Pass Using CRT-450 Exam Dumps

[Reference:, Passing Data to Child Components, Option B: The parent component can invoke a public method in the child component., Correct Method., Explanation:, The child component can expose a public method using the @api decorator., The parent can call this method using a DOM query selector., Example:, Child Component (childComponent.js):, import { LightningElement, api } from 'lwc';, export default class ChildComponent extends LightningElement {, @api, myMethod(value) {, // handle the value, }, }, , Parent Component (parentComponent.js):, , import { LightningElement } from 'lwc';, export default class ParentComponent extends LightningElement {, handleButtonClick() {, const childComponent = this.template.querySelector('c-child-component');, childComponent.myMethod('some value');, }, }, Reference:, Calling Methods on Child Components, Options Not Suitable:, Option C: The parent component can use a custom event to pass the data to the child component., Incorrect for Parent-to-Child Communication., Explanation:, Custom events in LWC are used for child-to-parent communication., The child component can dispatch events to communicate with the parent., Events do not flow from parent to child in LWC., Reference:, Communicating with Events, Option D: The parent component can use the Apex controller class to send data to the child component., Not Appropriate., Explanation:, Using an Apex controller to pass data between parent and child components is unnecessary and inefficient., Apex controllers are used for server-side data operations, not component communication., Reference:, Calling Apex Methods, Conclusion:, The parent component can pass a string value to the child component using Option A (public property) and Option B (public method)., These are the standard and recommended ways for parent-to-child communication in LWC., , , ]

[:, Making a Custom Field Required, Why Other Options are Less Optimal or Incorrect:, Option A: Mark the field as Required on the object's page layout, UI Only: This setting only enforces the requirement when users interact with the record via the specific page layout., Not Universal: Does not prevent records from being saved without a value through the API, data import, or other page layouts., Reference: Page Layouts, Option B: Set "Use the first value in the list as the default value" to True, Default Value: Automatically populates the field on new records but does not prevent users from clearing the value., No Enforcement on Updates: Does not enforce a value on record updates if the field is cleared., Reference: Default Values for Picklist Fields, Option D: Write an Apex trigger to ensure a value is selected, Unnecessary Complexity: Writing code for a requirement that can be met declaratively adds unnecessary complexity., Maintenance Overhead: Triggers require testing and ongoing maintenance., Best Practices: Prefer declarative solutions over programmatic ones when possible., Reference: Apex Triggers, Conclusion:, Marking the Food_Preference__c field as Required on the field definition ensures that a value is always selected when a record is saved, across all contexts., It is the most efficient and maintainable solution., ]

[Reference:, Adding an SVG Resource to a Component, Option D: Content asset files, Accessible., Explanation:, LWCs can access content asset files using the @salesforce/contentAssetUrl import., This allows components to reference content assets stored in Salesforce., Example:, import myContentAsset from '@salesforce/contentAssetUrl/My_Asset';, , Reference:, Import Content Assets, Option E: Static resources, Accessible., Explanation:, LWCs can access static resources using the @salesforce/resourceUrl import., Static resources can include JavaScript libraries, images, stylesheets, etc., Example:, import myResource from '@salesforce/resourceUrl/My_Resource';, Reference:, Import Static Resources, Options Not Applicable:, Option A: All external libraries, Not All Accessible., Explanation:, LWCs can use external JavaScript libraries, but there are restrictions., The library must be included as a static resource and must be compatible with Locker Service., Not all external libraries can be used due to security restrictions., Reference:, Third-Party Libraries, Option C: Third-party web components, Not Accessible., Explanation:, LWCs cannot import or use third-party web components due to Locker Service and namespace restrictions., Components must be within the same namespace to be used., Conclusion:, The three Salesforce resources that can be accessed from a Lightning web component are:, Option B: SVG resources, Option D: Content asset files, Option E: Static resources, ]