--- version: rssac002v3 service: a.root-servers.net start-period: '2020-05-01T00:00:00Z' metric: traffic-volume dns-udp-queries-received-ipv4: 7900186538 dns-udp-queries-received-ipv6: 1430595622 dns-tcp-queries-received-ipv4: 347910091 dns-tcp-queries-received-ipv6: 108994764 dns-udp-responses-sent-ipv4: 7667620745 dns-udp-responses-sent-ipv6: 1423557634 dns-tcp-responses-sent-ipv4: 340587163 dns-tcp-responses-sent-ipv6: 109116032