ArindamLucky – I am sorry that you had to go through this issue. I can completely understand the frustration you have gone through. Given the number of interruptions, I am pretty certain that your official score is not representative of your true ability. So, if I were you, I would not doubt myself.
Having said that, here are some things that you can do make your exam experience better. These inputs come from my personal experience of having worked in technology and from my daughter’s experience of taking 15 exams (school, not the GMAT) using Examity’s secure browser. For your information, she uses a surface book (8 GB Ram, and 6th gen i7). She has not faced any issue till date with her system.
And while your exam is done, there are others who may benefit from the same.
Your computer
Your computer is powerful enough for the task. Just make sure that you kill all background processes including 1) company VPN (if any) 2) Drive sync (Dropbox, google drive, Onedrive), 3) Any application update programs (adobe, microsoft’s, etc.). The goal here is to disable any application that uses bandwidth.
Your networkLet me add some context here: During your exam, your network needs to satisfy two constraints:
1. It needs to be able to transfer a total of 23 Gigabits of data from your computer to Examity’s server (worst case calculation: 2Mbits X3600sX3.25).
2. It needs to be able to do this consistently. A few seconds of blackout could cause an interruption.
Hence, given this huge amount of data, the best thing you can do is to get a long ethernet cable. As a former engineer who designed wireless systems, I do not trust Wireless to be able to transmit this amount of data consistently over 4 hours unless you have a hot redundant connection (i.e. wifi 802.11 ac or wifi 6 standard at both ends) and a router that can handle this much uplink data. Even with all the advancements in Wifi, it is not even half as good as a wired ethernet connection (maybe in 3 years, but not today) when it comes to long-term reliability.
Now you may argue .. how come it is good enough for watching a move.. well because
1) You are downloading a movie and not uploading a movie. Your ISP treats both these links differently.
2) To download a movie, you do not need a high quality connection, you just need a high capacity connection.
Using Dongles
Do not use dongles. Cellular architecture (at least in the developing world) is not designed to provide consistently high upload speeds.
How can you test your connection?
Here is one test.. (again not the definitive test, but one test). Take a 1.6 GB file and upload it on YouTube. Check the upload speed. If it goes below 1Mbps for more than 15 seconds the it is an indication that you may face issues. Also, this does not replace your standard examity application test but it does stress test your system a bit better. Do this test a few times and you can estimate the likelihood whether you test will get interrupted.
Another test would be to use create a free Gotomeeting account and use it with your webcam and with a moving subject for 30-50 mins. Remember GoToMeeting uses 2Mbps when you have a single webcam in the meeting.
https://support.goto.com/meeting/help/h ... -g2m010029While the above does not guarantee an interruption-free experience, it can help you iron out any issues with your current setup.
-Rajat