Which two steps are necessary to configure global server load balancing (GSLB) service selection using content switching (CS)? (Choose two.)

A Citrix Administrator configured an external syslog server but is NOT seeing detailed TCP information?
What could be causing this?

Scenario: A Citrix Administrator configured a load-balancing vServer. The URL for this vServer is vpn.citrix.com. The backend server has the host name configured as server1.citrix.com.
The administrator needs to implement the policy to change the host name from vpn.citrix.com to server1.citrix.com, and vice versa.
Which does the administrator need to configure to meet this requirement?

Scenario: Users are trying to access https://cs.mycompany.com, but are receiving the error below:
HTTP 503 Service Unavailable
What can a Citrix Administrator change in the Citrix ADC configuration to fix this?

A Citrix Administrator needs to configure a rate-limiting policy setting DNS requests to a threshold of 1,000 per second.
Which command does the administrator need to run to correctly configure this policy?