--- version: rssac002v3 service: a.root-servers.net start-period: '2020-12-29T00:00:00Z' metric: traffic-volume dns-udp-queries-received-ipv4: 5731641676 dns-udp-queries-received-ipv6: 1118048126 dns-tcp-queries-received-ipv4: 295914677 dns-tcp-queries-received-ipv6: 116583016 dns-udp-responses-sent-ipv4: 5561850181 dns-udp-responses-sent-ipv6: 1115980185 dns-tcp-responses-sent-ipv4: 281839034 dns-tcp-responses-sent-ipv6: 117000825