--- service: a.root-servers.net start-period: '2016-11-28T00:00:00Z' end-period: '2016-11-28T23:59:59Z' metric: traffic-volume dns-udp-queries-received-ipv4: 4919045035 dns-udp-queries-received-ipv6: 454570860 dns-tcp-queries-received-ipv4: 200920102 dns-tcp-queries-received-ipv6: 10781855 dns-udp-responses-sent-ipv4: 4901996985 dns-udp-responses-sent-ipv6: 454367677 dns-tcp-responses-sent-ipv4: 201865395 dns-tcp-responses-sent-ipv6: 11012322