--- version: rssac002v3 service: a.root-servers.net start-period: '2021-01-05T00:00:00Z' metric: traffic-volume dns-udp-queries-received-ipv4: 5895145039 dns-udp-queries-received-ipv6: 1139805232 dns-tcp-queries-received-ipv4: 288588744 dns-tcp-queries-received-ipv6: 114973606 dns-udp-responses-sent-ipv4: 5724452337 dns-udp-responses-sent-ipv6: 1137478023 dns-tcp-responses-sent-ipv4: 276974228 dns-tcp-responses-sent-ipv6: 115291722