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| Section | Weight | Objectives |
|---|---|---|
| Topic 1: Architecture | 18% | - Namespace and package management - Design patterns and Apex trigger frameworks - Governor limits and bulkification - Apex Enterprise Patterns |
| Topic 2: Integration | 15% | - External Services and Connect REST API - Platform Events and Change Data Capture - Named Credentials and authentication - REST and SOAP web services (Apex callouts) |
| Topic 3: Data Modeling | 12% | - Large data volumes considerations - External objects and data sources - Advanced object relationships and data modeling |
| Topic 4: Logic and Process Automation | 22% | - Dynamic Apex and SOQL/SOSL - Invocable Actions and Platform Events - Advanced Apex programming - Asynchronous Apex (Batch, Queueable, Future, Scheduled) |
| Topic 5: User Interface | 18% | - Lightning Web Components (LWC) advanced features - Aura Components - Visualforce advanced controllers - Lightning Data Service |
| Topic 6: Testing, Debugging, and Deployment | 15% | - Test data strategies and mocking - Debugging and performance profiling - Apex unit testing best practices - Deployment tools (SFDX, Metadata API) |
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NEW QUESTION # 168
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?
Answer: C
Explanation:
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.
NEW QUESTION # 169
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 # 170
A developer wrote a trigger on Opportunity that will update a custom Last Sold Date field on the Opportunity's Account whenever an Opportunity is closed. In the test class for the trigger, the assertion to validate the Last Sold Date field fails.
What might be causing the failed assertion?
Answer: D
Explanation:
The test class may not be re-querying the Account record after updating the Opportunity, which is necessary to verify the updated field values. If the test does not query the database to get the most recent data after the trigger runs, it will not see the changes made by the trigger.
NEW QUESTION # 171
A Visualforce page needs to make a callout to get billing information and tax information from two different REST endpoints. The information needs to be displayed to the user at the same time and the return value of the billing information contains the input for the tax information callout. Each endpoint might take up to two minutes to process.
How should a developer implement the callouts?
Answer: C
Explanation:
Using Continuation for both callouts is the optimal solution when you have long-running callouts in a Visualforce page, as it allows the page to wait for a long-running process without tying up server resources. The Continuation pattern is specifically designed for scenarios where the request-response cycle could exceed the timeout limits.
NEW QUESTION # 172
A developer wrote an Apex class to make several callouts to an external system.
If the URLs used in these callouts will change often, which feature should the developer use to minimize changes needed to the Apex class?
Answer: C
Explanation:
The correct feature to use is C, Named Credentials. Named Credentials are a secure way of storing the endpoint and authentication details for callouts to external services. When URLs change frequently, using Named Credentials allows you to manage the endpoint URL in one place without changing the Apex code.
Named Credentials
NEW QUESTION # 173
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