--- version: rssac002v3 service: a.root-servers.net start-period: '2019-09-13T00:00:00Z' metric: traffic-volume dns-udp-queries-received-ipv4: 6341791741 dns-udp-queries-received-ipv6: 1187119520 dns-tcp-queries-received-ipv4: 186480404 dns-tcp-queries-received-ipv6: 34385194 dns-udp-responses-sent-ipv4: 6184503649 dns-udp-responses-sent-ipv6: 1186596101 dns-tcp-responses-sent-ipv4: 183098575 dns-tcp-responses-sent-ipv6: 35427334