--- version: rssac002v3 service: a.root-servers.net start-period: '2019-08-14T00:00:00Z' metric: traffic-volume dns-udp-queries-received-ipv4: 6756802871 dns-udp-queries-received-ipv6: 1534567393 dns-tcp-queries-received-ipv4: 180767199 dns-tcp-queries-received-ipv6: 34872972 dns-udp-responses-sent-ipv4: 6604461266 dns-udp-responses-sent-ipv6: 1533254729 dns-tcp-responses-sent-ipv4: 175895938 dns-tcp-responses-sent-ipv6: 35475312