Posted by: Pdfprep Category: GISP Tags: GIAC Information Security, GISP exam questions, GISP practice exam Post Date: October 18, 2020 Pdfprep2020-10-18T02:05:28+00:00 Which of the following is an authentication protocol?A . LDAPB . PPTPC . TLSD . Kerberos View Answer Answer: D Prev QuestionNext Question Author Pdfprep