Which information in the HTTP request is used to determine if it is subject to the referrer exceptions feature in the Cisco WSA?
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A. B. C. D.C.
Requests for embedded content usually include the address of the site from which the request originated (this is known as the "referer" field in the request's HTTP header)
This header information is used to determine categorization of the referred content.
Reference - https://www.cisco.com/c/en/us/td/docs/security/wsa/wsa11-0/user_guide/b_WSA_UserGuide/b_WSA_UserGuide_chapter_01100.html.
The Referrer Exceptions feature in Cisco Web Security Appliance (WSA) is used to allow or block web requests based on the HTTP referer header. The referer header is a part of the HTTP request that indicates the URL of the page that referred the user to the current page.
When a user makes a request for a web page, the WSA intercepts the request and checks whether the request is subject to the Referrer Exceptions feature. To determine this, the WSA examines the HTTP header of the request to look for the presence of a referer header.
Therefore, the answer to the question "Which information in the HTTP request is used to determine if it is subject to the referrer exceptions feature in the Cisco WSA?" is option C, header. The HTTP header is the part of the HTTP request that contains information about the client, server, request, and response. It includes various fields such as the user agent, cookies, host, accept, and referer headers, among others.
In summary, the referer header is used to determine if the request is subject to the Referrer Exceptions feature, and it is part of the HTTP header. Therefore, the correct answer is C, header.