--- version: rssac002v3 service: a.root-servers.net start-period: '2019-06-05T00:00:00Z' metric: traffic-volume dns-udp-queries-received-ipv4: 5991756144 dns-udp-queries-received-ipv6: 1154050464 dns-tcp-queries-received-ipv4: 147713303 dns-tcp-queries-received-ipv6: 29846190 dns-udp-responses-sent-ipv4: 5859419021 dns-udp-responses-sent-ipv6: 1153530349 dns-tcp-responses-sent-ipv4: 143234928 dns-tcp-responses-sent-ipv6: 30543724