For the Tennessee permit test, if i study the practice tests online will i be able to pass it?

My son took the driver's permit test about 6-7 months ago in TN. He studied the test online..all 3 or 4 sections, and passed with flying colors. He would go over and over the questions until he got all of them right. Most of those questions are on the computerized test at the driver's station. You'll do great..God Bless!