It varies A LOT from place to place. When I was teaching in Oklahoma, they did a lot of physical tests....skipping, balance beam etc., plus the typical letters, numbers, etc. They brought the kids to a gym and the went through stations.
When DS15 was starting Kindergarten we were in Louisiana. A teacher took him away for a while....maybe 30 min... and came back with him and said he knew most of what they would be teaching the next year. He was a reader, big time, She said he was even reading what she wrote about him on the form. She said she finally started writing in cursive and he couldn't read that

They had him do simple math, letter recognition, etc.
DS12 started Kindergarten in Texas. I don't think there was any screening! I don't recall anything at all.
DS10 started Kindergarten here, in Doha Qatar. So it was a private American School. They mostly were looking for them to seperate easily from the parent, follow directions, and speak English. They also had him count teddy bears (one-to-one correspondence), identify colors, letter recognition, etc. but not much.
I think you need to speak to someone in your school district and find out what it will be. Then you and she will be prepared!
Katy