Scenario: A Citrix Administrator is configuring RSA as a two-factor authentication solution, using default settings on the NetScaler. While testing the configuration, the administrator notices that…

Scenario: A Citrix Administrator is configuring RSA as a two-factor authentication solution, using default settings on the NetScaler. While testing the configuration, the administrator notices that users cannot log on. The administrator should verify that traffic is allowed to flow over __________ through the firewall to resolve this issue. (Choose the correct option to complete the sentence.)