What IP protocol number is used in the protocol field of an IPv4 header, when IPv4 is used to tunnel IPv6 packets?
Which configuration implements an ingress traffic filter on a dual-stack ISR border router to prevent attacks from the outside to services such as DNSv6 and DHCPv6?
Which two security measures are provided when you configure 802.1X on switchports that connect to corporate-controlled wireless access points?
Which option explains the passive scan technique that is used by wireless clients to discover available wireless networks?