Instead of waiting to send emails to support personnel directly from the finish method of a batch Apex process , Universal Containers wants to notify an external system in the event that an unhandled exception occurs. What is the appropriate publish/subscribe logic to meet this requirement?
A. Publish the error event using the Eventbus. publish () method.
B. No publishing is necessary. Have the external system subscribe to the BatchapexErrorEvent.
C. Publish the error event using the addError method.
D. Publish the error event with a Flow.
Explanation:
Salesforce provides a built-in event called BatchApexErrorEvent, which is automatically published when an unhandled exception occurs in a Batch Apex job. Instead of manually publishing an event, you can configure the external system to subscribe to this event via:
Platform Events (using CometD or Streaming API)
Change Data Capture (CDC)
Outbound Messaging
Why This Works Best:
No Custom Code Needed – Salesforce automatically publishes BatchApexErrorEvent when a batch fails.
Real-Time Notifications – External systems can subscribe and react immediately.
Governor Limit Friendly – No additional DML or Apex transactions required.
Reference:
BatchApexErrorEvent Documentation
Universal Containers stores user preferences in a hierarchy custom setting, user Prefs_c, with a checkbox field, show _help co. Company-level defaults are stored at the organizational level, but may be overridden at the user level. If a user has not overridden preferences, then the defaults should be used. How should the show_Help_ c preference be retrieved for the current user?
A. Boolean show = User_Prefa_ c.getValuea().Show_Help_ co;
B. Boolean show = User Prefs c.getValues(UserInfo.getUserid{)).Show_Help c;
C. Boolean show = User_Prefs_c.getlnstance(].Show Help c;
D. Boolean show = User Prefs_c.show Melp_c;
Explanation:
Universal Containers is using a Hierarchy Custom Setting, which allows organization-level defaults and user-level overrides.
To retrieve a value from a Hierarchy Custom Setting, use:
Your_Custom_Setting__c.getInstance()
If there is a user-level setting, it returns that.
If there is no user-level override, it falls back to the org-level default.
This is exactly what the scenario requires — use the user value if available, otherwise use the org-level default.
Why the other options are incorrect:
A. getValue() is used with List Custom Settings, not Hierarchy Custom Settings.
B. getValues(UserInfo.getUserId()) would return the user-specific setting but does not fallback to org-level defaults if the user doesn't have a value — which violates the requirement.
D. User_Prefs__c.Show_Help__c; is invalid syntax and doesn’t retrieve any setting.
A corporation has many different Salesforce orgs, with some different objects and some common objects, and wants to build a single Java application that can create, retrieve, and update common object records in all of the different orgs. Which method of integration should the application use?
A. SOAP API with the Partner WSDL
B. Apex REST Web Service
C. SOAP API with the Enterprise WSDL
D. Metadata APT
Explanation:
Using the SOAP API with the Partner WSDL is the optimal choice when building an integration that must work across multiple Salesforce orgs with potentially varying object definitions. The Partner WSDL offers a loosely coupled, dynamic interface that doesn't require hard-coded, strongly-typed object definitions. This flexibility is particularly valuable when integrating with several orgs, ensuring that the Java application can create, retrieve, and update common object records without being restricted by the specific metadata of any single org.
In contrast, the Enterprise WSDL is strongly typed and tailored to a specific Salesforce org's schema, which would make it inflexible for an application targeting multiple orgs with differences in their data models. Similarly, using an Apex REST Web Service or Metadata API would not be as optimal for direct CRUD operations across various orgs since those options either require custom endpoints per org or are intended for managing metadata rather than everyday data records.
For compliance purposes, a company is required to track long-term product usage in their org. The information that they need to log will be collected from more than one object and, over time, they predict they will have hundreds of millions of records. What should a developer use to implement this?
A. Setup audit trail
B. Field audit trail
C. Big objects
D. Field history tracking
Explanation:
The key requirement here is to track large volumes of historical product usage data — potentially hundreds of millions of records over time. This is exactly what Big Objects are designed for.
Why Big Objects are the best fit:
They are optimized for storing and managing massive volumes of data.
Can scale to billions of records.
Support custom indexing for efficient querying.
Ideal for compliance, audit trails, and historical tracking across objects.
They don't count against standard data storage limits.
In this case, since the data is collected from multiple objects, you can define a custom Big Object with fields referencing the necessary source object IDs, timestamps, usage metrics, etc.
A developer is tasked with creating a Lightning web component that allows users to create a Case for a selected product, directly from a custom Lightning page. The input fields in the component are displayed in a non-linear fashion on top of an image of the product to help the user better understand the meaning of the fields. Which two components should a developer use to implement the creation of the Case from the Lightning web component? (Choose two answers).
A. lightning-record-edit-form
B. lightning-input
C. lightning-record-form
D. lightning-input-field
Explanation:
Why These Components?
lightning-record-edit-form
Provides a structured way to create/edit records (like Cases) with built-in validation and error handling.
Supports custom layouts (non-linear field placement, as required).
Automatically handles field-level security and required fields.
lightning-input-field
Dynamically renders the correct input type (picklist, text, etc.) based on the Case field’s metadata.
Works seamlessly with lightning-record-edit-form to bind field values to the record.
Allows custom styling/placement (can be positioned over a product image).
Which two scenarios require an Apex method to be called imperatively from a Lightning web component? (Choose two.)
A. Calling a method that makes a web service callout
B. Calling a method that is not annotated with cacheable=true
C. Calling a method with the click of a button
D. Calling a method that is external to the main controller for the Lightning web component
Explanation:
In Lightning Web Components (LWC), Apex methods can be called either imperatively or via wire service. The wire service is reactive and supports automatic updates and caching, but has limitations.
A. Calling a method that makes a web service callout
Imperative Apex calls are required when calling methods that perform callouts.
The wire service cannot be used with callout logic, because it must be cacheable and non-mutating.
Therefore, callout-based Apex methods must be invoked imperatively using @wire() or standard import + method() pattern.
B. Calling a method that is not annotated with @AuraEnabled(cacheable=true)
The wire adapter only works with Apex methods annotated with @AuraEnabled(cacheable=true).
If the method modifies data or is not cacheable, it must be called imperatively.
A Salesforce Platform Developer is leading a team that is tasked with deploying a new application to production. The team has used source-driven development, and they want to ensure that the application is deployed successfully. What tool or mechanism should be used to verify that the deployment is successful?
A. Force.com Migration Tool
B. Salesforce DX CLI
C. Apex Test Execution
D. Salesforce Inspector
Explanation:
The Salesforce CLI with Salesforce DX can be used to execute and verify the deployment of metadata to production. It allows the developer to run specified tests and ensure that the deployment meets all required conditions for success.
Which code snippet processes records in the most memory efficient manner, avoiding governor limits such as "Apex heap size too large"?
A. List
B. for(Opportunity opp : [SELECT Id, Amount FROM Opportunity]) { // perform operation here
C. Map
D. List
Explanation:
SOQL For Loops process records in smaller, manageable batches of 200, reducing memory usage and avoiding governor limits like "Apex heap size too large." Unlike other options that load all records into memory, SOQL For Loops handle large datasets efficiently by querying incrementally.
Your organization always stresses the importance of on-time delivery and reliability. A manager has detected that your team’s progress is too slow. They feel that your team's velocity needs to be 10% higher. The organization expects you, as the Scrum Master, to make it happen. How do you respond? (Choose two.)
A. You help management understand that it typically takes a few Sprints for a team to gradually increase the velocity up to the level expected. Meanwhile you present this to the team as a challenge and a company goal, leaving it however up to them to figure out exactly how to achieve this.
B. You educate management that it is the Scrum Team's responsibility to improve their velocity. You invite management to the next Sprint Retrospective to brainstorm on how they can improve.
C. You explain how a Scrum Team uses the velocity of a Sprint primarily to forecast work for the next Sprint, not to perfectly predict future productivity. You refer management to the Product Owner for all information concerning the progress of development.
D. You inform management of organizational impediments that prevent the Scrum Team from being more productive. You enlist their help to remove these impediments.
E. You tell management that this is not your accountability in Scrum. You direct them to the Product Owner to determine whether the forecast is accurate.
Explanation:
A) emphasizes a gradual increase in velocity, which aligns with Scrum principles of continuous improvement and team autonomy.
D) involves addressing organizational impediments, a key role of the Scrum Master, as removing obstacles is critical to improving team performance.
Universal Containers develops a Visualforce page that requires the inclusion of external JavaScript and C55 files. They want to ensure efficient loading and caching of the page. Which feature should be utilized to achieve this goal?
A. ActionFunction
B. PageBlockTable
C. Static resources
D. RemoteAction
Explanation:
Static resources are the best choice when you need to include external JavaScript and CSS files in a Visualforce page. They allow you to bundle these files and cache them efficiently. When you upload files as static resources, Salesforce serves them with built-in caching, which improves page performance by reducing load times. Additionally, static resources can be versioned and easily updated without modifying the Visualforce pages that reference them. This leads to efficient loading, reduced server requests, and better overall user experience.
A developer creates an application event that has triggered an infinite loop. What may have caused this problem?
A. The event handler calls a trigger
B. The event has multiple handlers registered in the project
C. An event is fired 'ontouchend' and is unhandled
D. The event is fired from a custom renderer
Explanation:
In Salesforce development, firing an event from a custom renderer can sometimes cause unintended behavior, such as infinite loops. This is because custom renderers directly control the rendering lifecycle of components, and triggering events in these renderers can lead to situations where the event repeatedly fires, causing an infinite loop.
A developer created a Lightning web component that allows users to input a text value that is used to search for Accounts by calling an Apex method. The Apex method returns a list of Account Wrappers and is called imperatively from a JavaScript event handler.
Which two changes should the developer make so the Apex method functions correctly? Choose 2 answers
A. Add @AuraEnafcle3 to line 09.
B. Add @AuraEnabled to line 03.
C. Add @AuraEnabled to lines 11 and 12.
D. Add @AuraEnat:ei to line 01.
Explanation:
For an Apex method to be called imperatively from an LWC, it must be declared as public or global, static, and annotated with @AuraEnabled. In this example, the Apex method that returns a list of AccountWrapper objects is defined on line 03. Therefore, the method should be annotated with @AuraEnabled so it can be invoked from your Lightning web component.
Additionally, when you return custom objects (like your AccountWrapper), all properties that need to be accessible on the client side must also be annotated with @AuraEnabled. In the provided code snippet, the properties on lines 11 and 12 require this annotation. This ensures that the framework can serialize and send the data to the client-side LWC.
By adding @AuraEnabled to the Apex method and its properties, you enable the method to be called imperatively and have its returned data properly processed in your Lightning web component.
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