--- version: rssac002v3 service: a.root-servers.net start-period: '2020-05-31T00:00:00Z' metric: traffic-volume dns-udp-queries-received-ipv4: 7618977050 dns-udp-queries-received-ipv6: 1626967773 dns-tcp-queries-received-ipv4: 306207494 dns-tcp-queries-received-ipv6: 174341643 dns-udp-responses-sent-ipv4: 7425110702 dns-udp-responses-sent-ipv6: 1622649073 dns-tcp-responses-sent-ipv4: 292701487 dns-tcp-responses-sent-ipv6: 205180858