What parameter should a developer include to ensure the MobileConnect Contact is tied to the Email Contact when making a QueueMO call for an existing email subscriber?

Northern Trail Outfitters sends a weekly email with dynamic content, and they want to record custom data inside a send log on each send to record what content was displayed and correlation flags.
What is the maximum number of custom data points recommended by Salesforce to ensure sends speeds are not affected when inserting into the built-in send log?

In which three ways should a developer optimize a query activity if it is currently timing out? Choose 3

Which AMPscript function returns the result of interpreted code within a code block and includes the result in the rendered content, where the code block is located?

A developer is creating a custom preference center and wants to log unsubscribe events from the CloudPage. Which set of parameters should be captured and provided to the LongUnsubEvent Execute Call to ensure accurate unsubscribe information?