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Salesforce Plat-Dev-301 Exam Syllabus Topics:

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

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Salesforce Certified Platform Developer II - Multiple Choice Sample Questions (Q140-Q145):

NEW QUESTION # 140
A developer is writing code that requires making callouts to an external web service.
Which scenario necessitates that the callout be made in an asynchronous method?

A. The callout could take longer than 60 seconds to complete.
B. The callouts will be made using the REST APL.
C. The callouts will be made in an Apex trigger.
D. Over 10 callouts will be made in a single transaction.

Answer: C

Explanation:
Callouts cannot be made from a synchronous context such as an Apex trigger because they might exceed the maximum execution time, leading to timeouts. Asynchronous methods, such as future or Queueable, are required to handle callouts from triggers.

NEW QUESTION # 141
A developer is trying to access org data from within a test class.
Which sObject type requires the test class to have the (seeAllData=true) annotation?

A. User
B. Profile
C. Report
D. RecordType

Answer: C

Explanation:
https://salesforce.stackexchange.com/questions/149110/when-is-it-appropriate-to-use-seealldata-true

NEW QUESTION # 142
A developer used custom settings to store some configuration data that changes occasionally. However, tests are now Failing in some of the sandboxes that were recently refreshed.
What should be done to eliminate this issue going forward?

A. Set the setting type on the custom setting to List.
B. Set the setting type on the custom setting to Hierarchy.
C. Replace custom settings with custom metadata.
D. Replace custom settings with static resources.

Answer: C

Explanation:
Replacing custom settings with custom metadata types is a good solution to ensure that test data is consistent across environments. Custom metadata types are deployable, and their records are available in test methods by default, unlike List Custom Settings which need to be manually recreated in each environment after a refresh.

NEW QUESTION # 143
A developer sees test failures in the sandbox but not in production. No code or metadata changes have been actively made to either environment since the sandbox was created.
Which consideration should be checked to resolve the issue?

A. Ensure the Apex classes are on the same API version.
B. Ensure the sandbox Is on the same release as production.
C. Ensure that Disable Parallel Apex Testing Is unchecked.
D. Ensure test classes are using SeeAllData = true.

Answer: B

Explanation:
If test failures are occurring in a sandbox but not in production and there have been no active code or metadata changes, it could be due to differences in the Salesforce release versions between the two environments. Sandboxes can be on preview instances which get upgraded to new releases before production instances. This can lead to differences in behavior and could affect test executions. Ensuring that both the sandbox and production are on the same release can resolve such issues. API version differences and parallel testing settings typically do not cause discrepancies if the code hasn't changed, and while using SeeAllData=true is generally not recommended due to its dependence on the organization's data, it's unlikely to be the cause if the issue is related to the environment rather than the data.
Sandbox Preview Instructions
Understand the Salesforce Release Process

NEW QUESTION # 144
When the code is executed, the callout is unsuccessful and the following error appears within the Developer Console:
System.CalloutException: Unauthorized endpoint
Which recommended approach should the developer implement
to resolve the callout exception?

A. Use the SetHeader() method to specify Basic Authentication,
B. Create a remote site setting configuration that includes the endpoint.
C. Annotate the getkRFCatalogContents method with @Future (Callout-true),
D. Change the access modifier for ERPCatalog from public to global.

Answer: B

Explanation:
The System.CalloutException with the message "Unauthorized endpoint" typically indicates that the endpoint to which the callout is being made has not been authorized in the Salesforce org's security settings. To resolve this, the developer must navigate to the Remote Site Settings in the Salesforce Setup and add the endpoint URL as a new remote site. This step is necessary to authorize the Salesforce org to send outbound callouts to that specific endpoint. Annotating with @Future(Callout=true) is necessary for making callouts from methods that perform DML operations, but it does not resolve endpoint authorization issues. Similarly, changing the access modifier or using SetHeader() for authentication would not address the unauthorized endpoint error.
Remote Site Settings
Apex Developer Guide: Making Callouts Using Apex

NEW QUESTION # 145
......

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