Salesforce Updated PDI Exam Questions and Answers by mckenzie

Aura Components and Lightning Web Components are two technologies that are built on a framework that fully supports the business requirement of building a responsive application capable of responding to touch events, that will be executed on stateful clients. Both technologies are part of the Lightning Component Framework, which is a modern UI framework for developing dynamic web apps for mobile and desktop devices. The Lightning Component Framework uses standard web technologies, such as HTML, CSS, JavaScript, and Web Components, to create reusable and interoperable components that can adapt to different screen sizes, devices, and orientations. The framework also provides features such as data binding, event handling, state management, and server-side integration, to enable developers to create rich and interactive user interfaces.

Aura Components are the original technology for creating Lightning components. They use a custom XML-based markup language, Aura, to define the component structure and behavior. Aura Components can respond to touch events using the ui:input component, which provides a generic input element that can handle different input types, such as text, number, date, checkbox, radio, toggle, and email. The ui:input component also supports touch gestures, such as swipe, tap, and pinch, by using the ontouchstart, ontouchend, ontouchmove, and ontouchcancel attributes. Aura Components are stateful, meaning that they maintain their state on the client-side and communicate with the server only when necessary. This reduces the network traffic and improves the performance and user experience.

Lightning Web Components are the newer technology for creating Lightning components. They use standard HTML, CSS, and JavaScript to define the component structure and behavior. Lightning Web Components can respond to touch events using the standard HTML input element, which provides a native input element that can handle different input types, such as text, number, date, checkbox, radio, toggle, and email. The input element also supports touch gestures, such as swipe, tap, and pinch, by using the standard touch event listeners, such as touchstart, touchend, touchmove, and touchcancel. Lightning Web Components are also stateful, meaning that they maintain their state on the client-side and communicate with the server only when necessary. This reduces the network traffic and improves the performance and user experience.

Visualforce Components and Visualforce Pages are two technologies that are not built on a framework that fully supports the business requirement of building a responsive application capable of responding to touch events, that will be executed on stateful clients. Visualforce Components are reusable UI elements that can be used in Visualforce Pages. Visualforce Pages are web pages that can display and interact with Salesforce data and logic. Visualforce Components and Pages use a custom XML-based markup language, Visualforce, to define the UI elements and behavior. Visualforce Components and Pages can be made responsive by using the Salesforce Lightning Design System (SLDS), which is a collection of design guidelines, components, and resources that enable developers to create consistent and beautiful user interfaces across devices. However, Visualforce Components and Pages do not have native support for touch events, and require custom JavaScript code to handle them. Visualforce Components and Pages are also stateless, meaning that they do not maintain their state on the client-side and communicate with the server on every request. This increases the network traffic and affects the performance and user experience.

References:

• Lightning Component Framework
• Aura Components Developer Guide
• Lightning Web Components Developer Guide
• Visualforce Developer Guide
• Salesforce Lightning Design System

The optimal way to implement this feature is to build a flow with Flow Builder. Flow Builder is a tool that lets you automate business processes by creating flows that execute logic, interact with Salesforce, and call Apex classes. You can use Flow Builder to create a record-triggered flow that runs when an Account record is updated. In the flow, you can use a Get Records element to query the custom object based on the Postal Code field of the Account record. Then, you can use an Assignment element to assign the value of the Timezone field from the custom object record to the Timezone field of the Account record. Finally, you can use an Update Records element to save the changes to the Account record.

Option B is incorrect because an account assignment rule is used to automatically assign account owners based on criteria. It does not update other fields on the account record.

Option C is incorrect because a formula field is a read-only field that derives its value from a formula expression. It cannot be updated by the user or by a trigger.

Option D is incorrect because an account approval process is used to require approval from one or more users before an account record can be saved. It does not update other fields on the account record.

References: Flow Builder (Trailhead)), Record-Triggered Flows (Trailhead)), Account Assignment Rules (Salesforce Help)), Formula Fields (Salesforce Help)), Approval Processes (Salesforce Help))

 To allow reporting on which companies have reported which bugs, a junction object between Bug__c and Account is needed. A junction object is a custom object with two master-detail relationships, one to each of the objects it is joining. A junction object allows many-to-many relationships between objects, such as Bug__c and Account in this scenario. With a junction object, each bug can be related to multiple accounts, and each account can be related to multiple bugs. A roll-up summary field, a lookup field, or a master-detail field would not allow this kind of relationship, as they only support one-to-many or one-to-one relationships between objects. References:

• Define Relationships Between Custom Objects (Trailhead Module)
• Relationships Among Objects (Salesforce Developer Documentation)
• Free Salesforce Platform Developer 1 Practice Exam (With Answers) (Salesforce Ben)

• Scheduled Flow and Record-Triggered Flow are two automation tools that a developer can recommend to meet the business requirements of sending a follow-up email reminder 6 hours after the stage_c field is set to ‘Waiting on customer’. They are both bulk safe, meaning they can handle large volumes of records without hitting governor limits12.
• Scheduled Flow is an automation tool that allows you to run a flow at a specific time or on a recurring schedule. You can use it to query the Case object for records that have the stage_c field set to ‘Waiting on customer’ and then send an email reminder to the case owner or the customer3 .
• Record-Triggered Flow is an automation tool that allows you to run a flow when a record is created or updated. You can use it to create a scheduled path that executes 6 hours after the stage_c field is set to ‘Waiting on customer’ and then send an email reminder to the case owner or the customer .
• Einstein Next Best Action and Process Builder are two other automation tools, but they are not suitable for meeting the business requirements. They are not bulk safe, meaning they can hit governor limits when processing large volumes of records12.
• Einstein Next Best Action is an automation tool that allows you to provide intelligent and contextual recommendations to users based on business rules and predictive models. It is not designed to send email reminders based on field values .
• Process Builder is an automation tool that allows you to create a process that performs actions when certain criteria are met. It can send email alerts, but it does not support time-based actions for record update triggers. It also has lower limits for the number of email alerts and scheduled actions than flows .

References:

• 1: Bulk Apex Triggers
• 2: Cert Prep: Platform Developer I: Automation and Logic
• 3: Schedule a Flow to Run at a Specific Time
• : Cert Prep: Platform Developer I: User Interface
• : [Create a Record-Triggered Flow]
• : Cert Prep: Platform Developer I: Data Modeling and Management
• : [Einstein Next Best Action Basics]
• : Cert Prep: Platform Developer I: Business Logic and Process Automation
• : [Create a Process That Performs Scheduled Actions]
• : Cert Prep: Platform Developer I: Testing and Debugging