

正解：B


質問 # 72
A third-party vendor created an unmanaged Lightning web component. The Salesforce Administrator wishes to expose the component only on Record Page Layouts.
Which two actions should the developer take to accomplish this business objective?
Choose 2 answers

  • A. Specify lightningCommunity_Page_Layout as a target in the XML file.
  • B. Ensure isExposed is set to true on the XML file.
  • C. Specify lightning_RecordPage as a target in the XML file.
  • D. Specify lightningCommunity_Page as a target in the XML file.

正解：B、C


質問 # 73
Given the following trigger implementation:
trigger leadTrigger on Lead (before update){
final ID BUSINESS_RECORDTYPEID = '012500000009Qad';
for(Lead thisLead : Trigger.new){
if(thisLead.Company != null && thisLead.RecordTypeId != BUSINESS_RECORDTYPEID){ thisLead.RecordTypeId = BUSINESS_RECORDTYPEID;
}
}
}
The developer receives deployment errors every time a deployment is attempted from Sandbox to Production.
What should the developer do to ensure a successful deployment?

  • A. Ensure a record type with an ID of BUSINESS_RECORDTYPEID exists on Production prior to deployment.
  • B. Ensure BUSINESS_RECORDTYPEID is pushed as part of the deployment components.
  • C. Ensure BUSINESS_RECORDTYPEID is retrieved using Schema.Describe calls.
  • D. Ensure the deployment is validated by a System Admin user on Production.

正解：A


質問 # 74
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. Perform the DML using the Database.upsert() method
  • D. Use a try/catch with a custom exception class.

正解：B

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


質問 # 75
A developer needs to implement a custom SOAP Web Service that is used by an external Web Application. The developer chooses to Include helper methods that are not used by the Web Application In the Implementation of the Web Service Class.
Which code segment shows the correct declaration of the class and methods?
A)

B)

C)

D)

  • A. Option B
  • B. Option A
  • C. Option C
  • D. Option D

正解：C


質問 # 76
Which process automation should be used to send an outbound message without using Apex code?

  • A. Flow Builder
  • B. Workflow Rule
  • C. Process Builder
  • D. Approval Process

正解：B


質問 # 77
A developer needs an Apex method that can process Account or Contact records. Which method signature should the developer use?

  • A. Public void doWork(sObject theRecord)
  • B. Public void doWork(Account || Contatc)
  • C. Public void doWork(Record theRecord)
  • D. Public void doWork(Account Contact)

正解：A


質問 # 78
A developer is implementing an Apex class for a financial system. Within the class, the variables 'creditAmount' and 'debtAmount' should not be able to change once a value is assigned. In which two ways can the developer declare the variables to ensure their value can only be assigned one time? Choose 2 answers

  • A. Use the static keyword and assign its value in the class constructor.
  • B. Use the static keyword and assign its value in a static initializer.
  • C. Use the final keyword and assign its value when declaring the variable.
  • D. Use the final keyword and assign its value in the class constructor.

正解：C、D


質問 # 79
Universal Containers stores Orders and Line Items in Salesforce. For security reason, financial representatives are allowed to see information on the Order such as order amount, but they are not allowed to see the Line items on the Order. Which type of relationship should be used?

  • A. Master Detail
  • B. Lookup
  • C. Direct Lookup
  • D. Indirect lookup

正解：B


質問 # 80
Universal Containers has a support process that allows users to request support from its engineering team using a custom object, Engineering_Support__c.
Users should be able to associate multiple engineering_Support__c records to a single Opportunity record.
Additionally, aggregate Information about the Engineering_support__c records should be shown on the Opportunity record.
What should a developer Implement to support these requirements?

  • A. Master-detail field from Engineering_Support__c to Opportunity.
  • B. Lookup field from Engineering_support__c to Opportunity
  • C. Lookup field from Opportunity to Engineering_Support__c
  • D. Master-detail field from Opportunity to Engineering_Support__c

正解：A


質問 # 81
A developer creates a custom exception as shown below:
What are two ways the developer can fire the exception in Apex? Choose 2 answers

  • A. Throw new ParityException (parity does not match);
  • B. New ParityException (parity does not match);
  • C. Throw new parityException ( );
  • D. New ParityException( );

正解：A、C


質問 # 82
What are two use cases for executing Anonymous Apex code? Choose 2 answers

  • A. To schedule an Apex class to run periodically
  • B. To run a batch Apex class to update all Contacts
  • C. To delete 15,000 inactive Accounts In a single transaction after a deployment
  • D. To add unit test code coverage to an org

正解：A、B


質問 # 83
What should a developer use to fix a Lightning web component bug in a sandbox?

  • A. Force.com IDE
  • B. Developer Console
  • C. Execute Anonumous
  • D. VS Code

正解：D


質問 # 84
An org has two custom objects:
* Plan_c, that has a master-detail relationship to the Account object.
* Plan_item_c, that has a master-detail relationship to the plan_C object.
What should a developer use to create a Visualforce section in the Account page layout that displays all of the plan.. Account and all of the Plan_item_c records related to those plan_c records.

  • A. A standard controller with a custom controller
  • B. A custom controller by itself
  • C. A controller extension with a custom controller
  • D. A standard controller with a controller extension

正解：D


質問 # 85
Universal Container use a simple order Management app. On the Order Lines, the order line total is calculated by multiplying the item price with the quantity ordered. There is a Master-Detail relationship between the Order and the Order Lines object.
What is the practice to get the sum of all order line totals on the order header?

  • A. Declarative Roll-Up Summaries App
  • B. Apex Trigger
  • C. Roll-Up Summary Field
  • D. Process Builder

正解：C


質問 # 86
A developer needs to confirm that an Account trigger is working correctly without changing the organization's dat a. What would the developer do to test the Account trigger?

  • A. Use Deply from the Force.com IDE to deploy an 'insert Account' Apex class.
  • B. Use the Test menu on the developer Console to run all test classes for the account trigger.
  • C. Use the Open Execute Anonymous feature on the Developer Console to run an 'insert Account' DML statement.
  • D. Use the New button on the Salesforce Accounts Tab to create a new Account record.

正解：B


質問 # 87
A Lightning component has a wired property, searchResults, that stores a list of Opportunities. Which definition of the Apex method, to which the searchResults property is wired, should be used?

  • A. @AuraEnabled(cacheable=true)
    public static List<Opportunity> search(String term) { /* implementation*/ }
  • B. @AuraEnabled(cacheable=false)
    public List<Opportunity> search(String term) { /*implementation*/ }
  • C. @AuraEnabled(cacheable=true)
    public List<Opportunity> search(String term) { /*implementation*/ }
  • D. @AuraEnabled(cacheable=false)
    public static List<Opportunity> search(String term) { /*implementation*/ }

正解：A


質問 # 88
Which two statements are true about Getter and Setter methods as they relate to Visualforce?

  • A. Setter methods always have to be declared global.
  • B. Getter methods pass values from a controller to a page.
  • C. A corresponding Setter method is required for each Getter method.
  • D. There is no guarantee for the order in which Getter methods are called.

正解：B、C


質問 # 89
......


Salesforce TVB-450（プラットフォーム開発者のためのTrailhead Virtual Bootcamp）認定試験は、Salesforce開発の知識とスキルをテストする包括的な試験です。この試験は、Salesforceの強力なプラットフォームを使用して、カスタムアプリケーションを設計、開発、テスト、展開する能力を評価するように設計されています。プラットフォーム開発者Iとして、組織の独自のニーズを満たすカスタムソリューションを作成する責任があります。 Salesforce TVB-450認定試験は、認定されたSalesforceの専門家になるための旅の重要なステップです。

 

TVB-450認定概要最新のTVB-450PDF問題集はこちら：https://www.passtest.jp/Salesforce/TVB-450-shiken.html

無料TVB-450試験ブレーン問題集認定ガイド問題と解答：https://drive.google.com/open?id=1MqT-ndIKP8oHOCZKaxA9XeHmmTXg1b2V

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TVB-450 無料問題集