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Question 1

A developer is working on a storefront that needs to use a sophisticated pricing engine hosted as a service outside the org. Assuming security and trusts have been established, which two actions must the developer take?

AMake a call to the service

BUse External Ohjects

CImplement the sfdc_checkout.PriceCalculations

DImplement the sfdc_checkout.CartPriceCalculations
The correct answer isA and C. To use a sophisticated pricing engine hosted as a service outside the org, the developer must make a call to the service and implement the sfdc_checkout.PriceCalculations interface12. The sfdc_checkout.PriceCalculations interface is a standard interface that defines the methods for calculating prices for a cart or an order1. The developer can use this interface to override the default pricing logic and integrate with an external pricing service12. The developer must also make a call to the external service using Apex REST or SOAP callouts3and handle the response data accordingly.
Use External Objects and Implement the sfdc_checkout.CartPriceCalculations are not the correct answers. External objects are a way to access data from external data sources in real time, but they are not suitable for integrating with a pricing service that requires dynamic calculations . The sfdc_checkout.CartPriceCalculations interface is a deprecated interface that was used for calculating prices for a cart only1. It has been replaced by the sfdc_checkout.PriceCalculations interface, which supports both carts and orders1. Reference:
B2B Commerce on Lightning Experience Developer Guide
B2B Commerce and D2C Commerce Developer Guide
Salesforce Accredited B2B Commerce Developer
sfdc_checkout.PriceCalculations Interface
Integrate with Lightning B2B Commerce
Apex REST Callouts
[Apex Web Services and Callouts]
[Work with External Data Sources]
[Access External Data With Salesforce Connect]

Correct Answer: 1

A, C

Question 2

What tool can a developer use to investigate errors during development?

ACommerce Diagnostics Event Logging

BCheckout Flow Log

CSupport cases

DBrowser dev tools
Browser dev tools are a set of web authoring and debugging tools built into most modern browsers. They allow developers to inspect, edit, and debug the HTML, CSS, JavaScript, and network activity of a web page. They can also provide useful information about errors, warnings, performance, and accessibility issues. Browser dev tools are especially helpful for developing and testing Lightning web components, as they can display the component hierarchy, attributes, events, and slots.
The other options are not correct because:
A) Commerce Diagnostics Event Logging is a feature that enables developers to capture and analyze events that occur during the execution of B2C Commerce code. It can help identify performance bottlenecks, memory leaks, and unexpected behavior. However, it is not a tool that can be used directly by the developer, but rather a service that requires a support request to enable and access.
B) Checkout Flow Log is a log file that shows the details of the checkout flow execution, such as the input and output parameters, the pipeline steps, and the errors and warnings. It can help troubleshoot issues related to the checkout process, such as payment, shipping, or tax calculation. However, it is not a tool that can be used during development, but rather a log file that can be accessed after the checkout flow has run.
C) Support cases are requests for assistance from the Salesforce support team. They can help resolve technical issues, provide guidance, or escalate bugs. However, they are not a tool that can be used to investigate errors during development, but rather a communication channel that can be used after the developer has exhausted other resources.

Correct Answer: 2

Question 3

What is the fastest route to establishing the data needed for checkout development when setting up a new Store?

AImport a previously exported store archive

BUse sfdx setup scripts

CSelect Add Sample Data when setting up the store

DImport the data with data loader
Option B is the correct answer because it describes the fastest route to establishing the data needed for checkout development when setting up a new store. The developer can use sfdx setup scripts to deploy a Lightning B2B testing environment that includes checkout flows, sample products, and a buyer. This way, the developer can quickly and easily test and customize the checkout flow using Experience Builder or Flow Builder. The other options are incorrect because they either require more time, manual steps, or additional tools to set up the data for checkout development. For example, importing a previously exported store archive or using data loader would require the developer to have access to the source data and the target org, and to map the fields and objects correctly. Selecting Add Sample Data when setting up the store would only provide a limited amount of data that may not be sufficient for checkout development. Reference:Create a B2B Commerce Org and Checkout Flow,B2B Commerce on Lightning Experience Developer Guide,B2B Commerce and D2C Commerce Developer Guide

Correct Answer: 3

Question 4

Which option is the correct syntax to render a property in a Lightning web component template?

ASurround the property with curly braces: {property}

BSurround the property with brackets: [property]

CSurround the property with an exclamation point and curly braces: {property}

DSurround the property with curly braces and exclamation point: {{property}
The correct syntax to render a property in a Lightning web component template is to surround the property with curly braces: {property}. This syntax allows you to access the property value from the JavaScript class of the component and display it in the HTML template. The other options are incorrect because they either use invalid characters or do not follow the standard syntax for rendering a property in a Lightning web component template. Reference:Use JavaScript Properties in Templates | Lightning Web Components Developer Guide

Correct Answer: 4

Question 5

Which tool should a developer use to author automated tests for custom Lightning web components?

AVisual Studio Code

BSalesforce CLI

CJest

DSalesforce Developer Console
A developer should use Jest to author automated tests for custom Lightning web components. Jest is a powerful tool with rich features for writing JavaScript tests. It is the recommended testing framework for Lightning web components by Salesforce1. Jest allows the developer to write unit tests in local JavaScript files, run them from the command line or Visual Studio Code, and debug them using breakpoints and watch expressions2. Jest also provides features such as mocking, code coverage, snapshots, and asynchronous testing3.
Option A, Option B, and Option D are incorrect because they are not testing tools, but rather development tools. Visual Studio Code is an integrated development environment (IDE) that supports Lightning web components development with extensions and plugins4. Salesforce CLI is a command line interface that allows the developer to create, deploy, and manage Lightning web components projects5. Salesforce Developer Console is a web-based tool that provides code editing, debugging, and testing features for Apex and Visualforce, but not for Lightning web components. Reference:
Test Lightning Web Components
Write Jest Tests
Jest Documentation
Visual Studio Code
Salesforce CLI
[Salesforce Developer Console]

Correct Answer: 5

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