You are deploying a web server in a Windows environment and are tasked with ensuring that internal clients can access the resources hosted on the server via an internet browser. Firewall ports have been opened for 80, 443, 20, 21 and 23. Your server is running Windows Server 2012 R2 and it is configured with teamed NICs. Which service is most likely needed on this server?
1) NLB
2) VDI
3) IIS
4) NPS