--- version: rssac002v3 service: a.root-servers.net start-period: '2020-12-30T00:00:00Z' metric: traffic-volume dns-udp-queries-received-ipv4: 5650400979 dns-udp-queries-received-ipv6: 1229802229 dns-tcp-queries-received-ipv4: 298768720 dns-tcp-queries-received-ipv6: 164166510 dns-udp-responses-sent-ipv4: 5481525099 dns-udp-responses-sent-ipv6: 1227776210 dns-tcp-responses-sent-ipv4: 285074436 dns-tcp-responses-sent-ipv6: 164599469