This question about conversion before a Reform beit din made me wonder about other cases: what does the examination of a prospective ger by an Orthodox beit din look like today? Does the beit din test the ger's knowledge, or will that have been done in advance? Do they ask the ger questions about his motivations? What else? Do they require demonstration of any skills (e.g. davening)?
My only point of reference is what I know about how the Reform movement does it (see the linked question), and I'm now curious about how the beit din's examination differs between them and others. (Obviously what are considered satisfactory answers or kosher members will differ; I'm not asking about that.)