--- version: rssac002v4 service: a.root-servers.net start-period: '2021-10-25T00:00:00Z' metric: traffic-volume dns-udp-queries-received-ipv4: 5159916666 dns-udp-queries-received-ipv6: 1242966993 dns-tcp-queries-received-ipv4: 293361556 dns-tcp-queries-received-ipv6: 76263563 dns-udp-responses-sent-ipv4: 5012866906 dns-udp-responses-sent-ipv6: 1241201094 dns-tcp-responses-sent-ipv4: 290102292 dns-tcp-responses-sent-ipv6: 76145446