Does endo- and (or) exocytosis require energy? Do they belong to active / passive transport?
Wikipedia is your friend:


  Exocytosis... is the durable, energy-consuming process by which a cell directs the contents of secretory vesicles out of the cell membrane and into the extracellular space.


and


  Endocytosis is an energy-using process by which cells absorb molecules (such as proteins) by engulfing them.


Emphasis mine.  Here's a nifty paper which gave some evidence a few decades ago for some basic intracellular thresholds for budding and fusion, and this paper shows that endocytosis definitely requires ATP, using a novel assay.  Check the sources, too, some of them are excellent.