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| Section | Weight | Objectives |
|---|---|---|
| Topic 1: Data Modeling and Management | 14% | - Handle large data volumes with indexing and partitioning - Implement custom metadata and custom settings - Design complex data models with relationships - Use schema builder and relationship queries |
| Topic 2: Salesforce Platform Fundamentals | 14% | - Implement sharing and access control - Understand the order of execution - Use Process Builder and Flow appropriately - Understand Salesforce architecture and Governor Limits |
| Topic 3: Apex Programming | 18% | - Use asynchronous Apex (future methods, queueable, batch) - Implement best practices for trigger logic - Design and implement integration patterns - Write and execute Apex triggers - Handle exceptions and implement error handling |
| Topic 4: Testing and Debugging | 14% | - Use Developer Console and debugging tools - Analyze debug logs and resolve issues - Implement mock implementations for testing - Write Apex test classes with proper coverage |
| Topic 5: Performance | 12% | - Identify and resolve performance bottlenecks - Optimize Apex and SOQL queries - Use caching mechanisms (Platform Cache, View State) - Implement bulkify patterns |
| Topic 6: Integration | 14% | - Implement OAuth 2.0 authentication flows - Handle integration errors and retry logic - Use Named Credentials and External Data Sources - Use REST API and SOAP API in Apex - Implement outbound messaging and callouts |
| Topic 7: Lightning Component Framework | 14% | - Implement inheritance using base components - Use component events and application events appropriately - Debug Lightning component issues using browser developer tools - Use @track decorator and reactive properties correctly - Use Lightning Data Service to perform CRUD operations |
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NEW QUESTION # 98
Which scenario requires a developer to use an Apex callout
Instead of Outbound Messaging?
Answer: B
Explanation:
The scenario that requires a developer to use an Apex callout instead of Outbound Messaging is when the target system uses a REST API. An Apex callout is a way of making an HTTP request from Apex code to an external endpoint, and receiving an HTTP response. An Apex callout can use any HTTP method, such as GET, POST, PUT, or DELETE, and can send and receive data in any format, such as JSON, XML, or plain text. An Apex callout can also handle authentication, headers, parameters, and error handling. A REST API is a web service that follows the REST (Representational State Transfer) principles, and uses HTTP methods and URIs to perform operations on resources. A REST API typically uses JSON as the data format, and supports various authentication schemes, such as OAuth or Basic Authentication. An Apex callout can interact with a REST API by sending HTTP requests with the appropriate method, URI, headers, parameters, and body, and parsing the HTTP response with the status code, headers, and body. An Outbound Messaging is a way of sending SOAP messages from Salesforce to an external endpoint, and receiving SOAP acknowledgments. An Outbound Messaging is triggered by a workflow rule, and can include up to 100 notifications in a single message. An Outbound Messaging uses the notifications() call and the WSDL (Web Services Description Language) to define the message structure and the endpoint URL. An Outbound Messaging does not support any HTTP method other than POST, and does not support any data format other than XML. An Outbound Messaging can only handle basic authentication, and does not support any other authentication scheme. An Outbound Messaging cannot interact with a REST API, as the REST API does not use SOAP messages, WSDL, or XML, and may require different HTTP methods, data formats, and authentication schemes. Therefore, the developer should use an Apex callout instead of Outbound Messaging when the target system uses a REST API. Reference: [Apex Web Services and Callouts], [REST API Developer Guide], [Outbound Messaging Implementation Guide]
NEW QUESTION # 99
What is the transaction limit for the number of DML statements allowed?
Answer: E
Explanation:
Explanation
Explanation/Reference:
Explanation:
Includes Approval functions, rollbacks/savepoints, and System.runAs
NEW QUESTION # 100
A developer writes the following code:
While testing the code, the developer receives the following error message: System.CalloutException : You have uncommitted work pending What should the developer do? (Choose two.)
Answer: A,D
NEW QUESTION # 101
A developer must create a custom pagination solution for accessing approximately 2000 records and displaying 50 records on each page. Data from Salesforce will be accessed via an API and not via Apex. How can the developer meet these requirements? Choose 2 answers
Answer: C,D
NEW QUESTION # 102
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:
A Continuation is a way of making long-running callouts from a Visualforce page without blocking the user interface or exceeding the governor limits. A Continuation can chain multiple callouts and return the responses to the same Visualforce page. A Continuation is suitable for this scenario because the billing and tax information callouts are dependent on each other and might take up to two minutes each. An HTTP REST callout is a synchronous callout that blocks the user interface and has a limit of 120 seconds. Using an HTTP REST callout for either or both of the callouts would not meet the requirements of displaying the information at the same time and avoiding timeout errors. Reference: [Continuation Class], [Callout Limits and Limitations]
NEW QUESTION # 103
......
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