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Salesforce Plat-Dev-301 Exam Syllabus Topics:

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

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Salesforce Certified Platform Developer II - Multiple Choice Sample Questions (Q77-Q82):

NEW QUESTION # 77
The Account object has a field, Audit_Code_c, that is used to specify what type of auditing the Account needs and a Lookup to User, zudizar_c, that is the assigned auditor. When an Account is initially created, the user specifies the Audit_Code c. Each User in the org has a unique text field, Audit_Code _e, that is used to automatically assign the correct user to the Account's Auditor_c field.

What should be changed to most optimize the code's efficiency? Choose 2 answers

A. Build a Map<Id, List<string>>of Account Id to audit codes.
B. Build a Map<string, List<Account>> of audit code to accounts.
C. Add a WHERE clause to the SOQL query to filter on audit codes.
D. Add an initial SOQL query to get all distinct audit codes.

Answer: B,C

Explanation:
To optimize the code's efficiency when assigning users to the Account's Auditor field based on the audit code, the following changes should be considered:
B . Building a map of audit code to accounts (Map<string, List<Account>>) would allow for efficient grouping of accounts by their audit code. This would make it easier to process accounts with the same audit code in a single operation, reducing the number of SOQL queries and DML operations needed.
D . Adding a WHERE clause to the SOQL query to filter on audit codes would limit the number of records returned by the query. This means the code only processes relevant User records with matching audit codes, thereby reducing the processing time and memory consumption.
Option A is not recommended because querying for all distinct audit codes without any context of the accounts being processed could be inefficient. Option C is less effective because it would involve creating a mapping of Account Ids to audit codes, which doesn't aid in the efficient assignment of auditor to accounts.
Salesforce Developer Guide on Maps: Apex Maps
Salesforce Developer Guide on SOQL Queries: SOQL SELECT Syntax

NEW QUESTION # 78
Which scenario requires a developer to use an Apex callout
Instead of Outbound Messaging?

A. The target system uses a REST APL.
B. The callout needs to be invoked from a flow.
C. The callout needs to be asynchronous.
D. The target system uses a SCAP API.

Answer: A

Explanation:
Outbound Messaging in Salesforce provides a way to send notifications from Salesforce to external applications using SOAP-based web service calls. However, when the target system requires interactions with RESTful web services, a developer must use an Apex callout. This is because Outbound Messaging is limited to SOAP and cannot directly interact with REST APIs. Apex callouts provide the flexibility to make HTTP requests to REST endpoints, thus allowing developers to programmatically interact with virtually any web service provided by external systems.
Apex Web Services and Callouts
Outbound Messaging

NEW QUESTION # 79
A user receives the generic "An internal server error has occurred" while interacting with a custom Lightning component.
What should the developer do to ensure a more meaningful message?

A. Add an onerror event handler to the tag.
B. Use platform events to process the error
C. Use an AuraHandledexception in a try-catch block.
D. Add an error-view component to the markup.

Answer: C

Explanation:
Use AuraHandledException in try-catch for custom errors. It enables sending meaningful, user-friendly error messages to the Lightning component.

NEW QUESTION # 80
A company has a web page that needs to get Account record information, such as name, website, and employee number. The Salesforce record 1D is known to the web page and it uses JavaScript to retrieve the account information.
Which method of integration is optimal?

A. REST API
B. SOAP API
C. Apex SOAP web service
D. Apex REST web service

Answer: A

Explanation:
For retrieving specific records using a known ID, the REST API is optimal due to its stateless, cacheable communications and lightweight structure. It's ideal for web applications that use JavaScript to make requests directly from the user's browser. Using the REST API, the web page can make a simple HTTP GET request to the Salesforce REST service endpoint and retrieve the account information in a format that's easily handled by JavaScript (typically JSON).
REST API Developer Guide

NEW QUESTION # 81
A developer is writing a Visualforce page that queries accounts in the system and presents a data table with the results. The users want to be able to filter the results based on up to five fields. However, the users want to pick the five fields to use as filter fields when they run the page.
Which Apex code feature is required to facilitate this solution?

A. variable binding
B. dynamic SOQL
C. Metadata APT
D. Streaming API

Answer: B

Explanation:
The requirement described in the question calls for a flexible way to query records based on user-selected fields. Dynamic SOQL is the perfect tool for this job as it allows the construction of a SOQL string at runtime, which can include any number of fields and filter conditions that are determined at the time the user interacts with the page. This enables the creation of a highly customizable query interface. A, B, and C are not suitable for this requirement as they serve different purposes: A (Streaming API) is for receiving real-time streams of data changes, B (Metadata API) is for managing the metadata of your Salesforce org, and C (variable binding) is used in Visualforce to bind data between the page and the controller but does not provide dynamic query capabilities.
Reference
Dynamic SOQL: Dynamic SOQL in Apex Developer Guide

NEW QUESTION # 82
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