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  1. Home
  2. Salesforce Certification
  3. B2B-Commerce-Developer Exam
  4. Salesforce.B2B-Commerce-Developer.v2026-07-17.q171 Dumps
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Question 61

A developer is building a custom component in Lightning web components (LWC) that needs to fetch data from an API.
Which lifecycle hook should the developer use to make the API call?

Correct Answer: A
To make an API call in a Lightning web component (LWC), a developer should use the connectedCallback lifecycle hook. The connectedCallback lifecycle hook is invoked when the component is inserted into the DOM. This is the ideal time to make an API call, as the component is ready to receive and display data.
Thedeveloper can use the fetch API or a third-party library, such as axios, to make the API call and handle the response. The renderedCallback lifecycle hook is not a good choice for making an API call, as it is invoked every time the component is rendered or rerendered. This can cause unnecessary or repeated API calls and affect performance. The errorCallback lifecycle hook is not a good choice either, as it is invoked when an error occurs in the component or in one of its children. This is not related to making an API call, but rather to handling errors. The disconnectedCallback lifecycle hook is not a good choice either, as it is invoked when the component is removed from the DOM. This is not a suitable time to make an API call, as the component is no longer visible or active. Salesforce References: Lightning Web Components Developer Guide: Lifecycle Hooks, Lightning Web Components Developer Guide: Call an Apex Method Imperatively
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Question 62

Why is the use ofa standard Visualforce control such as apex:form discouraged in Salesforce B2B Commerce page includes and subscriber pages?

Correct Answer: C
The use of a standard Visualforce control such as apex:form is discouraged in Salesforce B2B Commerce page includes and subscriber pages because the CCRZ JavaScript object is not accessible within an apex:form control. The CCRZ JavaScript object is a global object that provides access to various B2B Commerce functions and properties, such as logging, utilities, events, and configuration. Using an apex:form control would prevent the developer from using the CCRZ JavaScript object and its features. Visualforce does not
"scope" controls that are present on a page and scope of the control will be set to "ccrz", as this is not a valid statement. Apex:form does not render DOM components slowly, as this is not a performance issue. JavaScript events are supported within an apex:form control, as this is not a limitation. Salesforce References: B2B Commerce Developer Guide: CCRZ JavaScript Object, B2B Commerce Developer Guide: Page Includes
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Question 63

A developer is trying to troubleshoot why a field is not displaying on the Product Detail Page. What should be typed in the Developer Tools Console in the browser to view the fields available for the Product Detail Page?

Correct Answer: C
Explanation
To view the fields available for the Product Detail Page, the developer should type CCRZ.productDetailModel in the Developer Tools Console in the browser. This will display the product detail model object, which contains the product data and attributes that are rendered on the page. The other options are either not valid or not relevant for the Product Detail Page.
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Question 64

A developer is building a custom component in Lightning web components (LWC) that needs to fetch data from an API.
Which lifecycle hook should the developer use to make the API call?

Correct Answer: A
To make an API call in a Lightning web component (LWC), a developer should use the connectedCallback lifecycle hook. The connectedCallback lifecycle hook is invoked when the component is inserted into the DOM. This is the ideal time to make an API call, as the component is ready to receive and display data. The developer can use the fetch API or a third-party library, such as axios, to make the API call and handle the response. The renderedCallback lifecycle hook is not a good choice for making an API call, as it is invoked every time the component is rendered or rerendered. This can cause unnecessary or repeated API calls and affect performance. The errorCallback lifecycle hook is not a good choice either, as it is invoked when an error occurs in the component or in one of its children. This is not related to making an API call, but rather to handling errors. The disconnectedCallback lifecycle hook is not a good choice either, as it is invoked when the component is removed from the DOM. This is not a suitable time to make an API call, as the component is no longer visible or active. Salesforce Reference: Lightning Web Components Developer Guide: Lifecycle Hooks, Lightning Web Components Developer Guide: Call an Apex Method Imperatively
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Question 65

What are three ways to test the value of Page Label on any Salesforce B2B Commerce Community Page? (3 answers)

Correct Answer: B,C,D
Three ways to test the value of Page Label on any Salesforce B2B Commerce Community Page are:
* Execute CCRZ.pagevars.pageLabels['PAGE_LABEL_NAME'] in the JavaScript console. This will return the value of the page label with the given name from the pagevars object, which contains all the page labels that are used on the page.
* Execute CCRZ.processPageLabelMap('PAGE_LABEL_NAME') in the JavaScript console. This will return the value of the page label with the given name from the pageLabelMap object, which contains all the page labels that are defined in CCAdmin.
* Enable the 'display page label names' in cc admin. This will display the name of each page label next to its value on the storefront pages, which can help identify and verify the page labels. Salesforce References: B2B Commerce and D2C Commerce Developer Guide, Page Labels
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