A developer needs to create an event listener on a parent component programmaticallv. With the script below, what should replace the text

Answer : C
To create an event listener on a parent component programmatically, the developer should use the following line of code:
this.template.addEventListener('notification', this.handleNotification);
This line of code adds an event listener to the template element of the parent component, which is the root element that contains all the child elements. The event listener listens for an event named 'notification', which is a custom event that can be dispatched by any child component. The event listener invokes a method named handleNotification, which is an arrow function defined in the parent component class. The handleNotification method receives the event object as a parameter and can perform any logic based on the event data. The other lines of code are either incorrect or incomplete. Salesforce Reference: Lightning Web Components Developer Guide: Communicate with Events, Lightning Web Components Developer Guide: Create and Dispatch Events
Which event is triggered within Salesforce B2B Commerce whenever a cart's statechanges?
A developer is working on an existing checkout implementation built against the Lightning Web Runtime (LWR) and wants to implement a custom child checkout component to modify out-of-the-box functionality.
Which interface must the developer implement for the child component?
Answer : D
:To implement a custom child checkout component for a B2B or B2C store created with an LWR template, the developer must implement the CheckoutStep interface from thecommerce/checkoutmodule. This interface defines the methods and properties that the child component must have to communicate with the parent checkout component and the checkout data provider. The CheckoutStep interface extends the UseCheckoutComponent interface, which provides the common functionality for all checkout components, such as loading and saving data, reporting validity, and handling errors.
The other options are not correct because:
A) CheckoutSavable is not a valid interface for a custom child checkout component. There is no such interface in thecommerce/checkoutmodule or the Lightning web component framework.
B) Checkoutoutinterface is not a valid interface for a custom child checkout component. There is no such interface in thecommerce/checkoutmodule or the Lightning web component framework.
C) CustomCheckout is not a valid interface for a custom child checkout component. There is no such interface in thecommerce/checkoutmodule or the Lightning web component framework.
Create a Custom Checkout Component for a B2B or B2C Store (LWR)
Which two aspects are applicable to Page Includes? (2 answers)
Answer : A, C
Two aspects that are applicable to Page Includes are:
Standard Visualforce controls such as apex:form should not be used within a page include. This is because the page include is rendered inside an existing Visualforce page that already has a form element. Using another form element inside the page include will cause conflicts and errors. Instead, the page include should use HTML elements or custom components that do not require a form element.
Northern Trail Outfitters (NTO) wants to be able to reference historical data in another system from the Salesforce user experience as read-only, but does not want to import the data into the
org or incur storage costs. What is one product feature that could accomplish this?
Answer : C
Big Objects are not the correct answer. Big objects allow you to store and manage massive amounts of data on the Salesforce platform. However, big objects are not suitable for referencing historical data in another system, as they require importing the data into the org and incur storage costs.
Lightning Out is not the correct answer. Lightning Out is a feature that lets you run Lightning components in any container outside the Salesforce platform. However, Lightning Out does not provide a way to reference historical data in another system, as it is mainly used for embedding Lightning components in other web pages or apps.
External SOQL queries in Apex code are not the correct answer. External SOQL queries are a way to query data from external data sources using SOQL syntax in Apex code. However, external SOQL queries require defining an external data source and an external object first, so they are not a product feature by themselves, but rather a way to use external objects in Apex code.Reference:
B2B Commerce on Lightning Experience Developer Guide
B2B Commerce and D2C Commerce Developer Guide
Salesforce Accredited B2B Commerce Developer
Work with External Data Sources
Access External Data With Salesforce Connect
Migrate data from one organization to another
[Big Objects]
[Lightning Out]
[External SOQL Queries]
A developer is creating a component to implement a custom Terms and Conditions checkbox at checkout in the Aura Commerce template.
Which method should the developer implement on the Lightning web component to ensure the user accepts the terms and conditions?