What certified measurement means?

The certified measurement is a cycle composed of 6 time-diversified tests carried out during a period of one calendar day and meet the prescribed measurement conditions. A measuring framework takes 1 hour and 30 minutes. Within the test, individual measurements are carried out automatically, having duration of 10 seconds for each direction of data communication (download and upload). The time spacing between individual tests is 15 minutes. CTU recommends using the CTU-NetTest tool in the mode of certified measurement of IASs up to advertised speeds (incl.).