Plat-Dev-301試験対策 & Plat-Dev-301資格復習テキスト

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Plat-Dev-301証明書を取得することは、すべての新人初心者が夢見るタスクです。それにより、リーダーの目で職場のエリートになるだけでなく、迅速な昇進と昇給を得ることができ、より良いビジネスに移行する機会があるかもしれません。 Salesforceあなたが学生であろうとオフィスワーカーであろうと、あなたはここで満足することができ、Plat-Dev-301試験トレントを選んだとしても後悔することはありません。我々JPNTestは成功した数十の候補者の何千ものを助けてきたために、その目的を達成。 Plat-Dev-301試験に合格し、夢のPlat-Dev-301のSalesforce Certified Platform Developer II - Multiple Choice認定を取得することは例外ではないと考えています。

Salesforce Plat-Dev-301 Exam Syllabus Topics:

Section	Objectives
Testing and Deployment	- Deployment lifecycle 1. Change sets and deployment tools 2. Version control and CI/CD concepts - Testing strategies 1. Test data creation and mocking 2. Code coverage and quality practices
Data Modeling and Management	- Advanced data modeling 1. Complex relationships and schema design 2. Large data volume considerations - Data access and security 1. Security enforcement in Apex 2. Sharing rules and Apex-managed sharing
Application Development	- Advanced Apex programming 1. Apex design patterns and best practices 2. Exception handling and debugging strategies 3. Dynamic Apex and metadata-driven development - Asynchronous processing 1. Batch Apex and Queueable Apex 2. Scheduled Apex 3. Future methods and limits considerations
Integration and APIs	- Platform events and messaging 1. Event-driven architecture 2. Change Data Capture concepts - External system integration 1. REST and SOAP API usage 2. Callouts from Apex

>> Plat-Dev-301試験対策 <<

ハイパスレートのPlat-Dev-301試験対策 & 合格スムーズPlat-Dev-301資格復習テキスト | 認定するPlat-Dev-301基礎訓練

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Salesforce Certified Platform Developer II - Multiple Choice 認定 Plat-Dev-301 試験問題 (Q71-Q76):

質問 # 71
Users report that a button on a custom Lightning web component (LWC) is not saving the data they enter. The button looks to be clicked, but the LWC simply sits there, seemingly doing nothing.
What should the developer use to ensure error messages are properly displayed?

A. Add a try-catch block surrounding the DML statement.
B. Add the <apex:messages/> tag to the component.
C. Use the Database method with a110rNone Set to false.
D. Add JavaScript and HTML to display an error message.

正解：D

解説：
To ensure error messages are properly displayed in a Lightning web component, the developer should use JavaScript to handle errors in the component's client-side code and use HTML to display the message on the UI. This can be combined with Apex exception handling for server-side operations.

質問 # 72
How should a developer assert that a trigger with an asynchronous process has successfully run?

A. Create all test data, use future in the rest class, then perform assertions.
B. Create all test data in the test class, invoke Test.startTest{} and Test.etopTaat {} and then perform assertions.
C. Insert records into Salesforce, use seeAllData=true, then perform assertions.
D. Create all test data in the test class, use system. runs {} to invoke the trigger, then perform assertions.

正解：B

解説：
Use Test.startTest() and Test.stopTest(). These methods ensure asynchronous code runs within test execution and allows for accurate assertions.

質問 # 73
An Apex trigger and Apex class increment a counter, Edit __C, any time the Case is changed.

A)

B)

C)

D)

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

正解：A

質問 # 74
Exhibit:

The test method above tests in Apex trigger that the developer knows will make a lot of queries when a lot of Accounts are simultaneously updated to be customers. The test method fails at the Line 20 because of too many SOQL queries. What is the correct way to fix this?

A. Add Test.startTest() before and Test.stopTest() after both Line 7 of the code and Line 20 of the code
B. Add Test.startTest() before Line 18 of the code and add Test.stopTest() after line 18 of the code
C. Replace most of the Apex Trigger with Process Builder processes to reduce the number of queries in the trigger
D. Change the DataFactory class to create fewer Accounts so that the number of queries in the trigger is reduced

正解：B

解説：
https://developer.salesforce.com/docs/atlas.en-us.apexcode.meta/apexcode/apex_testing_tools_start_stop_test.htm

質問 # 75
A Visuzlforce page loads slowly due to the large amount of data it displays.
Which strategy can a developer use to improve the performance?

A. Use Javascript to move data processing to the browser instead of the controller.
B. Use lazy loading to load the data on demand, instead of in the controller's constructor.
C. Use the transient keyword for the List variables used in the custom controller.
D. Use an <apex:actionPollar) in the page to load all of the data asynchronously.

正解：B

解説：
Lazy loading is a strategy to improve the performance of a Visualforce page that loads a large amount of data. By loading the data on demand, rather than in the controller's constructor, the initial page load is faster, and additional data is only loaded when necessary.

質問 # 76
......

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Plat-Dev-301資格復習テキスト: https://www.jpntest.com/shiken/Plat-Dev-301-mondaishu

ちなみに、JPNTest Plat-Dev-301の一部をクラウドストレージからダウンロードできます：https://drive.google.com/open?id=1K8F7xGsvlEVLM0ip11oyx6yQAs2ve7ux