What is the difference between topographic surveys and horizontal control surveys?

This is simply a subjective question where you have to tell the difference between topographic surveys and horizontal control surveys. Try not to be too detailed but not to brief as well. This is not a one liner question and on the same hand its not even an essay type question where you have to make up a whole 1 hour story for the interviewer, so focus on telling the difference in the best way possible.