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| Section | Weight | Objectives |
|---|---|---|
| Apex Programming | 18% | - Handle exceptions and implement error handling - Design and implement integration patterns - Write and execute Apex triggers - Implement best practices for trigger logic - Use asynchronous Apex (future methods, queueable, batch) |
| Testing and Debugging | 14% | - Write Apex test classes with proper coverage - Analyze debug logs and resolve issues - Implement mock implementations for testing - Use Developer Console and debugging tools |
| Performance | 12% | - Use caching mechanisms (Platform Cache, View State) - Implement bulkify patterns - Identify and resolve performance bottlenecks - Optimize Apex and SOQL queries |
| Salesforce Platform Fundamentals | 14% | - Implement sharing and access control - Use Process Builder and Flow appropriately - Understand the order of execution - Understand Salesforce architecture and Governor Limits |
| Data Modeling and Management | 14% | - Design complex data models with relationships - Implement custom metadata and custom settings - Use schema builder and relationship queries - Handle large data volumes with indexing and partitioning |
| Integration | 14% | - Use Named Credentials and External Data Sources - Implement outbound messaging and callouts - Use REST API and SOAP API in Apex - Implement OAuth 2.0 authentication flows - Handle integration errors and retry logic |
| Lightning Component Framework | 14% | - Use Lightning Data Service to perform CRUD operations - Use @track decorator and reactive properties correctly - Implement inheritance using base components - Debug Lightning component issues using browser developer tools - Use component events and application events appropriately |
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NEW QUESTION # 137
A company has code to update a Request and Request Lines and make a callout to their external ERP system's REST endpoint with the updated records.
The callousUtil.makeRestCallout fails with a "You have uncommitted work pending. Please commit or rollback before calling cut' error.
What should be done to address the problem?
Answer: B
Explanation:
The error occurs because DML operations were performed before a callout. To fix this, the callout should be made from an asynchronous method such as one annotated with @future(callout=true), which allows DML operations to be committed separately from the callout.
nces: Apex Developer Guide - Making Asynchronous Callouts
NEW QUESTION # 138
What are three reasons that a developer should write Jest tests for Lightning web components?
Choose 3 answers
Answer: A,B,C
NEW QUESTION # 139
A developer is creating a Lightning web component to display a calendar. The component will be used in multiple countries. In some locales, the first day of the week is a Monday, or a Saturday, or a Sunday. 'What should the developer do to ensure the calendar displays accurately for users in every locale?
Answer: A
NEW QUESTION # 140
A developer is building a Lightning web component that searches
for Contacts. The component must communicate the search
results to other unrelated Lightning web components, that are in
different DOM trees, when the search completes.
What should the developer do to implement the communication?
Answer: B
NEW QUESTION # 141
A company needs to automatically delete sensitive information after seven years.
This could delete almost a million records every day.
How can this be achieved?
Answer: B
Explanation:
The best way to achieve this is to schedule a batch Apex process to run every day that queries and deletes records older than seven years. Batch Apex allows the developer to process large sets of data in batches, which can handle up to 50 million records per execution. Batch Apex also supports scheduling, which allows the developer to specify the frequency and time of the execution. In this case, the developer can write a batch Apex class that implements the Database.Batchable and Schedulable interfaces, and query and delete the records that are older than seven years in the execute method. Scheduling an asynchronous process to query records older than seven years, and then recursively invoke itself in 1,000 record batches to delete them will not work, as it will hit the governor limits on the number of asynchronous jobs or the heap size. Using aggregate functions to query for records older than seven years, and then delete the aggregateResults objects will not work, as aggregateResults objects are read-only and cannot be deleted. Performing a SOSL statement to find records older than 7 years, and then delete the entire result set will not work, as SOSL does not support date literals or comparison operators, and the result set might exceed the DML limit of 10,000 records per transaction. Reference: [Batch Apex], [Schedulable Interface], [Apex Developer Guide]
NEW QUESTION # 142
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