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| Section | Weight | Objectives |
|---|---|---|
| Topic 1: Testing, Debugging, and Deployment | 17% | - Unit testing in Apex - Debugging and deployment tools |
| Topic 2: Logic and Process Automation | 30% | - Triggers and Apex classes - Workflow, Process Builder, and Flow |
| Topic 3: User Interface | 10% | - User interface customization - Lightning Component basics |
| Topic 4: Data Modeling and Management | 20% | - Object schema design and relationships - Data import, export, and management tools |
| Topic 5: Apex Basics | 23% | - SOQL and SOSL queries - Apex syntax and core concepts |
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NEW QUESTION # 195
Which two statements are accurate regarding Apex classes and interfaces?
Choose 2 answers
Answer: B,D
NEW QUESTION # 196
What is a good practice for a developer to follow when writing a trigger? (Choose 2)
Answer: B,C
NEW QUESTION # 197
Universal Containers has a Visualforce page that displays a table of every Container_c. being ....... Is falling with a view state limit because some of the customers rent over 10,000 containers.
What should a developer change about the Visualforce page to help with the page load errors?
Answer: C
Explanation:
The correct answer is D because it uses the StandardSetController class, which provides built-in pagination support for Visualforce pages. The StandardSetController can be initialized with a list of sObjects, a SOQL statement, or the ID of a filter. It also provides methods to navigate through the pages of data, such as first(), last(), next(), and previous(). By using the StandardSetController, the developer can avoid hitting the view state limit, which is 135 KB for Visualforce pages. The view state is the amount of data that is persisted between page requests. It includes the component tree, component attributes, and controller state. The StandardSetController reduces the view state size by storing only the current page of data in the view state, and not the entire data set.
The other options are incorrect because they do not provide an efficient or reliable way to implement pagination for Visualforce pages. Option A uses lazy loading and a transient list variable, which are not recommended for pagination. Lazy loading is a technique that defers loading data until it is needed, which can improve the initial page load time, but it can also cause performance issues if the data set is large or complex.
A transient list variable is a variable that is not stored in the view state, which can reduce the view state size, but it can also cause data loss or inconsistency if the page is refreshed or redirected. Option B uses JavaScript remoting with SOQL offset, which is not a good practice for pagination. JavaScript remoting is a technique that allows Visualforce pages to communicate with Apex controllers using asynchronous JavaScript calls.
SOQL offset is a clause that allows skipping a specified number of rows in a query result. However, JavaScript remoting has some limitations, such as the maximum size of the response payload (15 MB) and the maximum number of remoting calls per page (10). SOQL offset also has some limitations, such as the maximum offset value (2,000) and the performance impact of skipping many rows. Option C implements pagination with an OffsetController, which is a custom controller that uses the SOQL offset clause to paginate the data. This option has the same drawbacks as option B, as it relies on the SOQL offset clause, which is not a scalable or performant solution for pagination. References:
* Trailhead: Pagination with a StandardSetController
* Trailhead: Visualforce View State
* Salesforce Developer Guide: StandardSetController Class
* [Salesforce Developer Guide: JavaScript Remoting for Visualforce]
* [Salesforce Developer Guide: SOQL OFFSET Clause]
NEW QUESTION # 198
What are two characteristics related to formulas?
Choose 2 answers
Answer: C,D
Explanation:
When working with formula fields in Salesforce, it's important to understand their characteristics and limitations.
Option A: Formulas are calculated at runtime and are not stored in the database.
True.
Formula fields are calculated dynamically whenever the record is accessed.
The value is not stored in the database; instead, it is computed on-the-fly based on the formula definition.
Formula fields can reference fields on related parent objects via lookup or master-detail relationships.
This allows formulas to display data from related records.
Formulas cannot reference themselves directly or indirectly.
Doing so would create a circular reference, which is not allowed.
If a field used in a formula is deleted, the formula becomes invalid.
If a field is edited (e.g., data type change), it may impact the formula's validity.
Reference:
Formula Fields Overview
Formula Fields Considerations
Option C: Formulas can reference values in related objects.
True.
Using Cross-Object Formulas
Advanced Formula Fields
Incorrect Options:
Option B: Formulas can reference themselves.
False.
Formula Field Limitations
Option D: Fields that are used in a formula field can be deleted or edited without editing the formula.
False.
Managing Formula Fields
Conclusion:
The correct characteristics related to formulas are A and C.
NEW QUESTION # 199
A software company uses the following objects and relationships:
* Case: to handle customer support issues
* Defect__c: a custom object to represent known issues with the company's software
* Case Defect__c a junction object between Case and Defect __c to represent that a defect is a cause of a customer issue Case and Defect__c have Private organization-wide defaults.
What should be done to share a specific Case_Defect__c record with a user?
Answer: B
NEW QUESTION # 200
......
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