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Salesforce Plat-Dev-301 Exam Syllabus Topics:

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

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Plat-Dev-301 Prüfungsfragen, 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 (Q59-Q64):

59. Frage
Universal Containers ne=ds to integrate with several external systems. The process Is Initiated when a record Is created in Salesforce, The remote systems do not require Salesforce to wait for a response before continuing.
What is the recommended best solution to accomplish this?

A. Qutbound message
B. PushTopic event
C. Platform event
D. Trigger with HTTP callout

Antwort: C

Begründung:
Platform events provide a robust and scalable way to communicate changes and events from Salesforce to external systems, especially when there is no requirement for Salesforce to wait for a response. They are designed to support event-driven architectures and can handle high volumes of events that can be published and consumed by external systems. Outbound messages, on the other hand, are limited by the need for an acknowledgment response from the target system, which can introduce latency.

60. Frage
A company uses Dpportunities to track sales to their customers and their org has millions of Opportunities. They want to begin to track revenue over time through a related Revenue object.
As part of their initial implementation, they want to perform a one-time seeding of their data by automatically creating and populating Revenue records for Opportunities, based on complex logic.
They estimate that roughly 100,000 Opportunities will have Revenue records created and populated.
What is the optimal way to automate this?

A. Use system, acheduladeb() to schedule a patakape.Scheduleable class.
B. Use system, enqueuJob (| to invoke a gueusable class.
C. Use Database. =executeBatch() to invoke a Database. Batchable class.
D. Use Database. executeBatch () to invoke a Queueable class.

Antwort: C

Begründung:
For a one-time bulk operation on a large data set, using a Database.Batchable class is the best approach. This allows complex logic to be processed in manageable chunks and efficiently manages system resources.

61. Frage
A company has a custom object, Order__c, that has a custom picklist field, Status__c, with values of `"New', `"In Progress', or `"Fulfilled' and a lookup field, Contact__c, to Contact.
Which SOQL query will return a unique list of all the Contact records that have no `"Fulfilled' Orders?

A. SELECT Contact__c FROM Order__c WHERE Id NOT IN (SELECT Id FROM Order__c Where Status__c = 'Fulfilled')
B. SELECT Id FROM Contact WHERE Id NOT IN (SELECT Id FROM Order__c WHERE Status__c = 'Fulfilled')
C. SELECT Contact__c FROM Order__c WHERE Status__c <> 'Fulfilled'
D. SELECT Id FROM Contact WHERE Id NOT IN (SELECT Contact__c FROM Order__c WHERE Status__c = 'Fulfilled')

Antwort: D

Begründung:
The correct SOQL query to return a unique list of Contact records that have no 'Fulfilled' Orders is one that selects Ids from the Contact object where the Contact Id is not in the set of Contact Ids related to 'Fulfilled' Orders. This is done by a subquery that selects the Contact__c field from the Order__c records where the Status__c is 'Fulfilled'.

62. Frage
A developer wrote a test class that successfully asserts a trigger on Account, It fires and updates data correctly In a sandbox environment.
A Salesforce admin with a custom profile attempts to deploy this trigger via a change set into the production environment, but the test class falls with an Insufficient privileges error.
What should a developer do to fix the problem?

A. Verify that Test. startTest() Is not Inside a For loop in the test class,
B. Add seeallData=true to the test class to work within the sharing model for the productionenvironment.
C. Configure the production environment to enable"Run All Tests as Admin User."
D. Add System.runAs() to the test class to execute the trigger as a user with the correct objectpermissions.

Antwort: D

Begründung:
When a test class fails with an "Insufficient privileges" error during deployment, it indicates that the user profile under which the tests are being executed doesn't have the necessary permissions to perform the actions required by the test. In a sandbox, the test might have been running with a different set of permissions compared to the production environment.
By using System.runAs(), you can specify a user context in which the test should run, which allows you to simulate the appropriate permissions. For this to work, you need to create a User instance in your test class with the profile that has the necessary permissions and then enclose the logic of your test within a System.runAs() block with this user.
This is a preferred solution over seeAllData=true, which would give the test access to all data in the production environment, potentially leading to tests that are not isolated and thus less reliable. It's also preferred over changing organization-wide settings or relying on specific setup in test classes, such as making sure Test.startTest() is not inside a loop.
Salesforce Documentation on Using the runAs Method: Testing with the runAs Method Salesforce Help Article on System Permissions: Profiles and Permissions

63. Frage
An environment has two Apex triggers: an after-update trigger on Account and an after-update trigger on Contact.
The Account after-update trigger fires whenever an Account's address is updated, and it updates every associated Contact with that address. The Contact after-update trigger fires on every edit, and it updates every Campaign Member record related to the Contact with the Contact's state.
Consider the following: A mass update of 200 Account records' addresses, where each Account has 50 Contacts. Each Contact has one Campaign Member. This means there are 10,000 Contact records across the Accounts and 10,000 Campaign Member records across the contacts.
What will happen when the mass update occurs?

A. The mass update will fail, since the two triggers fire in the same context, thus exceeding the number of records processed by DML statements.
B. There will be no error, since each trigger fires within its own context and each trigger does not exceed the limit of the number of records processed by DML statements.
C. There will be no error and all updates will succeed, since the limit on the number of records processed by DML statements was not exceeded.
D. The mass update of Account address will succeed, but the Contact address updates will fail due to exceeding number of records processed by DML statements.

Antwort: A

Begründung:
In this scenario, the governor limit for DML statements (150 DML operations and 10,000 DML rows per transaction) will be exceeded because the updates will cascade across related objects, significantly multiplying the number of records processed.
Apex Developer Guide

64. Frage
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