100%合格率保証付きで最高のTVB-450試験でリアル問題PDFがある[2024年01月]
TVB-450問題集で2024年最新のSalesforce TVB-450試験問題
Salesforce TVB-450は、Salesforce Platform Developer Iの知識と専門知識を証明したいプロフェッショナル向けの認定試験です。この仮想ブートキャンプは、総合的なトレーニングと実践的な経験を提供し、試験の準備をするための支援をします。試験はオンラインで実施され、2時間以内に60問の多肢選択問題を解答する必要があります。
Salesforce TVB-450試験は、Apex、Visualforce、SOQL、SOSL、ガバナーリミット、Salesforce Lightningなど、Salesforce Platform Developer Iに関連する様々なトピックをカバーしています。これは、Salesforce開発コンセプトとベストプラクティスを徹底的に理解していることが必要な上級レベルの試験です。試験は、Salesforceプラットフォーム上でカスタムアプリケーションを設計、開発、テスト、展開する能力をテストするよう設計されています。
質問 # 45
Which statement is true about developing in a multi-tenant environment?
- A. Governor limits prevent apex from impactiong the performance of multiple tenants on the same instance
- B. Org-level data security controls which users can see data from multiple tenants on the same instance
- C. Global apex classes can be referenced from multiple tenants on the same instance
- D. Apex sharing controls access to records fomr multiple tenants on the same instance
正解：A
質問 # 46
Which two sfdx commands can be used to add testing data to a Developer sandbox?
- A. Forced: data:bulk:upsert
- B. Forced: data: object :upsert
- C. Forced: data:async:upsert
- D. Forced: data: tree: upsert
正解：A、D
質問 # 47
What is the maximum number of SOQL queries used by the following code? List<Account> aList = [SELECT Id FROM Account LIMIT 5]; for (Account a : aList){ List<Contact> cList = [SELECT Id FROM Contact WHERE AccountId = :a.Id); }
- A. 0
- B. 1
- C. 2
- D. 3
正解：A
質問 # 48
Which two are best practices when it comes to component and application event handling? (Choose two.)
- A. Try to use application events as opposed to component events.
- B. Use component events to communicate actions that should be handled at the application level.
- C. Reuse the event logic in a component bundle, by putting the logic in the helper.
- D. Handle low-level events in the event handler and re-fire them as higher-level events.
正解：C、D
質問 # 49
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.escapeSingleQuotes(ApexPages.currentPage() .getParameters(). get('url_param'))
- D. String.ValueOf(ApexPages.currentPage() .getParameters() .get('url_param'))
正解：B
質問 # 50
Universal Containers recently transitioned from Classic to Lighting Experience. One of its business processes requires certain value from the opportunity object to be sent via HTTP REST callout to its external order management system based on a user-initiated action on the opportunity page. Example values are as follow Name Amount Account Which two methods should the developer implement to fulfill the business requirement? (Choose 2 answers)
- A. Create an after update trigger on the Opportunity object that calls a helper method using @Future(Callout=true) to perform the HTTP REST callout.
- B. Create a Process Builder on the Opportunity object that executes an Apex immediate action to perform the HTTP REST callout whenever the Opportunity is updated.
- C. Create a Lightning component that performs the HTTP REST callout, and use a Lightning Action to expose the component on the Opportunity detail page.
- D. Create a Visualforce page that performs the HTTP REST callout, and use a Visualforce quick action to expose the component on the Opportunity detail page.
正解：A、C
質問 # 51
When importing and exporting data into Salesforce, which two statements are true?
Choose 2 answers
- A. Developer and Developer Pro sandboxes have different storage limits.
- B. Data import wizard is a client application provided by Salesforce.
- C. Bulk API can be used to import large data volumes in development environments without bypassing the storage limits.
- D. Bulk API can be used to bypass the storage limits when importing large data volumes in development environments.
正解：A、B
質問 # 52
Which two examples above use the system. debug statements to correctly display the results from the SOQL aggregate queries? Choose 2 answers
- A. Example 2
- B. Example 1
- C. Example 4
- D. Example 3
正解：A、D
質問 # 53
What is the result of the following code snippet?
- A. 200 Accounts are inserted.
- B. 1 Account is inserted.
- C. 201 Accounts are inserted.
- D. 0 Accounts are inserted.
正解：D
質問 # 54
Universal Containers has large number of custom applications that were built using a third-party javaScript framework and exposed using Visualforce pages. The Company wants to update these applications to apply styling that resembles the look and feel of Lightning Experience. What should the developer do to fulfill the business request in the quickest and most effective manner?
- A. Rewrite all Visualforce pages asLightning components.
- B. Set the attribute enableLightning to true in the definition.
- C. Enable Available for Lightning Experience, Lightning Communities, and the mobile app on Visualforce pages used by the custom application.
- D. Incorporate the Salesforce Lightning Design System CSS stylesheet into the JavaScript applications.
正解：D
質問 # 55
Which action may cause triggers to fire?
- A. Renaming or replacing a picklist entry
- B. Changing a user's default division when the transfer division option is checked
- C. Cascading delete operations
- D. Updates to Feed Items
正解：D
質問 # 56
Which two statements are true about using the @testSetup annotation in an Apex test class?
Choose 2 answers
- A. Qo The @testSetup annotation is not supported when the GisTest(SeeAllData=True) annotation is used.
- B. A method defined with the @testSetup annotation executes once for each test method in the test class and counts towards system limits.
- C. Records created in the test setup method cannot be updated in individual test methods.
- D. Test data is inserted once for all test methods in a class.
正解：A、B
質問 # 57
Which code statement includes an Apex method named updateaccounts in the Class AccountCont rolles for use in a Lightning web component?
A)
B)
C)
D)
- A. Option D
- B. Option B
- C. Option A
- D. Option C
正解：A
質問 # 58
Refer to the following code snippet for an environment has more than 200 Accounts belonging to the Technology' industry:
When the code execution, which two events occur as a result of the Apex transaction?
When the code executes, which two events occur as a result of the Apex transaction?
Choose 2 answers
- A. The Apex transaction succeeds regardless of any uncaught exception and all processed accounts are updated.
- B. The Apex transaction fails with the following message. "SObject row was retrieved via SOQL without querying the requested field Account.Is.Tech__c''.
- C. If executed In a synchronous context, the apex transaction is likely to fall by exceeding the DHL governor limit.
- D. If executed in an asynchronous context, the apex transaction is likely to fall by exceeding the DML governor limit
正解：D
質問 # 59
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; }
- A. 0
- B. 1
- C. 2
- D. 3
正解：A
質問 # 60
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Salesforce TVB-450（Platform Developer IのTrailhead Virtual Bootcamp）認定試験は、Platform Developer I候補者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、候補者がSalesforceプラットフォームとそのさまざまなコンポーネントを理解しているかどうかを評価するために設計されています。これは、Salesforceプラットフォーム上でカスタムアプリケーションを開発する能力を示す業界で認められた認定試験です。
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