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| Section | Weight | Objectives |
|---|---|---|
| Logic, Process Automation, and Integration | 27% | - REST/SOAP API, Platform Events, and external integrations - Complex business logic and automation design - Asynchronous Apex: future, queueable, batch, scheduled - Advanced Apex programming and transaction management |
| Advanced Developer Fundamentals | 15% | - Design and maintain scalable, reusable code - Apply security best practices in development - Work with localization, multi-currency, and global features |
| User Interface Development | 20% | - Build complex Lightning Web Components and Aura Components - Implement advanced Visualforce functionality - Optimize UI performance and usability |
| Performance and Data Management | 18% | - Governor limits optimization and best practices - Optimize queries and handle large data volumes - Data modeling and complex data operations |
| Testing, Debugging, and Deployment | 20% | - Deployment strategies, CI/CD, and change management - Advanced testing strategies and test frameworks - Debugging and error handling across layers |
>> Plat-Dev-301 Latest Test Answers <<
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NEW QUESTION # 120
Universal Containers is leading a development team that follows the source-driven development approach in Salesforce. As part of their continuous integration and delivery (CL/CD) process, they need to automatically deploy changes to multiple environments, including sandbox and production.
'Which mechanism or tool would best support their CI/CD pipeline in source-driven development?
Answer: D
Explanation:
Salesforce CLI with Salesforce DX supports source-driven development and is designed for continuous integration and delivery (CI/CD) processes. It enables developers to automate deployments across multiple environments, including sandbox and production.
NEW QUESTION # 121
A developer is debugging an Apex-based order creation process that has a requirement to have three savepoints, SP1, SP2, and 5P3 {created in order), before the final execution of the process.
During the final execution process, the developer has a routine to roll back to SP1 for a given condition. Once the condition is fixed, the code then calls 2 roll back to SP3 to continue with final execution. However, when the roll back to SP3 is called, a Funtime error occurs.
Why does the developer receive a runtime error?
Answer: C
Explanation:
Savepoints in Apex are markers within a transaction and rolling back to an earlier savepoint (SP1) invalidates any savepoints created after it. Thus, SP3 is invalidated when the code rolls back to SP1, causing a runtime error when a rollback to SP3 is attempted.
NEW QUESTION # 122
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?
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 # 123
Universal Containers analyzes a Lightning web component and its Apex controller class that retrieves a list of contacts associated with an account. The code snippets are as follows:
Based on the code snippets, what change should be made to display the contacts' mailing addresses in the Lightning web component?
Answer: A
Explanation:
To display the contacts' mailing addresses in the Lightning web component, both the SOQL query in the getAccountContacts method and the columns attribute in the JavaScript file of the component need to be updated. The query must include the MailingAddress field, and the JavaScript file must be modified to add this field to the columns shown in the lightning-datatable.
NEW QUESTION # 124
Which Salesforce feature allows a developer to see when a user last logged in to Salesforce if real-time notification is not required?
Answer: B
Explanation:
Event Monitoring Log provides the ability to track different types of events in Salesforce, including user logins. These logs can be used to determine the last login time of a user without the need for real-time notification.
NEW QUESTION # 125
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