A Citrix Administrator configured a rewrite action: > add rewrite action sync_date replace http.res.date.sys.time. What does this rewrite action accomplish?

A Citrix Administrator configured a rewrite action: > add rewrite action sync_date replace http.res.date.sys.time. What does this rewrite action accomplish?

• A. It replaces the date header in the HTTP response with the Citrix ADC system time in a conventional date format.
• B. It replaces the date header in the HTTP response with GMT time stamp.
• C. It replaces the Citrix ADC system time with the date header in a conventional date format.
• D. It is invalid, as system time cannot be referenced in system policy.

Answer: (A)

This rewrite action changes the HTTP response header, not the body or status. It sets the Date header to the Citrix ADC’s current system time, formatted in the conventional HTTP date format (the standard RFC 1123 style, which is expressed in GMT). In other words, the response will carry a Date header that reflects the ADC’s clock, formatted as a typical HTTP date string like Tue, 07 Feb 2023 12:34:56 GMT. This is why it’s described as replacing the date header with the ADC system time in a conventional date format. It does not alter the backend time or other parts of the response, and it’s specifically focused on the Date header.

This rewrite action changes the HTTP response header, not the body or status. It sets the Date header to the Citrix ADC’s current system time, formatted in the conventional HTTP date format (the standard RFC 1123 style, which is expressed in GMT). In other words, the response will carry a Date header that reflects the ADC’s clock, formatted as a typical HTTP date string like Tue, 07 Feb 2023 12:34:56 GMT. This is why it’s described as replacing the date header with the ADC system time in a conventional date format. It does not alter the backend time or other parts of the response, and it’s specifically focused on the Date header.