Which of the following port numbers have to be open for AWS workspaces to function properly. Choose 3 answers from the options below

Answer options:

A.Port 443
B.Port 22
C.Port 53
D.Port 80

Answer – A ,C and D
The following major ports need to be open for AWS Workspaces
1. Port 443 (TCP) - This port is used for client application updates, registration, and authentication. The desktop client applications support the use of a proxy server for port 443 (HTTPS) traffic.
2. Port 53 (UDP) - This port is used to access DNS servers
3. Port 80 (UDP and TCP) - This port is used for initial connections to http://clients/amazonworkspaces.com, which then switch to HTTPS
For more information on the port requirements, please visit the below link:
http://docs.aws.amazon.com/workspaces/latest/adminguide/workspaces-port-requirements.html