The 'technical rehearsal' is designed to test readiness based on the three busiest days of the Games, which are expected to be August 9, 10, and 12.
During the final technical rehearsal, nearly 1,000 different scenarios were tested out including a flood, network disconnection, power failures, changes to the competition schedule, and security attacks -- across the 22 Olympic venues.
Although the Rio Olympics doesn't start until August, the services that underpin it are already being used: last month the first of 300,000 accreditations for media, athletes, sports officials, and sponsors were issued.
And from 25 July, the Technology Operations Centre will be at full capacity with 500 staff covering 187 positions to manage and monitor the technology infrastructure and systems.
Elly Resende, Rio 2016 technology director, said: "By simulating real events at real venues under conditions very close to those during the actual games allows us to fully prepare all the key players involved to ensure a successful Olympic Games."