--- version: rssac002v3 service: a.root-servers.net start-period: '2018-09-27T00:00:00Z' metric: traffic-volume dns-udp-queries-received-ipv4: 4244531039 dns-udp-queries-received-ipv6: 674968492 dns-tcp-queries-received-ipv4: 116589709 dns-tcp-queries-received-ipv6: 25708143 dns-udp-responses-sent-ipv4: 4123237496 dns-udp-responses-sent-ipv6: 674640767 dns-tcp-responses-sent-ipv4: 112937838 dns-tcp-responses-sent-ipv6: 25694614