An administrator is setting up a secure web application and needs to allow internet users to access it without compromising security. If connections on port 443 are intermittently failing, which configuration should the administrator review to troubleshoot this issue?
Inspect inbound rule sets for port 53 to guarantee DNS resolution
Ensure consistent allow rules are in place for port 443 and review QoS settings
Allow all traffic on port 80 to ensure web access
Redirect all port 443 traffic to port 21 for improved security