A new custom object called invoices needs to have an invoice date for the date and time it was invoiced. What field type should be selected for this?

Universal Containers needs to update a field on an Account when an Opportunity Stage is changed to Closed Lost.
Which two should be used to accomplish this requirement? (Choose two.)

What type of sandbox should you use for full performance and load testing?

Universal Containers wants the sales reps to clean up its Salesforce customer contacts using the Contacts tab.
Which two solutions can be used to support and simplify this process using a list view? Choose 2 answers

Universal Containers (UC) maintains information for over 2 million assets in an external system. UC needs to access these assets in real-time data in Salesforce and is nearing the data storage limits.
What feature could an app builder recommend UC use?