Salesforce Developer Fundamentals Quiz

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Questions and Answers

What is a key consideration for a developer when testing a trigger on the Account object?

Validation rules do not affect trigger execution.
The trigger will perform only after all DML operations finish.
Duplicate rules execute immediately upon the trigger firing.
Roll-up summary fields can impact the parent record during Save. (correct)

Which approach should a developer take to ensure a smooth data upload of candidate updates?

Implement a before insert trigger to modify the records.
Upload the CSV to a related custom object for processing.
Change the PrimaryId_c field to a Unique definition.
Utilize a flow to handle record mapping during the upload. (correct)

How many total accounts will exist in the org after executing the provided code?

15
10
16 (correct)
5

Which method should a developer use to gain access to the standard price book while writing a test class for an OpportunityLineItem trigger?

Invoke the standardPriceBookId directly. (A) Signup and view all the answers

What characteristic of Duplicate Rules is crucial during the execution of a trigger?

They run once all DML operations are committed. (C) Signup and view all the answers

When testing trigger code, what should a developer keep in mind regarding the trigger execution?

Triggers can be affected by validation rules causing re-fires. (B) Signup and view all the answers

Which statement about Roll-up Summary Fields is accurate?

They can directly impact the parent record's Save process. (C) Signup and view all the answers

What action can optimize the data upload of candidates' information from a CSV file?

Prepare the CSV file with the correct mapping beforehand. (B) Signup and view all the answers

What method should be used to retrieve the standard price book ID in Salesforce?

Test.getStandardPriceBookId() (C) Signup and view all the answers

Which option allows the 'salary_c' field to function as a currency input in a Lightning component while adhering to field level permissions?

<lightning-input-field field-name='salary_c'></lightning-input-field> (C) Signup and view all the answers

What is the result of the code snippet inserting the same Account record 201 times?

0 Accounts are inserted. (D) Signup and view all the answers

Which statement is true regarding governor limits when using the execute() method in a Batchable interface?

The Apex governor limits are reset for each iteration of the execute() method. (D) Signup and view all the answers

How can a Lightning Component execute a complex SOQL query that joins two objects?

Invoke an Apex class with the method annotated as @AuraEnabled to perform the query. (A) Signup and view all the answers

Which two operations can affect the number of times a trigger can fire?

Utilizing recursive trigger logic without management. (C), Creating related records in the trigger context. (D) Signup and view all the answers

Which annotation is used to make a method accessible to Lightning components in Salesforce?

@AuraEnabled (A) Signup and view all the answers

What is the primary use of @TestVisible in Salesforce testing?

To allow test classes to access private members of the main class. (D) Signup and view all the answers

What is the correct SOQL query to find records for 'Universal Containers' specifically in the CompanyName field?

FIND 'Universal Containers' IN CompanyName Fields RETURNING lead(id, name), account (id, name), contact (id, name) (D) Signup and view all the answers

How can an Opportunity achieve a roll-up summary from a custom object not in a master-detail relationship?

Write a trigger on the Opportunity object and use an aggregate function to sum the amount for all related child objects. (A) Signup and view all the answers

Which statement accurately describes a feature in debug mode for flows?

DML operations will be rolled back when debugging ends. (B) Signup and view all the answers

What is the most efficient tool a developer should use to gather customer information when processing damaged or stolen credit cards?

Screen-based flow (D) Signup and view all the answers

Which Visualforce component should be used to display messages added by the `ApexPages.addMessage()` method?

<a href="apex:pageMessages/">apex:pageMessages/</a> (B) Signup and view all the answers

What method is used to fire an event in Aura application events that follows the publish-subscribe model?

fire() (D) Signup and view all the answers

When troubleshooting performance issues for a custom page, which should be the first step a developer should take?

Utilize the Salesforce Debug Logs to identify bottlenecks. (C) Signup and view all the answers

What is a limitation of using input variables of type `record` in a flow?

These variables cannot be passed into the flow. (A) Signup and view all the answers

Which syntax correctly specifies a controller and an extension in a Visualforce page?

<apex:page controller='Notice_c' extensions='myControllerExtension'> (C), <apex:page standardController='Notice_c' extensions='myControllerExtension'> (D) Signup and view all the answers

How does the Lightning Component framework improve the speed of solution implementation for developers?

By providing an Agile process with default steps (A) Signup and view all the answers

What feature in Visualforce allows users to edit multiple records using a list button?

Standard Controller with Custom List Controller extension (C) Signup and view all the answers

In what scenario is a Full Sandbox org most beneficial?

When many developers operate in separate orgs with identical configurations to production (D) Signup and view all the answers

What is the recommended approach for overriding the Edit button on a Contact in both Salesforce Classic and Lightning Experience?

A Visualforce page in Salesforce Classic and a Lightning page in Lightning Experience (D) Signup and view all the answers

Which code line correctly imports the `updateAccounts` method from the `AccountController` class into a Lightning web component?

import updateAccounts from '@salesforce/apex/AccountController.updateAccounts'; (A) Signup and view all the answers

For which components can a trace flag NOT be configured?

API call tracking (B) Signup and view all the answers

Which code snippet correctly defines CheckPaymentProcessor as a class that extends PaymentProcessor?

public class CheckPaymentProcessor extends PaymentProcessor { public void pay (Decimal amount) { // functional code here } } (C) Signup and view all the answers

Which declarative option is NOT appropriate for building the database layer in Salesforce?

Triggers (C) Signup and view all the answers

What would be the primary reason to use roll-up summaries in a Salesforce application?

To summarize related records and display totals (D) Signup and view all the answers

Which of the following combinations are valid declarative tools for process automation in Salesforce?

Custom objects and fields, Flows (B) Signup and view all the answers

What is the significance of using declarative development when building a new Salesforce application?

It allows for faster deployment and easier maintenance (D) Signup and view all the answers

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Study Notes

Developer Fundamentals

Use Opportunity.sobjectType.getDescribe().getRecordTypeInfos() to get a list of record types, and iterate through them until isDefaultRecordTypeMapping() is true.
@AuraEnabled annotation allows to create Apex classes that can be called from Lightning web components
public class CheckPaymentProcessor implements PaymentProcessor { public void pay (Decimal amount); } - This code implements the PaymentProcessor interface and creates a method named pay.
@TestVisible annotation makes a method accessible to the test class.
To create a currency input field that is viewable and editable only for users with the correct field level permissions use: <lightning-input-field field-name="salary_c"></lightning-input-field>.

Apex Fundamentals

Ensure that the Account object has a master-detail relationship to the Branch object.
Triggers fire multiple times during a transaction.
Duplicate rules are executed once all DML operations commit to the database.

Process Automation

Use Test.getStandardPriceBookId() to get the standard price book ID.
Use an aggregate function in a trigger on the Opportunity object to calculate a roll-up summary from a custom object that is not in a master-detail relationship.

User Interface

Use a Standard Controller with a Custom List Controller extension in order to allow users to edit multiple records at once.

Testing

Use the BISTest (SeeAllData=true) method allows access to the standard price book.

Salesforce Development Life Cycle

Full Sandbox is ideal to create the same configuration as the production org for a team of developers working on their individual orgs.
Ensure the PrimaryId_c custom field on the Candidate_c custom object is marked as an External Id.
Trigger execution can affect by before insert, after insert, before update, after update trigger events.
DML operations are going to be rolled back after debuging a flow is ended.

Lightning Web Components

fire() method is used to fire an event in Aura application events.
When using the Batchable interface the Apex governor limits are reset for each iteration of the execute() method.
To troubleshoot performance issues when a custom page loads, use System.debug().
Universal Containers can use Custom objects and fields, Roll-up summaries, and Relationships to build out the database layer for a Salesforce application.
Callouts to external systems are not executed when debugging a flow.
The developer should create a Screen-based flow to implement the functionality for a service agent to process damaged or stolen credit cards.
To create an account, the developer uses Account myAccount = new Account(Name = 'MyAccount'); to create an account object, then insert myAccount; inserts it into the database.
The loop using the do..while statement executes 9 times.
The loop creates 9 new accounts and inserts them into the database with names like 'New Account 1', 'New Account 2', etc.
There are 16 total accounts in the org, since the developer started with 5 and created 10 more.
The final account created is named New Account 10. The loop code increment the x variable up to 10 after each iteration. Therefore, the loop will execute 9 times (10 - 1 = 9), creating 9 new accounts.

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