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100% PDI Correct Answers - Free PDF Quiz 2026 PDI: First-grade Platform Developer I (PDI) Dump Check

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Salesforce PDI Exam is an important certification for developers who work with the Salesforce platform. Platform Developer I (PDI) certification demonstrates to employers and clients that the developer has the knowledge and skills to develop custom solutions using the platform. In addition, the certification can lead to increased job opportunities and higher salaries for developers.

Salesforce Platform Developer I (PDI) Sample Questions (Q169-Q174):

NEW QUESTION # 169
Considering the following code snippet:

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:
Understanding the Issue:
The provided code attempts to update a list of Account records:
public static void insertAccounts(List<Account> theseAccounts) {
for(Account thisAccount : theseAccounts) {
if(thisAccount.website == null) {
thisAccount.website = 'https://www.demo.com';
}
}
update theseAccounts;
}
Problem: A DML exception is thrown when the update statement executes.
Possible Causes:
Some records in theseAccounts may have validation rule failures.
There may be null records within the theseAccounts list.
There could be fields that violate data integrity constraints.
Option Analysis:
Option A: Implement Change Data Capture
Modified Code:
public static void insertAccounts(List<Account> theseAccounts) {
for(Account thisAccount : theseAccounts) {
if(thisAccount.website == null) {
thisAccount.website = 'https://www.demo.com';
}
}
try {
update theseAccounts;
} catch (DmlException e) {
// Handle exception, e.g., log error or process partial successes
System.debug('A DML exception occurred: ' + e.getMessage());
}
}
Modified Code:
theseAccounts.removeAll(null);
Reference:
Why Not Suitable: CDC is unrelated to handling exceptions in Apex code. It does not help in gracefully handling DML exceptions.
Option B: Implement a try/catch block for the DML
Apex Developer Guide - Exception Handling
Apex Developer Guide - DmlException Class
Why Suitable:
Graceful Handling: By catching the DmlException, the code can handle the error without abruptly terminating the execution.
Logging and Recovery: Allows the developer to log the exception details and potentially implement recovery logic.
Option C: Implement the upsert DML statement
Why Not Suitable:
The issue is not about distinguishing between insert or update operations.
Using upsert does not inherently handle exceptions; DML exceptions can still occur.
It does not address handling exceptions gracefully.
Option D: Remove null items from the list of Accounts
Why Partially Suitable:
If null records are causing issues, removing them can prevent exceptions.
However, the question specifies a DML exception, not a NullPointerException.
Removing null items does not handle other potential DML exceptions (e.g., validation rule failures).
Conclusion:
Best Solution: Option B is the most appropriate choice.
Wrapping the DML statement in a try/catch block ensures that any exceptions thrown during the DML operation are caught and can be handled gracefully.
This approach aligns with best practices for exception handling in Apex.
Additional Recommendation:
Using Database.update with allOrNone=false:
Database.SaveResult[] results = Database.update(theseAccounts, false);
for (Database.SaveResult sr : results) {
if (!sr.isSuccess()) {
// Handle individual record failure
System.debug('Error updating record: ' + sr.getErrors()[0].getMessage());
}
}
Benefit: Allows partial success processing, handling errors at the record level.


NEW QUESTION # 170
A developer must create a Lightning component that allows users to input Contact record information to create a Contact record, including a Salary c custom field.
What should the developer use, along with a lightning-record-edit-form, so that Salary__c field functions as a currency input and is only viewable and editable by users that have the correct field level permissions on Salary _c?

Answer: B

Explanation:
* The requirement specifies that theSalary__cfield should function as acurrency inputand honor field- level security.
* Thelightning-input-fieldcomponent (Option C) automatically respects field-level permissions set in Salesforce and ensures theSalary__cfield is editable and viewable only by authorized users.
* Other options do not guarantee compliance with field-level security:
* Option A:<lightning-input-currency>does not enforce field-level security.
* Option B:<lightning-formatted-number>is read-only and cannot be used for editing.
* Option D:<lightning-input>requires custom logic for enforcing security.
:
Lightning Web Components Documentation
Field-Level Security Best Practices


NEW QUESTION # 171
Which three operations affect the number of times a trigger can fire?
Choose 3 answers

Answer: A,C,E


NEW QUESTION # 172
Consider the following code snippet for a Visualforce page that is launched using a Custom Button on the Account detail page layout.

When the Save button is pressed the developer must perform a complex validation that involves multiple objects and, upon success, redirect the user to another Visualforce page.
What can the developer use to meet this business requirement?

Answer: D


NEW QUESTION # 173
Which code statement includes an Apex method named updateaccounts in the Class AccountCont rolles for use in a Lightning web component?

Answer: A


NEW QUESTION # 174
......

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