--- version: rssac002v3 service: a.root-servers.net start-period: '2018-11-21T00:00:00Z' metric: traffic-volume dns-udp-queries-received-ipv4: 4505367455 dns-udp-queries-received-ipv6: 728348403 dns-tcp-queries-received-ipv4: 152426021 dns-tcp-queries-received-ipv6: 30938715 dns-udp-responses-sent-ipv4: 4394869332 dns-udp-responses-sent-ipv6: 727741201 dns-tcp-responses-sent-ipv4: 149291086 dns-tcp-responses-sent-ipv6: 31111561