Dining table, mortise and tenon?

[torontohouse]

First post here. I am looking to buy a dining table and read here that mortise and tenon represents good craftsmanship, so I am also trying to understand how mortise and tenon work on dining table. I understand mortise and tenon construction is usually applied on table legs and apron, but how does legs and apron connected to the tabletop? Do they need to dig holes on the back of tabletop?

In addition, I found a custom furniture maker who can make mortise and tenon construction. He told me that he constantly makes mortise and tenon tables and chairs. But he would suggest use screws and clips to connect the base with tabletop, so it will be easier to remove it for moving. Is this a solid construction?

I am looking at a modern looking table like this , no apron, 2 legs and a board attaching the tabletop and floor.