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| Section | Weight | Objectives |
|---|---|---|
| Topic 1: Logic and Process Automation | 40% | - Formulas, roll-up summaries, and validation rules - SOQL, SOSL, and DML operations - Order of execution - Process Builder, Flow, and Workflow - Apex programming: classes, triggers, and methods - Governor limits and exception handling |
| Topic 2: Testing, Debugging, and Deployment | 17% | - Change management and best practices - Debugging tools and techniques - Deployment tools and processes - Code coverage requirements - Test methods and test data creation |
| Topic 3: Salesforce Fundamentals | 7% | - Development models and tools - Platform features and capabilities - Multi-tenant architecture |
| Topic 4: Data Modeling and Management | 13% | - Data security and sharing - Relationships and lookup filters - Data import/export and management - Custom objects and fields |
| Topic 5: User Interface | 23% | - UI security and accessibility - Lightning App Builder and components - Visualforce pages and controllers - Lightning Web Components |
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NEW QUESTION # 75 
When the code executes, a DML exception is thrown.
How should a developer modify the code to ensure exceptions are handled gracefully?
Answer: B
Explanation:
This is because when a DML exception is thrown, it means that the operation failed due to some error, such as a validation rule, a trigger, or a governor limit. If the exception is not handled, it will cause the entire transaction to roll back and display an unhandled exception message to the user. To handle exceptions gracefully, the developer should use a try/catch block to catch the exception and handle it in a way that does not disrupt the user experience, such as logging the error, displaying a custom message, or retrying the operation. References: The use of try/catch blocks for handling exceptions is covered under Apex basics on Trailhead1. You can also find more information on DML exceptions and how to handle them in the Apex Developer Guide2.
NEW QUESTION # 76
Assuming that naze is 8 String obtained by an <apex:inpotText> tag on 8 Visualforce page, which two SOQL queries performed are safe from SOQL injection?
'Choose 2 answers
Answer: C,D
NEW QUESTION # 77
A Next Best Action strategy uses an Enchance Element that invokes an Apex method to determine a discount level for a Contact, based on a number of factors. What is the correct definition of the Apex method?
Answer: C
NEW QUESTION # 78
What must the Controller for a Visualforce page utilize to override the Standard Opportunity view button?
Answer: C
NEW QUESTION # 79
Which Lightning Web Component custom event property settings enable the event to bubble up the containment hierarchy and cross the Shadow DOM boundary?
Answer: D
Explanation:
Lightning Web Components use the standard web component model, which includes the concept of Shadow DOM. Shadow DOM is a mechanism that isolates the component's internal DOM from the rest of the page, creating a boundary that prevents the component from accessing or being affected by the elements outside of its own subtree. However, this also means that events that are fired from within the component's shadow DOM do not propagate to the parent or ancestor components by default, unless they are configured to do so.
To configure how an event propagates, the component that dispatches the event can set two properties on the custom event object: bubbles and composed. The bubbles property determines whether the event can bubble up the containment hierarchy, which is the tree of components that contains the event source. The composed property determines whether the event can cross the shadow boundary, which is the boundary between the component's shadow DOM and the light DOM of its parent component.
The possible values and effects of these properties are:
* bubbles: true, composed: true: The event can bubble up the containment hierarchy and cross the shadow boundary. This means that the event can be handled by any component that is an ancestor of the event source, regardless of whether it is in the same shadow DOM or not. This is the most common setting for custom events that need to communicate with other components in the page.
* bubbles: true, composed: false: The event can bubble up the containment hierarchy, but cannot cross the shadow boundary. This means that the event can be handled by any component that is an ancestor of the event source, as long as it is in the same shadow DOM. This is useful for custom events that need to
* communicate with other components within the same shadow tree, but not outside of it.
* bubbles: false, composed: true: The event cannot bubble up the containment hierarchy, but can cross the shadow boundary. This means that the event can be handled only by the component that dispatched the event, or by the component that contains the event source in its light DOM. This is useful for custom events that need to communicate with the direct parent component, but not with any other ancestor components.
* bubbles: false, composed: false: The event cannot bubble up the containment hierarchy, nor can it cross the shadow boundary. This means that the event can be handled only by the component that dispatched the event. This is useful for custom events that do not need to communicate with any other components, but only with the event source itself.
Therefore, the correct answer is B. bubbles: true, composed: true, as this is the only setting that enables the event to bubble up the containment hierarchy and cross the shadow boundary.
References:
* Configure Event Propagation
* Handle Events
NEW QUESTION # 80
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