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| Section | Weight | Objectives |
|---|---|---|
| User Interface | 23% | - UI security and accessibility - Lightning App Builder and components - Visualforce pages and controllers - Lightning Web Components |
| Logic and Process Automation | 40% | - Apex programming: classes, triggers, and methods - SOQL, SOSL, and DML operations - Formulas, roll-up summaries, and validation rules - Process Builder, Flow, and Workflow - Governor limits and exception handling - Order of execution |
| Testing, Debugging, and Deployment | 17% | - Code coverage requirements - Debugging tools and techniques - Deployment tools and processes - Change management and best practices - Test methods and test data creation |
| Salesforce Fundamentals | 7% | - Development models and tools - Platform features and capabilities - Multi-tenant architecture |
| Data Modeling and Management | 13% | - Data security and sharing - Data import/export and management - Relationships and lookup filters - Custom objects and fields |
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NEW QUESTION # 95
As part of new feature development, a developer is asked to build a responsive application capable of responding to touch events, that will be executed on stateful clients.
Which two technologies are built on a framework that fully supports the business requirement? Choose 2 answers
Answer: A,B
Explanation:
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
NEW QUESTION # 96
A lead developer creates an Apex interface called Laptop.
Consider the following code snippet:
apex
CopyEdit
public class SilverLaptop {
// code implementation
}
How can a developer use the Laptop interface within the SilverLaptop class?
Answer: D
Explanation:
Comprehensive and Detailed Explanation From Exact Extract:
To implement an interface in Apex, the implements keyword is used in the class definition. This ensures that the class provides concrete implementations of the interface's methods.
Reference:
Apex Developer Guide: Interfaces
NEW QUESTION # 97
A developer Is asked to create a Visualforce page that lists the contacts owned by the current user. This component will be embedded In a Lightning page.
Without writing unnecessary code, which controller should be used for this purpose?
Answer: D
Explanation:
A standard list controller provides a list of records of a specific object type, such as Contact, and allows you to create Visualforce pages that can display or act on that data1. A standard list controller is suitable for this purpose, because it can easily query the contacts owned by the current user and display them in a table or list. A standard list controller also supports pagination, sorting, filtering, and mass actions2. A standard controller provides access to a single record of a specific object type, such as Account, and is not suitable for displaying a list of records1. A lightning controller is a JavaScript controller that handles user interactions and events in a Lightning web component, and is not related to Visualforce pages3. A custom controller is an Apex class that implements all the logic for a Visualforce page, and requires writing more code than using a standard list controller1. References:
* Standard Controllers and Standard List Controllers | Visualforce Developer Guide | Salesforce Developers
* Using Standard List Controllers | Visualforce Developer Guide | Salesforce Developers
* Lightning Web Components Developer Guide | Salesforce Developers
NEW QUESTION # 98
A developer has to Identify a method in an Apex class that performs resource intensive actions in memory by iterating over the result set of a SOQL statement on the account. The method also performs a DML statement to save the changes to the database. Which two techniques should the developer implement as a best practice to esure transaction control and avoid exceeding governor limits? Choose
2 answers
Answer: A,D
NEW QUESTION # 99
What are two considerations for custom Apex Exception classes? Choose 2 answers.
Answer: A,D
NEW QUESTION # 100
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