ちなみに、Pass4Test 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=1fY8IKW401zku5rUE1Awv8do_sk--Ggjq
私たちのPlat-Dev-301学習教材を使用した人々は、私たちのPlat-Dev-301学習教材が非常にいいと考えていました。 あなたが私たちのPlat-Dev-301学習教材を購入すれば、真剣に検討してみると、試験に合格するだけで、簡単にPlat-Dev-301認定試験資格証明書を得ることができます。では、今すぐPlat-Dev-301の学習教材で試してみてください。 私たちのPlat-Dev-301学習教材を利用したら、後悔することはありません。
| Section | Weight | Objectives |
|---|---|---|
| Advanced Developer Fundamentals | 15% | - Apply security best practices in development - Design and maintain scalable, reusable code - Work with localization, multi-currency, and global features |
| Logic, Process Automation, and Integration | 27% | - REST/SOAP API, Platform Events, and external integrations - Asynchronous Apex: future, queueable, batch, scheduled - Advanced Apex programming and transaction management - Complex business logic and automation design |
| Performance and Data Management | 18% | - Optimize queries and handle large data volumes - Governor limits optimization and best practices - Data modeling and complex data operations |
| Testing, Debugging, and Deployment | 20% | - Advanced testing strategies and test frameworks - Debugging and error handling across layers - Deployment strategies, CI/CD, and change management |
| User Interface Development | 20% | - Optimize UI performance and usability - Build complex Lightning Web Components and Aura Components - Implement advanced Visualforce functionality |
あなたはSalesforceのPlat-Dev-301試験を準備しているとき、あなたの時間とお金を無駄にしないであなたに試験に一番有効な助けを提供するのは我々がSalesforceのPlat-Dev-301ソフトを作成する達成したい目標です。我々のソフトは多くの受験生にSalesforceのPlat-Dev-301試験に合格させました。我々の通過率はいくつ高くても、我々はあなたが試験に失敗したら全額で返金するのを保証します。これはあなたに安心で弊社の商品を購入させるためです。
質問 # 40
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)
正解：D
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 # 41
A developer notices the execution of all the test methods in a class takes a long time to run, due to the initial setup of all the test data that is needed to perform the tests. What should the developer do to speed up test execution?
正解：D
解説：
Using the @testSetup annotation to define a method that creates test data before the tests run can significantly speed up test execution by reducing the setup time for each test method in the class. This method runs once before any test method in the class and can be used by all test methods.
質問 # 42
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?
正解：B
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 # 43
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?
正解：C
解説：
https://developer.salesforce.com/docs/atlas.en-us.apexcode.meta/apexcode/apex_testing_tools_start_stop_test.htm
質問 # 44
When developing a Lightning web component, which setting displays lightninglayout-items im one column on small devices, such as mobile phones, and in two columns on tablet-size and desktop-size screens?
正解：D
解説：
To display lightning-layout-items in one column on small devices and in two columns on larger devices, you should set the size attribute to "12" for small devices and the medium-device-size attribute to "6". This ensures that on small devices each item takes the full width, and on medium or larger devices, items take up half the width.
質問 # 45
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Plat-Dev-301問題集無料: https://www.pass4test.jp/Plat-Dev-301.html
さらに、Pass4Test Plat-Dev-301ダンプの一部が現在無料で提供されています：https://drive.google.com/open?id=1fY8IKW401zku5rUE1Awv8do_sk--Ggjq