Little preparation is needed for the vision test, but you can take a few steps to make sure the test is accurately assessing your vision. Make sure you get a good night's sleep to make sure you're alert as possible. If you have allergies that affect your eyes, take non-drowsy medication.
The traffic signs test is not standard in all states, so if you are moving to North Carolina and getting a license, you may be surprised. Shapes of signs will be shown in a monitor, and you must identify them. A good study strategy is to use the NCDOT handbook and memorize the signs without the identifying writing on them.
The traditional written test is now given on a computer. The best stategy for passing is to take at least a week to study the NCDOT handbook. Most of the questions are phrased similarly to the handbook, so a certain amount of rote memorization will boost your odds of passing. Sample tests are available through the NCDOT website and private sites as well. Be aware that North Carolina's driving laws are not exactly the same as all other states, so make sure your use the North Carolina official handbook and it is up to date.
Driving Skills Test
The driving, or road, skills test is the final test before getting an original license and are required for original licenses. You'll be tested on 13 points of driving skills on a real-road situation. Some of the areas the test will focus on are obeying and understanding traffic signs, appropriate braking, control of the vehicle around pedestrians and knowledge of the car's lights. Also, you'll be asked to do a three point turn. Make sure you are familiar with the car you'll be using for the test and review the traffic sign section of the handbook. Practice driving in a closed area, and focus on the three point turn.