Salesforce Plat-Dev-301 Fragen und Antworten, Salesforce Certified Platform Developer II - Multiple Choice Prüfungsfragen

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Salesforce Plat-Dev-301 Exam Syllabus Topics:

Section	Weight	Objectives
Topic 1: Logic, Process Automation, and Integration	27%	- Asynchronous Apex: future, queueable, batch, scheduled - Complex business logic and automation design - REST/SOAP API, Platform Events, and external integrations - Advanced Apex programming and transaction management
Topic 2: User Interface Development	20%	- Build complex Lightning Web Components and Aura Components - Optimize UI performance and usability - Implement advanced Visualforce functionality
Topic 3: Advanced Developer Fundamentals	15%	- Apply security best practices in development - Work with localization, multi-currency, and global features - Design and maintain scalable, reusable code
Topic 4: Performance and Data Management	18%	- Governor limits optimization and best practices - Optimize queries and handle large data volumes - Data modeling and complex data operations
Topic 5: Testing, Debugging, and Deployment	20%	- Advanced testing strategies and test frameworks - Deployment strategies, CI/CD, and change management - Debugging and error handling across layers

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Plat-Dev-301 Prüfungsfragen Prüfungsvorbereitungen, Plat-Dev-301 Fragen und Antworten, Salesforce Certified Platform Developer II - Multiple Choice

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Salesforce Certified Platform Developer II - Multiple Choice Plat-Dev-301 Prüfungsfragen mit Lösungen (Q167-Q172):

167. Frage
A developer built an Aura component for guests to self-register upon arrival at a front desk kiosk. Now the developer needs to create a component for the utility tray to alert users whenever a guest arrives at the front desk.
What should be used?

A. Component Event
B. DML Operation
C. Application Event
D. Changelog

Antwort: C

Begründung:
Application Events in Aura components are used for communication between components that are not in the same containment hierarchy. An application event to alert users about the arrival of a guest at the front desk is appropriate because it allows any component within the app to listen and respond to the event, regardless of where it is located in the component hierarchy.

168. Frage
Consider the following code snippet:

How should the <e-orders> component communicate to the <c-selected-orders component that an order has been selected by the user?

A. Create and fire a standard DOM event.
B. Create and dispatch a custom event,
C. Create and fire an application event.
D. Create and fire a component event.

Antwort: B

Begründung:
Create and dispatch a custom event. This approach allows LWC components to communicate effectively, maintaining component encapsulation and reusability.

169. Frage
A developer needs to store variables to control the style and behavior of a Lightning Web Component.
Which feature can be used to ensure that the variables are testable in both Production and all Sandboxes?

A. Custom setting
B. Custom variable
C. Custom object
D. Custom metadata

Antwort: D

Begründung:
Custom metadata types are the best feature for storing variables that control style and behavior of a Lightning Web Component. Unlike custom settings, custom metadata is deployable and testable in both Production and all Sandboxes.

170. Frage
A developer is tasked with ensuring that email addresses entered into the system for Contacts and for a custom object called survey Response c do not belong to a list of blocked domains.
The list of blocked domains is stored in a custom object for ease of maintenance by users. The survey Response c object is populated via a custom Visualforce page.
What is the optimal way to implement this?

A. Implement the logic in validation rules on the Contact and the Burvey Response_c Objects.
B. Implement the logic in an Apex trigger on Contact and also implement the logic within the custom Visualforce page controller.
C. Implement the logic in the custom Visualforce page controller and call "that method from an Apex trigger on Contact.
D. Implement the logic in a helper class that is called by an Apex trigger on Contact and from the custom Visualforce page controller.

Antwort: D

Begründung:
The optimal way to enforce the exclusion of blocked domains for email addresses entered into Contacts and a custom object is to use a helper class. The class can be called by an Apex trigger on the Contact object and from the controller of the custom Visualforce page used for the Survey Response. This centralizes the logic for maintainability and reusability.

171. Frage
A developer needs to implement a system audit feature that allows users, assigned to a custom profile named "Auditors", to perform searches against the historical records in the Account object. The developer must ensure the search is able to return history records that are between 6 and 12 months old.
Given the code below, which select statement should be inserted below as a valid way to retrieve the Account History records ranging from 6 to 12 months old?

A)

B)

C) D)

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

Antwort: B

Begründung:
Given the code snippet, the correct query to retrieve Account History records between 6 and 12 months old would be the one that includes a WHERE clause filtering records where the CreatedDate is greater than or equal to initialDate and less than or equal to endDate. Option B's statement does this correctly by using the >= and <= operators to define the range between initialDate (which is set to today's date minus 12 months) and endDate (set to today's date minus 6 months). Options A, C, and D either use incorrect comparison operators or compare against the wrong variables, resulting in an incorrect data set being returned.
Reference
SOQL Date Formats and Date Literals: SOQL and SOSL Reference Guide

172. Frage
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