493 questions total · 7pages · All types, answers revealed
A developer needs to execute a batch job every Sunday at midnight. Which interface must the scheduling class implement?
The Schedulable interface allows classes to be run at scheduled times using cron expressions.
Why this answer
Scheduled Apex requires implementing the Schedulable interface.
A developer is utilizing the Lightning Message Service (LMS) to facilitate communication between an Aura component and a Lightning Web Component. Which THREE steps are required to implement LMS successfully? (Choose THREE)
Correct because Message Channels are defined as metadata files in the force-app directory.
Why this answer
LMS requires defining a Message Channel metadata file, importing the channel in the component, and calling publish or subscribe APIs.
Which TWO methods are used to inspect sObject field metadata dynamically in Apex? Choose 2 options.
Returns a map of all sObject names to token types.
Why this answer
SObjectType.getDescribe() and Schema.getGlobalDescribe() are used for inspecting schema metadata.
A developer has written a Batch Apex class to process millions of records. During execution, some transactions fail due to temporary external web service timeouts. What is the standard behavior of Batch Apex when an unhandled exception occurs in a batch execution?
Failed chunks do not halt the entire job by default; other scopes continue to execute.
Why this answer
By default, if an unhandled exception occurs in the execute method of a batch class, that specific batch of records fails, and the batch job continues processing the remaining batches, logging the failure.
In the order of execution, when do record-triggered flows that are configured to run 'before' the record is saved execute?
Before-save flows run after before-save Apex triggers.
Why this answer
Record-triggered flows configured to run before the record is saved execute after the before-save triggers.
A developer is building an Aura component and needs to include a Lightning Web Component inside it. How does the Aura markup reference the LWC?
Correct because Aura references LWC using standard kebab-case or camelCase converted to namespace tag syntax.
Why this answer
Aura components reference LWC using the syntax c:lwnComponentName where 'c' is the namespace.
Which TWO conditions must be met for an Apex method to be wired using the @wire service in an LWC? Choose 2 answers.
Wire methods must be static and accessible.
Why this answer
Wired Apex methods must be static, public or global, and annotated with @AuraEnabled(cacheable=true).
Which governor limit is associated with the total number of SOQL queries issued in a single synchronous transaction?
100 is the standard synchronous SOQL limit.
Why this answer
The limit for synchronous SOQL queries is 100.
A developer creates a custom LWC that wraps child components. The developer needs to pass styling from the parent component into specific slots of the child component. Which CSS selector should be used inside the child component to style content passed into a slot?
Applies styles to elements that are distributed into a slot.
Why this answer
The ::slotted() pseudo-class selector is used in the child component's stylesheet to target nodes slotted into a <slot> element.
A developer is implementing communication in Lightning Web Components. Which TWO mechanisms are valid for passing data or messages between components? (Choose TWO)
Correct because CustomEvent is standard for child-to-parent communication.
Why this answer
Custom events (child to parent) and Lightning Message Service (unrelated components) are standard mechanisms.
A developer is choosing between Future methods and Queueable Apex. Which TWO characteristics are unique to Queueable Apex? (Choose TWO.)
System.enqueueJob returns an ID corresponding to the AsyncApexJob record.
Why this answer
Queueable Apex supports complex objects and job chaining, unlike future methods.
Which THREE limitations apply to Apex Triggers? (Choose THREE.)
Triggers are event-driven database hooks and cannot be called directly as methods from UI buttons.
Why this answer
Triggers cannot make synchronous callouts, cannot use custom web service annotations directly on trigger bodies, and have limits on stack depth.
What is the return type of a SOQL query that returns a single aggregate result, such as SELECT COUNT() FROM Account?
COUNT() queries return an Integer representing the total number of matching records.
Why this answer
A SOQL query using COUNT() without a GROUP BY clause returns an Integer representing the row count.
A developer needs to display a toast notification in a Lightning Web Component when a record is successfully saved. Which module should the developer import?
Correct because ShowToastEvent is the standard module for displaying toasts.
Why this answer
Lightning Toast notifications are triggered by importing ShowToastEvent from 'lightning/platformShowToastEvent'.
A developer is writing a batch Apex class. During the execute method, a record fails validation. The developer wants to ensure that successfully processed records in the same batch are committed while failing records are logged without aborting the entire batch. How should the DML be performed?
Passing false for allOrNone enables partial success processing.
Why this answer
Using Database.insert(records, false) performs partial DML success, allowing valid records to commit while returning an array of save results for error handling.
A developer is evaluating whether to use a Record-Triggered Flow or an Apex Trigger for a new automation requirement that involves complex callouts to an external system and heavy database operations. Which architectural guideline should the developer follow?
Apex is required when callouts are involved, and asynchronous features prevent blocking the main transaction.
Why this answer
Record-Triggered Flows cannot execute synchronous callouts directly. Apex must be used when callouts are required in a synchronous transactional context, or Queueable Apex can handle asynchronous callouts.
Which TWO conditions must be met for an Apex test method to successfully execute and contribute to code coverage? (Choose two.)
Test methods must be static.
Why this answer
Test methods must be static, have a void return type, and be marked with @isTest.
Why might a deployment fail due to 'Apex classes do not have sufficient coverage'?
Total coverage is the requirement.
Why this answer
The combined coverage across all classes must be at least 75%.
Which THREE of the following are benefits of using the Salesforce CLI for deployment?
CLI commands can be scripted for CI/CD.
Why this answer
CLI offers automation, version control integration, and environment consistency.
What is the primary benefit of using Flow Builder over Apex triggers when implementing simple field validations?
Flows offer a declarative interface that reduces maintenance overhead and code dependencies.
Why this answer
Flow Builder allows administrators and developers to build validations declaratively without writing and maintaining code.
Which TWO tools or APIs can a developer use to deploy metadata between Salesforce organizations? (Choose two.)
Change sets are native point-and-click tools for moving metadata between connected orgs.
Why this answer
Change Sets and the Metadata API (via CLI or IDEs) are primary tools for metadata deployment.
A developer needs to chain multiple asynchronous jobs sequentially where Job B must run only after Job A finishes successfully. Which interface should the developer use to achieve this?
Correct. Queueable Apex allows a job to chain another job by invoking System.enqueueJob inside its execute method.
Why this answer
Queueable Apex provides the ability to chain jobs by calling System.enqueueJob() from within the execute method of a currently running Queueable job.
Which tag is used in Visualforce to output field labels and values dynamically based on sObject field definitions?
Renders sObject field data with field-level security and formatting.
Why this answer
<apex:outputField> renders field values with correct formatting and related labels.
A developer is troubleshooting lifecycle hooks and rendering behavior in a Lightning Web Component. Which THREE statements are correct regarding LWC lifecycle execution order? (Choose THREE)
Correct because the constructor initializes the component instance before DOM insertion.
Why this answer
Constructor runs first, then connectedCallback, then renderedCallback after render.
A developer needs to ensure that a custom logging operation runs asynchronously and can be monitored using job IDs. Which interface is best suited?
Queueable Apex returns an AsyncApexJob ID when enqueued, enabling monitoring.
Why this answer
Queueable Apex provides job IDs upon enqueueing, allowing for tracking and monitoring.
Which context variable in an Apex trigger contains the old map of records for update operations?
Trigger.oldMap holds the map of ID to record instances prior to the update.
Why this answer
Trigger.oldMap provides a map of ID to the old version of records during update and delete triggers.
A developer needs to find all records across multiple objects (Contact, Lead, and Account) that contain the exact phrase 'Acme Corp'. Which feature should be used?
SOSL allows searching text across multiple objects using the FIND clause.
Why this answer
SOSL (Salesforce Object Search Language) is designed for text searches across multiple objects simultaneously.
Which TWO interfaces must be implemented when creating a scheduled Batch Apex class that also needs to perform web service callouts? (Choose two.)
Database.Batchable is required for batch processing.
Why this answer
To run as a scheduled batch with callouts, the class implements Schedulable, Database.Batchable, and Database.AllowsCallouts.
What is the correct syntax to reference a custom label in a Lightning Web Component JavaScript file?
Correct import syntax for LWC JS.
Why this answer
Custom labels are imported from @salesforce/label/Namespace.LabelName.
A developer needs to test a feature that relies on the current time. Which method should be used to simulate time?
Dependency injection is the only way to mock time.
Why this answer
There is no built-in way to 'freeze' time; developers should design for dependency injection of time, but the question asks for standard tools.
Which THREE best practices should a developer follow when implementing CRUD and FLS checks in Apex? Choose 3 answers.
Verifying isCreateable ensures users have permission to create records.
Why this answer
Developers should check isAccessible, isCreateable, and isUpdateable using describe results before querying or saving data.
A developer is writing code that processes untrusted data and wants to automatically strip fields and relationships that the current user cannot access, without throwing an exception. Which feature should be used?
stripInaccessible removes inaccessible fields and records gracefully.
Why this answer
The Security.stripInaccessible() method strips fields and SObjects that the user lacks permission to read or create/update, avoiding runtime security exceptions.
A developer wants to view real-time debug log streaming in their local environment using the Salesforce CLI. Which command should the developer execute?
sf apex log tail streams logs in real-time to the command line.
Why this answer
The sf apex tail log command streams debug logs to the terminal in real time.
A developer has a trigger that updates parent Account records when Child Contacts are modified. To prevent infinite recursion, the developer uses a static boolean variable in a helper class. What is a key limitation of using static variables for recursion control in Salesforce?
Static variables are transaction-scoped and do not prevent recursive triggers if executed across multiple discrete transaction contexts.
Why this answer
Static variables persist only for the duration of a single transaction; if a secondary transaction or test context restarts, the static variable resets.
A developer writes a Queueable Apex job that queries 50,000 records, performs calculations, and updates them. During testing, the job hits a heap size limit. What is the standard asynchronous heap size limit in Apex?
The asynchronous heap size limit is 12 MB.
Why this answer
The asynchronous transaction heap size limit is 12 MB, compared to 6 MB for synchronous transactions.
Which Apex data type should a developer use to represent a precise geographic location with latitude and longitude coordinates?
Location represents latitude and longitude coordinates.
Why this answer
The Location primitive data type in Apex is designed specifically to represent geographic locations with latitude and longitude.
Which collection type stores elements as key-value pairs in Apex?
Maps store elements as key-value pairs for rapid retrieval by key.
Why this answer
A Map stores key-value pairs where each unique key maps to a single value.
When should a developer choose Flow Builder over an Apex Trigger for business automation?
Flow Builder is designed for declarative, point-and-click automation like record-triggered updates.
Why this answer
Flow Builder is declarative and preferred for standard point-and-click record updates and screen interactions when complex custom code is unnecessary.
Why should a developer ensure that test classes have at least 75% coverage for production deployment?
Mandatory deployment requirement.
Why this answer
The platform requires at least 75% code coverage for all Apex classes before they can be deployed to production.
A developer wants to ensure that specific test data is available to all test methods in a class without recreating it. Which method should be used?
@testSetup creates data once for all test methods in the class.
Why this answer
@testSetup methods are executed once per class and set up data for all methods.
What is the synchronous governor limit for the total number of SOQL queries issued in a single Apex transaction?
100 is the standard synchronous SOQL query limit.
Why this answer
The synchronous governor limit for SOQL queries per transaction is 100.
An Apex trigger executes during a bulk insert of 300 records. To adhere to best practices regarding governor limits and bulkification, how should SOQL queries be written?
Bulkifying Apex code requires gathering IDs into collections and executing a single query outside of loops.
Why this answer
Queries must be written using bulkified collections, querying once outside of loops using bind variables for all records in Trigger.new.
An asynchronous method needs to be invoked from a standard trigger to perform callouts to an external web service. Which annotation is required for this asynchronous method?
The @future annotation with callout=true allows asynchronous execution and external web service callouts.
Why this answer
Future methods annotated with @future(callout=true) are used to perform asynchronous callouts from triggers.
A developer has written a Lightning Web Component and Apex controller, and wants to deploy only these specific metadata components to a production org using Salesforce CLI without relying on change sets. Which command is appropriate?
sf project deploy start deploys metadata to a target org from the local project.
Why this answer
sf project deploy start deploys source files from a local project directory to a target org.
When should a developer choose Flow Builder over Apex for implementing business automation logic?
Flows empower administrators to maintain logic visually without writing code.
Why this answer
Flow Builder is recommended for standard record transformations, screen prompts, and declarative logic because it is faster to build and maintain.
A developer has a requirement to pass a complex SObject list containing parent and child records into an asynchronous method for further processing. Which asynchronous feature supports passing non-primitive data types such as Lists of SObjects?
Correct. Queueable Apex allows member variables of complex data types, including SObjects and custom objects.
Why this answer
Queueable Apex supports the execution of jobs asynchronously and allows passing non-primitive data types such as lists of SObjects through class member variables.
Which TWO triggers are executed during a record merge operation in Salesforce? (Choose two.)
The losing record is deleted during a merge, firing delete triggers.
Why this answer
Merging records deletes the loser record (firing delete triggers) and updates the winner record (firing update triggers).
A developer needs to pass data from a child Lightning Web Component to a parent Lightning Web Component up the component hierarchy. What is the standard mechanism to achieve this?
Correct because CustomEvent is the standard mechanism for child-to-parent communication.
Why this answer
Child-to-parent communication in LWC is achieved by dispatching a custom event using CustomEvent and listening to it in the parent template.
A developer is configuring a Lightning Web Component to accept design attributes in the Lightning App Builder. Which THREE files make up a complete LWC bundle that supports App Builder configuration properties? (Choose THREE)
Correct part of bundle.
Why this answer
A complete configurable LWC bundle includes the HTML template, JavaScript controller, metadata file (.js-meta.xml), and design file (.design).
A developer needs to include a third-party style sheet in a Lightning Web Component. What is the standard way to load CSS styles that are stored as a static resource?
Correct because loadStyle is used to load static resource CSS files.
Why this answer
Third-party stylesheets are loaded using loadStyle from 'lightning/platformResourceLoader' inside connectedCallback.
Which CSS methodology forms the foundation of the styling architecture in Salesforce Lightning Design System (SLDS)?
Correct because SLDS utilizes BEM naming conventions.
Why this answer
SLDS is built using BEM (Block Element Modifier) methodology for class naming conventions.
A developer wants to ensure that a custom Apex REST service method properly handles authentication and executes securely in the context of the calling user. How should the class be defined?
Global accessibility is required for Apex REST endpoints, and with sharing enforces user context rules.
Why this answer
Apex REST services must be global classes, and specifying with sharing ensures sharing rules are respected.
A developer is working with the Lightning Data Service (LDS) via the @wire decorator to get record data. The record is updated elsewhere in the app, and the developer wants to imperatively refresh the wire data cache. Which function should be called?
Correct because refreshApex refreshes the cache for Apex wire adapters.
Why this answer
refreshApex() is used to refresh the data provisioned by an Apex wire adapter, while getRecordNotifyChange is used for LDS wire adapters. Wait, refreshApex is for Apex, and notifyRecordUpdateAvailable is for LDS. Let's use refreshApex for an Apex wire adapter context.
A developer is writing a SOQL query to find accounts where the billing country starts with 'United'. Which operator should be used?
LIKE with 'United%' matches strings starting with 'United'.
Why this answer
The LIKE operator is used in SOQL for wildcard matching, using '%' as the wildcard character.
What is the maximum CPU time limit for a synchronous Apex transaction in a developer edition org?
The synchronous Apex CPU time limit is 10,000 milliseconds.
Why this answer
The synchronous CPU time limit is 10,000 milliseconds for standard transactions.
When using the Metadata API to deploy components, which XML file must be present to define the components included in the package?
This is the required manifest file for Metadata API operations.
Why this answer
The 'package.xml' file is the manifest that lists the components to be retrieved or deployed via the Metadata API.
A developer is writing an Apex trigger that needs to execute logic only when records are updated and a specific custom field 'Status__c' changes from 'Draft' to 'Submitted'. Which THREE elements are required to implement this check correctly? (Choose three.)
Comparing old and new field values confirms whether a transition took place.
Why this answer
Checking for field value changes across update contexts requires comparing Trigger.oldMap with Trigger.new and checking the specific context.
An Apex trigger needs to prevent deletion of Account records that have related active Contacts. When should this check occur?
Before delete triggers allow developers to inspect related records and call addError() to block deletion.
Why this answer
Before delete triggers are used to validate and prevent the deletion of records based on related criteria.
A developer is building a Lightning Web Component and needs to dispatch a custom event. Which constructor should be used to create the event?
Standard constructor for custom events carrying detail payloads.
Why this answer
CustomEvent is the standard browser constructor used to create custom events in LWC.
A developer is working with a Visualforce page and wants to display a list of Account records using standard styling that matches the Salesforce Classic UI. Which component should the developer include?
Correct because <apex:pageBlockTable> formats tabular data matching the standard Salesforce look and feel.
Why this answer
The <apex:enhancedList> or <apex:relatedList> components allow developers to display lists with standard Salesforce formatting.
Which SOQL aggregate function should a developer use to count the exact number of rows returned by a query without retrieving the records into memory?
COUNT() returns the total number of matching records.
Why this answer
The COUNT() function returns the number of rows matching the query criteria efficiently as an integer.
A developer needs to execute lightweight asynchronous logic that is chainable and allows passing complex objects to the background job. Which asynchronous feature should the developer implement?
Queueable Apex allows complex data types and supports chaining of jobs.
Why this answer
Queueable Apex supports complex member variables including sObjects and custom Apex types, and it can be chained. Future methods only support primitive types and collections of primitive types.
Which TWO methods can be used to navigate to a standard Salesforce object's home page from a Lightning Web Component? Choose 2 answers.
Standard navigation mixin type for object pages.
Why this answer
NavigationMixin with standard__objectPage and actionName 'home' navigates to an object's home page.
A Lightning Web Component needs to communicate an event up to a grandparent component that is nested two levels above. What is the best practice to achieve this in LWC?
Correct. Setting bubbles: true allows the event to traverse up the DOM tree to parent and grandparent components.
Why this answer
Custom events in LWC bubble up the DOM tree by default when constructed with { bubbles: true, composed: false }, allowing parent and grandparent components to listen for them.
In what order does Salesforce execute system validation rules relative to Before Triggers during an insert operation?
Standard system validation rules (like required fields) run prior to the execution of Before Triggers.
Why this answer
System validation rules execute before Before Triggers in the standard Salesforce order of execution.
Where should a developer look in the Salesforce user interface to inspect detailed system debug logs generated during a specific transaction?
Setup > Custom Code > Debug Logs lists all captured debug logs for users and traces.
Why this answer
Debug logs are accessed via Setup by navigating to Custom Code > Debug Logs or via the Developer Console.
Which TWO methods are available on the Database class for performing DML operations with partial success capability? Choose 2 options.
Supports partial success via allOrNone parameter.
Why this answer
Database.insert() and Database.update() accept an allOrNone boolean parameter allowing partial success.
A developer needs to retrieve 10 Account records starting from the 21st record to implement pagination in a custom component. Which SOQL clause should be used?
LIMIT 10 restricts results to 10 records, and OFFSET 20 skips the first 20 records.
Why this answer
SOQL supports pagination using LIMIT and OFFSET clauses.
A developer needs to dynamically instantiate an sObject type based on a string variable representing the object name (e.g., 'Account'). Which method should be used?
This method retrieves the token from global describe and instantiates a new sObject instance dynamically.
Why this answer
Schema.getGlobalDescribe().get('Account').newSObject() allows dynamic sObject creation from a string object name.
What is the maximum number of batch Apex jobs that can be queued or active concurrently in the Apex flex queue?
The flex queue can hold up to 100 batch jobs in 'Holding' status.
Why this answer
The Apex flex queue holds up to 100 batch jobs waiting to be processed.
A developer needs to ensure that an Apex class respects organization-wide defaults, role hierarchies, and sharing rules when querying custom objects. Which keyword should be added to the class definition?
Enforces record-level security and sharing rules.
Why this answer
The with sharing keyword enforces sharing rules of the current user, while without sharing runs in system mode.
When calling Test.startTest() and Test.stopTest(), what happens to the governor limits?
This allows for testing code that might hit limits individually.
Why this answer
Test.startTest and Test.stopTest reset governor limits within the block.
Which TWO features are characteristics of SOSL (Salesforce Object Search Language) queries? Choose 2 answers.
SOSL is designed for text searches across multiple object types simultaneously.
Why this answer
SOSL searches text across multiple objects and fields simultaneously and can tokenize words for matching.
A developer needs to retrieve a list of Accounts along with their related Contacts using a single SOQL query in Apex. Which query structure is syntactically correct?
This represents a valid parent-to-child relationship query using a subquery for the child relationship name.
Why this answer
Parent-to-child relationships in SOQL are queried using a subquery within parentheses inside the SELECT clause.
What is the correct way to declare a constant variable in Apex?
final defines a variable that can only be assigned once.
Why this answer
Constants in Apex are declared using the final keyword combined with static.
Practice SALESFORCE-PD1 by domain
Target a specific domain to shore up weak areas.
See all domains with question counts →