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Salesforce PDI Exam Syllabus Topics:

Section	Weight	Objectives
Logic and Process Automation	46%	- Flow and Process Automation - Apex Basics - Asynchronous Apex - Triggers
Testing, Debugging, and Deployment	12%	- Unit Testing in Apex - Debugging Techniques - Deployment Tools and Practices
User Interface	10%	- Lightning Web Components Overview - Lightning Component Basics
Data Modeling and Management	20%	- Data Management Tools - Relationships and Schema Design - Standard and Custom Objects
Salesforce Fundamentals	12%	- Data Model Basics - Salesforce Platform Architecture

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Salesforce Platform Developer I (PDI) Sample Questions (Q125-Q130):

NEW QUESTION # 125
What can used to delete components from production?

A. A change set deployment with a destructivechanges XML file
B. An ant migration tool deployment with destructivechanges xml file and the components to delete in the package .xml file
C. A change set deployment with the delete option checked
D. An ant migration tool deployment with a destructivechanges XML file and an empty package .xml file

Answer: D

NEW QUESTION # 126
A developer working on a time management application wants to make total hours for each timecard available to application users. A timecard entry has a Master-Detail relationship to a timecard.
Which approach should the developer use to accomplish this declaratively?

A. An Apex trigger that uses an Aggregate Query to calculate the hours for a given timecard and stores it in a custom field
B. A Visualforce page that calculates the total number of hours for a timecard and displays it on the page
C. A Roll-Up Summary field on the Timecard Object that calculates the total hours from timecard entries for that timecard
D. A Process Builder process that updates a field on the timecard when a timecard entry is created

Answer: C

NEW QUESTION # 127
A developer is creating an app that contains multiple Lightning web components.
One of the child components is used for navigation purposes. When a user clicks a button called Next in the child component, the parent component must be alerted so it can navigate to the next page.
How should this be accomplished?

A. Create a custom event,
B. Update a property on the parent.
C. Fire a notification.
D. Call a method in the Apex controller.

Answer: A

Explanation:
To notify the parent component from a child component when a button is clicked:
Option C: Create a custom event
Child Component:
// ChildComponent.js
handleClick() {
const nextEvent = new CustomEvent('next');
this.dispatchEvent(nextEvent);
}
Parent Component:

<c-child-component onnext={handleNext}></c-child-component>
javascript
Copy code
// ParentComponent.js
handleNext() {
// Navigate to the next page
}
Reference:
"To communicate up the component containment hierarchy, fire a custom event in the child component."
- Lightning Web Components Developer Guide: Communicate with Events
Why Other Options Are Incorrect:
Option A: Updating a property on the parent directly is not possible from the child.
Option B: "Fire a notification" is vague and not a standard mechanism.
Option D: Calling a method in the Apex controller does not facilitate child-to-parent communication within components.

NEW QUESTION # 128
What is a benefit of the lightning component framework?

A. More Centralized control via server-side logic
B. More pre-built components to replicate the salesforce look and feel
C. Better performance for custom Salesforce1 Mobile Apps
D. Better integration with Force.com sites

Answer: B

NEW QUESTION # 129
A developer creates a batch Apex job to update a large number of records, and receives reports of the job timing out and not completing.
What is the first step towards troubleshooting the issue?

A. Disable the batch job and recreate it with a smaller number of records.
B. Check the asynchronous job monitoring page to view the job status and logs.
C. Check the debug logs for the batch job.
D. Decrease the batch size to reduce the load on the system.

Answer: B

Explanation:
When troubleshooting batch Apex jobs:
* Asynchronous Job Monitoring:
* Navigate toSetup > Apex Jobsto view the status of the batch job.
* Provides information such as success, errors, and total execution time.
* This step is crucial to diagnose whether the issue is with system limits, batch size, or specific records.
* Debug Logs:
* After identifying the issue in the job monitoring page, use debug logs to pinpoint specific errors or bottlenecks.
* B. Check the debug logs for the batch job: Debug logs are a secondary step after checking the job status.
* C. Disable and recreate with fewer records: Premature without investigating the root cause.
* D. Decrease the batch size: Adjusting batch size is a solution but only after identifying the cause of the timeout.
References:Asynchronous Job Monitoring:https://help.salesforce.com/s/articleView?id=000331217&type=1 Debugging Apex:https://developer.salesforce.com/docs/atlas.en-us.apexcode.meta/apexcode/apex_debugging.
htm

NEW QUESTION # 130
......

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