I took the test when I lived in Sonoma county California. Over 600 people were tested for one position. It was crazy. It was 4 hours long. We had to listen to 911 calls and were questioned about the details after. Sounds easy but it just got harder and harder. If you can multi task, are detail oriented and can stay calm during stressful situations give it a try. I did well on the test but wasn't considered because I had lost my 7 yr old brother in a tragic accident and they thought it would be too hard on me emotionally. Good luck!
To become a 911 dispatcher, you need to take a test known as the P.O. Public Safety Dispatcher Examination. Under the test guidelines, you should possess verbal ability, reasoning ability, perceptual ability and memory ability. In addition to the selection standards, each public safety agency will have additional requirements.