Which type of authentication realm does not require communication with an external authentication server?
Answer : C
What can proxy servers do? (Choose three.)
Answer : ACD
Reference:
https://origin-symwisedownload.symantec.com/resources/webguides/proxysg/security_first_steps/Content/PDFs/Malware_Prevention_Solution.pdf
From the connection information section of a policy trace, you can see:
Answer : C
On the ProxySG, can more than one authentication realm be active at any given time?
Answer : B