Please choose the correct ending to complete the given sentence: Computers and Electronics: [header] How to create a relational data model [title] Don't worry about tables just yet. [step] It's obvious that you're building a database, and databases (relational ones anyway) are primarily made up of tables, which are made up of rows and columns (tuples and attributes if you're really into it). [title] Worry about entity relationships.

Ending1: [step] In some cases it's a good idea to go up to the domain you're working in. [title] Once you have all the data you need, use ftp. Ending2: [step] The configuration of your own computer keeps up with this. We've got it all covered now-it's the basic operating system of the world. Ending3: [step] These are created by processes that act as a fixed base of data. And if you're worried about them, that's really not the information to worry about. Ending4: [step] Your first goal is to map out the relationships that different business objects have. This is the " logical modeling " portion.

Answer format: ending1/ending2/ending3/ending4