As part of a custom development, a developer creates a Lightning Component to show how a particular opportunity progresses over time. The component must display the date stamp when any of the following fields change:
* Amount Probability, Stage, or Close Date
What is the most efficient way to Query such information?

A company has the Lightning Component above that allows users to dick a button to save their changes and redirects them to a different page. Currently, when the user hits the Save button the records are getting saved, but they are not redirected.
Which three techniques can a developer use to debug the JavaScript? Choose 3 answers

A developer is developing a reuseable Aura Component that will reside on an sObject Lightning Page with the following HTML snippet:
<aura:component implements="force:hasRecordId,flexipage:availableForAIIPageTypesM>
<div>Hello!</div>
</aura:component>
How can the component's Controller get the context of the Lightning Page that the sObject is on without requiring additional test coverage?

A developer wrote a trigger on Opportunity that will update a custom Last Sold Date field on the Opportunity's Account whenever an Opportunity is dosed. In the test class for the trigger, the assertion to validate the Last Sold Date field fails.
What might be causing the failed assertion?

A developer is writing a Jest for a Lightning web component that conditionally displays child components based on a user's checkbox selections.
What should the developer do to property test that the correct components display and hide for each scenario?