With Okta Retention Policy, App generated data and reporting based on log data older than how many months is automatically removed (not considering the Backup Data)?
Solution: 3 months

Which port and which of the: 'http' or SSL enabled connections does Okta recommend?
Solution: Port 443 and SSL enabled connections

On a Windows machine, which is the right behavior if you try to sign into your Okta org and agentless DSSO is properly configured for it?
Solution: You will be automatically redirected to your Load-Balancing Application, if you have one configured, enter credentials for it and then redirected back to Okta org