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Test PDI Pattern & Valid PDI Test Topics

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Valid PDI Test Topics | Online PDI Training

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Salesforce PDI or Platform Developer I (PDI) certification is an entry-level certification that validates a candidate's knowledge and skills in developing custom applications on the Salesforce platform. Platform Developer I (PDI) certification is designed for individuals who have experience in programming and developing applications using Apex and Visualforce.

Salesforce Platform Developer I (PDI) Sample Questions (Q168-Q173):

NEW QUESTION # 168
A custom object Trainer_ < has a lookup field to another custom object cym__ c.
Which SOQL query will get the record for the Viridian City Gym and all it's trainers?

A. SELECT Id, (SELECT Id FROM Trainer_c) FROM Gym__c WHERE Name = 'Viridian City Gym'
B. SELECT Id; (SELECT Id FROM Trainers_r) FROM Gym_ _c WHERE Name = 'Viridian City Gym'
C. SELECT ID FROM Trainer_c WHERE Gym__r.Name = 'Viridian City Gym'
D. SELECT Id, (SELECT Id FROM Trainers_c) FROM Gym_c WHERE Name - 'Viridian City Gym''

Answer: B

Explanation:
Given that Trainer__c has a lookup field to Gym__c, to retrieve the record for the 'Viridian City Gym' and all its trainers, the correct SOQL query is:
Option A:
SELECT Id, (SELECT Id FROM Trainers__r) FROM Gym__c WHERE Name = 'Viridian City Gym' Parent-to-Child Query (Subquery):
To retrieve child records (trainers) from the parent record (gym), you perform a subquery using the child relationship name.
Child Relationship Name:
For a lookup relationship, the child relationship name can be found in the relationship settings.
By default, if the lookup field on Trainer__c is Gym__c, the child relationship name is Trainers__r.
Query Breakdown:
SELECT Id, (SELECT Id FROM Trainers__r) FROM Gym__c WHERE Name = 'Viridian City Gym' Selects the Gym record and all related Trainers.
Why Other Options Are Incorrect:
Option B: (SELECT Id FROM Trainer__c)
Trainer__c is an object, not a relationship name, so the subquery is incorrect.
Option C: SELECT ID FROM Trainer__c WHERE Gym__r.Name = 'Viridian City Gym' This query retrieves Trainer records, not the Gym record and its trainers as specified.
Option D: (SELECT Id FROM Trainers__c)
Trainers__c is incorrect; the child relationship name should end with __r in subqueries.
Reference:
SOQL Relationships and Subqueries:
"To retrieve related child records, use a subquery in the SELECT clause."
- Salesforce SOQL and SOSL Reference: Relationship Queries
Conclusion:
Option A correctly retrieves the Gym record and all its related Trainer records using a parent-to-child subquery.

NEW QUESTION # 169
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. Fire a notification.
B. Update a property on the parent.
C. Call a method in the Apex controller.
D. Create a custom event.

Answer: D

NEW QUESTION # 170
A developer wants to import 500 Opportunity records into a sandbox.
Why should the developer choose to use Data Loader instead of Data Import Wizard?

A. Data Import Wizard can not import all 500 records,
B. Data Loader automatically relates Opportunities to Accounts.
C. Data Import Wizard does not support Opportunities.
D. Data Loader runs from the developer's browser.

Answer: C

Explanation:
* Why Data Loader?
* Data Loader supports all standard and custom objects, including Opportunities.
* It is suitable for importing large data volumes like 500 records.
* Why Not Data Import Wizard?
* The Data Import Wizard does not support all objects, such as Opportunities.
* Why Not Other Options?
* A: Data Loader does not automatically relate Opportunities to Accounts unless provided external IDs.
* B: Data Loader is a desktop application, not browser-based.
* D: The Data Import Wizard can handle more than 500 records for supported objects, but it doesn't support Opportunities.
* Data Loader Documentation: https://developer.salesforce.com/docs/atlas.en-us.dataLoader.meta
/dataLoader/
References:

NEW QUESTION # 171
A developer must implement a CheckPaymentProcessor class that provides check processing payment capabilities that adhere to what defined for payments in the PaymentProcessor interface. public interface PaymentProcessor { void pay(Decimal amount); } Which is the correct implementation to use the PaymentProcessor interface class?

A. Public class CheckPaymentProcessor implements PaymentProcessor {
public void pay(Decimal amount) {}
}
B. Public class CheckPaymentProcessor extends PaymentProcessor {
public void pay(Decimal amount);
}
C. Public class CheckPaymentProcessor extends PaymentProcessor {
public void pay(Decimal amount) {}
}
D. Public class CheckPaymentProcessor implements PaymentProcessor {
public void pay(Decimal amount);
}

Answer: D

NEW QUESTION # 172
What are two ways a developer can get the status of an enqueued job for a class that implements the queueable interface?
Choose 2 answers

A. View the Apex Jobs page
B. View the Apex Status page
C. Query the AsyncApexJob object
D. View the Apex Flex Queue

Answer: A,C

Explanation:
To get the status of an enqueued job for a class that implements the Queueable interface, a developer can:
Option C: View the Apex Jobs page
Correct Answer.
The Apex Jobs page in Salesforce Setup lists all asynchronous Apex jobs, including queueable jobs.
Developers can view the status, start time, and completion time of the job.
The AsyncApexJob object contains information about the status of asynchronous Apex jobs.
Developers can write a SOQL query to retrieve details about the queueable job using the job ID returned when the job was enqueued.
Example:
AsyncApexJob job = [SELECT Id, Status, NumberOfErrors FROM AsyncApexJob WHERE Id = :jobId]; The Apex Flex Queue is used for holding batch jobs that are waiting to be processed.
Queueable jobs are not placed in the Apex Flex Queue.
Option B: View the Apex Status page
Incorrect.
There is no specific "Apex Status" page.
This may refer to the Apex Jobs page.
Conclusion:
The two ways to get the status of an enqueued queueable job are C (Apex Jobs page) and D (Query the AsyncApexJob object).
Reference:
Monitor Asynchronous Apex
Option D: Query the AsyncApexJob object
Correct Answer.
AsyncApexJob Object
Incorrect Options:
Option A: View the Apex Flex Queue
Incorrect.

NEW QUESTION # 173
......

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