--- version: rssac002v3 service: a.root-servers.net start-period: '2020-12-15T00:00:00Z' metric: traffic-volume dns-udp-queries-received-ipv4: 8760300524 dns-udp-queries-received-ipv6: 2095717518 dns-tcp-queries-received-ipv4: 311573363 dns-tcp-queries-received-ipv6: 117190129 dns-udp-responses-sent-ipv4: 8558814785 dns-udp-responses-sent-ipv6: 2090243380 dns-tcp-responses-sent-ipv4: 297503848 dns-tcp-responses-sent-ipv6: 116481372