Which three Citrix Gateway elements can be configured by the Citrix Gateway Wizard? (Choose three.)

Scenario: A Citrix Administrator configured Citrix ADC load balancing to send requests to one of three identical backend servers. Each server handles multiple protocols, and load balancing is set up in round-robin mode. The current load-balancing setup on the Citrix ADC is:
- One load-balancing virtual server with one externally accessible VIP One service created for each protocol type
- One server entity for each backend resource
- During business hours, the administrator wants to make changes to one backend server without affecting the other servers What is the most efficient way for the administrator to ensure that all traffic is routed away from the server without impeding responses from other resources?

What can a Citrix Administrator use to restrict access to the Citrix ADC management IP (NSIP) address?

What can a Citrix Administrator configure to filter IPv4 addresses?

Which two features can a Citrix Administrator use to allow secure external access to a sensitive company web server that is load-balanced by the Citrix ADC? (Choose two.)