What are the three data types available when a developer is loading data from an external file using the data loading activity? Choose the three correct answers

A client wants to ensure that their company logo appears in every email that is sent. What typology rule typology rule type would a developer use to make this check?

A developer configures two split activities (Split1 and Split2). Each split has only one resulting segment. The population of the first split is the input population of the second. The segmentCode is configured on the splits as follows:
Split 1
Name: Split1
segmentCode = 'segment1' Split 2
Name: Split2
segmentCode = 'segment2'
All splits and subsequent segments result in records. The Campaign developer turns on the Concatenate the code of each segment with the code found in the input population option of the second split What is the resulting segmentCode value?

A developer is building a campaign that will notify customers of quarterly discounts. The same workflow will be re-used once each quarter with the same (dynamic) delivery content. The manager wants to have separated tracking logs and reports for each quarter's communications so that the seasonality of interactivity can be easily compared.
Which is the best activity to use fc the delivery in question?

A developer wishes to merge the value of two different columns within the target dimension. @firstChild & @secondChild, into one column separated by a space. What is the tight expression for this use case?