A company has a web page that needs to get Account record information, given its Salesforce record ID, from JavaScript on the page and then display it. Which method of integration is optimal?

A developer is writing unit tests for the following method:

Which assertion would be used in a negative test case?

An Apex Trigger creates a Contract record every time an Opportunity record is marked as Closed and Won.
This trigger is working great, except (due to a recent acquisition) historical Opportunity records need to be loaded into the Salesforce instance. When a test batch of records are loaded, the Apex Trigger creates Contract records. A developer is tasked with preventing Contract records from being created when mass loading the Opportunities, but the daily users still need to have the Contract records created. What is the most extendable way to update the Apex Trigger to accomplish this?

A developer must create a custom pagination solution. Users will access the solution on a mobile device and will rarely access subsequent pages of records. Performance is crucial. Which approach is optimal?

Which statement is true about using ConnectApi namespace (also called Chatter in Apex)? (Choose two.)