An org has a requirement that the Shipping Address on the Account must be validated by a third-party web service, before the Account is allowed to be inserted.
What is the optimal way to meet this requirement?

Which tag should a developer use to display different text while an <apex:commandButton> is executing versus not executing?

A company has a Lightning Page with many Lightning Components, some that cache reference dat
a. It is reported that the page does not always show the most current reference data. What can a developer use to analyze and diagnose the problem in the Lightning Page?

What Visualforce tag can be used to display custom messages in pages using the Salesforce Ul styling for errors, warnings, and other types of messages?

Consider the following code snippet:

The Apex method is executed in an environment with a large data volume count for Accounts, and the query Is performing poorly.
Which technique should the developer Implement to ensure the query performs optimally, while preserving the entire result set?