--- version: rssac002v3 service: a.root-servers.net start-period: '2021-02-02T00:00:00Z' metric: traffic-volume dns-udp-queries-received-ipv4: 5989224515 dns-udp-queries-received-ipv6: 1258419563 dns-tcp-queries-received-ipv4: 288336667 dns-tcp-queries-received-ipv6: 122492090 dns-udp-responses-sent-ipv4: 5801332774 dns-udp-responses-sent-ipv6: 1257001878 dns-tcp-responses-sent-ipv4: 278175167 dns-tcp-responses-sent-ipv6: 122934333