--- version: rssac002v3 service: a.root-servers.net start-period: '2018-08-24T00:00:00Z' metric: traffic-volume dns-udp-queries-received-ipv4: 3650613419 dns-udp-queries-received-ipv6: 638764555 dns-tcp-queries-received-ipv4: 113109721 dns-tcp-queries-received-ipv6: 21132526 dns-udp-responses-sent-ipv4: 3553408980 dns-udp-responses-sent-ipv6: 638299440 dns-tcp-responses-sent-ipv4: 109211928 dns-tcp-responses-sent-ipv6: 21174026