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| Section | Weight | Objectives |
|---|---|---|
| Topic 1: User Interface Development | 20% | - Build complex Lightning Web Components and Aura Components - Optimize UI performance and usability - Implement advanced Visualforce functionality |
| Topic 2: Testing, Debugging, and Deployment | 20% | - Deployment strategies, CI/CD, and change management - Debugging and error handling across layers - Advanced testing strategies and test frameworks |
| Topic 3: Logic, Process Automation, and Integration | 27% | - Advanced Apex programming and transaction management - Asynchronous Apex: future, queueable, batch, scheduled - REST/SOAP API, Platform Events, and external integrations - Complex business logic and automation design |
| Topic 4: Performance and Data Management | 18% | - Optimize queries and handle large data volumes - Data modeling and complex data operations - Governor limits optimization and best practices |
| Topic 5: Advanced Developer Fundamentals | 15% | - Design and maintain scalable, reusable code - Work with localization, multi-currency, and global features - Apply security best practices in development |
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NEW QUESTION # 187
A Visualforce page contains an industry select list and displays a table of Accounts that have a matching value in their Industry field.
When a user changes the value in the industry select list, the table of Accounts should be automatically updated to show the Accounts associated with the selected industry, What is the optimal way to implement this?
Answer: D
Explanation:
The <apex:actionSupport> component is designed to be used with another component to provide AJAX support. When the value of the industry select list changes, the <apex:actionSupport> can trigger an AJAX request to the server, causing the page to rerender the table of Accounts with the matching industry. This process occurs without a full page refresh, providing a smoother user experience.
Visualforce Developer Guide
NEW QUESTION # 188
Consider the above trigger intended to assign the Account to the manager of the Account's region, Which two changes should a developer make in this trigger to adhere to best practices?
Answer: B,C
Explanation:
Moving the SOQL query outside the loop prevents it from being executed multiple times, which can lead to hitting governor limits. The last line updating the accountList is indeed needed to save the changes made to the Account records, so removing it is not recommended. Instead, the query should be moved outside the loop and records should be collected in a map for efficiency, which is not one of the provided options. Reference:
Apex Developer Guide - Best Practices for Apex
NEW QUESTION # 189
Refer to the component code and requirements below:
Requirements: 1. For mobile devices, the information should display in three rows. 2. For desktops and tablets, the information should display in a single row. Requirement 2 Is not displaying as desired. Which option has the correct component code to meet the requirements for desktops and tablets? A)
B)
C)
D)
Answer: B
Explanation:
To meet the requirements specified for displaying information differently on mobile devices versus desktops and tablets, the developer needs to use Lightning Layout and Lightning Layout Item components with appropriate size attributes to control the layout based on the form factor.
Option A is correct because it sets the size attribute to "12" for desktop and tablet devices, which tells the framework to take the full width of the container, resulting in a single row. For mobile devices, it defaults to full width, which will stack the layout items vertically, resulting in three rows.
Options B, C, and D are incorrect because they either do not set the correct size attributes for desktops and tablets or do not maintain the proper structure that would result in a single row for these devices.
Lightning Design System on Grid System: Lightning Grid System
Lightning Web Components Documentation on Layout Components: Layout Components
NEW QUESTION # 190
Universal Containers stores user preferences in a Hierarchy Custom Setting, User_Prefs_c, with a Checkbox field, Show_Help_c. Company-level defaults are stored at the organizational level, but may be overridden at the user level. If a user has not overridden preferences, then the defaults should be used.
How should the Show_Help_c preference be retrieved for the current user?
Answer: D
Explanation:
To retrieve the Show_Help__c preference for the current user from a hierarchy custom setting, the getInstance() method should be used. This method retrieves the custom setting data for the user or the organization default if no user-specific setting is found.
NEW QUESTION # 191
Consider the queries in the options below and the following Information:
* For these queries, assume that there are more than 200,000 Account records.
* These records Include soft-deleted records; that is, deleted records that are still in the Recycle Bin.
* There are two fields that are marked as External Id on the
Account. These fields are customer_Number_c and ERR_Key_ s.
Which two queries are optimized for large data volumes?
Choose 2 answers
Answer: A,D
Explanation:
For optimizing queries, especially on large data volumes, it's recommended to use indexed fields such as External ID fields, which will make the queries selective. Among the options given:
B) is optimized because it is using the Customer_Number__c field, which is an External ID and hence indexed.
D) is also optimized because it filters out deleted records with IsDeleted = false and uses Name != ' ', which is likely to be selective.
Using indexed fields and filtering out unnecessary records helps in faster query execution on large data volumes.
Make SOQL Query Selective
Working with Very Large SOQL Queries
NEW QUESTION # 192
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