Plat-Dev-301真題，Plat-Dev-301熱門考古題Testpdf長年以來一直向大家提供關于IT認證考試相關的學習資料。Salesforce的Plat-Dev-301題庫由世界各地的資深IT工程師組成的專業團隊制作完成，包含最新的考試試題，并附有全部正確的答案，幫助考生通過他們認為很難的Plat-Dev-301考試。這樣可以節約考生的時間和金錢，大多數的考生都選擇這樣的方式來獲得Plat-Dev-301認證，并節省了很多的時間和努力。您需要是在反復練習這份真題的基礎上，多思考，多總結，通過Plat-Dev-301考試就沒有問題了。 最新的 Salesforce Developer Plat-Dev-301 免費考試真題 (Q189-Q194):問題 #189
The head of recruiting at Universal Containers (UC) wants to provide all internal users the ability to search for open positions by role, department, and location via a new recruiting app. In addition to search, users of the app should be able to refer a friend, apply for a position, and review the status of their current submissions.
The app will be surfaced to UC's existing iOS and Android users via the standard mobile app that Salesforce provides. It has a custom user interface design and offline access is not required.
Given these requirements, what is the recommended approach to develop the app?
A. Lightning Web Components
B. Salesforce SDK
C. Lightning Experience Builder
D. Visualforce
答案：A
問題 #190
Consider the following code snippet:
As part of the deployment cycle, a developer creates the following test class:
When the test class runs, the assertion fails. Which change should the developer implement in the Apex test method to ensure the test method executes successfully? A)
B)
C)
D)
A. Option D
B. Option C
C. Option A
D. Option B
答案：D
解題說明：
To ensure that test methods execute successfully and are able to verify the behavior of the code, it is important to set up the proper context and to make sure that the test covers the expected outcomes accurately.
Option B is correct because enclosing the method call within Test.startTest() and Test.stopTest() ensures that any asynchronous operations are completed before the assertions are made. This is crucial when the code being tested is expected to perform operations that may run after the initial transaction, such as future methods, queueable jobs, or batch operations.
Options A, C, and D are incorrect because they do not address the issue of ensuring that all operations are completed before the assertion is made. Option A incorrectly suggests modifying the test setup code, while Options C and D suggest changes that are not related to the test execution flow.
Salesforce Developer Documentation on Testing Best Practices: Apex Testing Best Practices
問題 #191
A developer wrote an Apex class to make several callouts to an external system.
If the URLs used in these callouts will change often, which feature should the developer use to minimize changes needed to the Apex class?
A. Remote Site Settings
B. Named Credentials
C. Session Id
D. Connected Apps
答案：B
解題說明：
The correct feature to use is C, Named Credentials. Named Credentials are a secure way of storing the endpoint and authentication details for callouts to external services. When URLs change frequently, using Named Credentials allows you to manage the endpoint URL in one place without changing the Apex code.
Named Credentials
問題 #192
Salesforce users consistently receive a "Maximum trigger depth exceeded" error when saving an Account. How can a developer fix this error?
A. Modify the trigger to use the L=MultiThread=true annotation,
B. Convert the trigger to use the 3suzure annotation, and chain any subsequent trigger invocations to the Account object.
C. Use a helper class to set a Boolean to TRUE the first time a trigger 1s fired, and then modify the trigger ta only fire when the Boolean is FALSE.
D. Split the trigger logic into two separate triggers.
答案：C
解題說明：
A common solution to the "Maximum trigger depth exceeded" error is to use a static variable in a helper class. The variable acts as a switch to ensure the trigger logic only executes once per transaction, preventing recursive trigger calls.
問題 #193
Universal Charities (UC) uses Salesforce to collect electronic donations in the form of credit card deductions from individuals and corporations.
When a customer service agent enters the credit card information, it must be sent to 8 3rd-party payment processor for the donation to be processed, UC uses one payment processor for individuals and a different one for corporations.
What should a developer use to store the payment processor settings for the different payment processors, so that their system administrator can modify the settings once they are deployed, if needed?
A. Hierarchy custom setting
B. List custom setting
C. Custom metadata
D. Custom object
答案：C
解題說明：
Custom metadata types are ideal for storing payment processor settings that need to be changed by an administrator post-deployment. They can be deployed with managed packages and are upgradeable. Unlike Custom Objects, Custom Metadata Types also support a deployment with active data and can have their records retrieved via SOQL in Apex.
