Salesforce Plat-Dev-301높은통과율시험덤프자료 & Plat-Dev-301합격보장가능시험

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Salesforce Plat-Dev-301 Exam Syllabus Topics:

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

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최신 Salesforce Developer Plat-Dev-301 무료샘플문제 (Q183-Q188):

질문 # 183
A company has an Apex process that makes multiple extensive database operations and web service callouts. The database processes and web services can take a long time to run and must be run sequentially.
How should the developer write this Apex code without running into governor limits and system limitations?

A. Use Queueable Apex to chain the jobs to run sequentially.
B. Use Apex Scheduler to schedule each process.
C. Use multiple 3zutuze methods for each process and callout.
D. Use Limits class to stop entire process once governor limits are reached.

정답：A

설명：
Queueable Apex is suitable for complex processes that require chaining jobs to run sequentially. It can handle long-running processes without hitting governor limits, as each chained job runs in a new transaction with its own set of governor limits.

질문 # 184
Refer to the component code and requirements below:

Requirements: 1. For mobile devices, the information should display in three rows. 2. For desktops and tablets, the information should display in a single row. Requirement 2 Is not displaying as desired. Which option has the correct component code to meet the requirements for desktops and tablets? A)

B)

C)

D)

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

정답：A

설명：
To meet the requirements specified for displaying information differently on mobile devices versus desktops and tablets, the developer needs to use Lightning Layout and Lightning Layout Item components with appropriate size attributes to control the layout based on the form factor.
Option A is correct because it sets the size attribute to "12" for desktop and tablet devices, which tells the framework to take the full width of the container, resulting in a single row. For mobile devices, it defaults to full width, which will stack the layout items vertically, resulting in three rows.
Options B, C, and D are incorrect because they either do not set the correct size attributes for desktops and tablets or do not maintain the proper structure that would result in a single row for these devices.
Lightning Design System on Grid System: Lightning Grid System
Lightning Web Components Documentation on Layout Components: Layout Components

질문 # 185
Recently, users notice that fields that were recently added for one department suddenly disappear without warning.
Which two statements are true regarding these issues and resolution?
Choose 2 answers

A. Page Layouts should never be deployed via Change Sets, as this causes Field-Level Security to be reset and fields to disappear.
B. A sandbox should be created to use as a unified testing environment instead of deploying Change Sets directly to production.
C. The administrators are deploying their own Change Sets, thus deleting each other's fields from the objects in production.
D. The administrators are deploying their own Change Sets over each other, thus replacing entire Page Layouts in production.

정답：B,D

설명：
Using a dedicated sandbox for testing before deployment can prevent issues like overwriting changes in production. When administrators deploy their own change sets without coordination, they might inadvertently overwrite each other's changes, including page layouts. Best Practices for Deployments with Change Sets

질문 # 186
A developer wrote the following method to find all the test accounts in the org:

What should be used to fix this failing test?

A. @isTest (SeeAllData=true) to access org data for the test
B. Test. fixsdSsarchReaulta [) method to set up expected data
C. Teat.loadData to set up expected data
D. @testsetup method to set up expected data

정답：B

설명：
https://developer.salesforce.com/docs/atlas.en-us.apexcode.meta/apexcode/apex_testing_SOSL.htm

질문 # 187
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 object
D. Custom metadata

정답：D

설명：
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.

질문 # 188
......

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