--- version: rssac002v3 service: a.root-servers.net start-period: '2020-12-13T00:00:00Z' metric: traffic-volume dns-udp-queries-received-ipv4: 5970559448 dns-udp-queries-received-ipv6: 1126402377 dns-tcp-queries-received-ipv4: 278245526 dns-tcp-queries-received-ipv6: 101852553 dns-udp-responses-sent-ipv4: 5812329556 dns-udp-responses-sent-ipv6: 1124868201 dns-tcp-responses-sent-ipv4: 266815202 dns-tcp-responses-sent-ipv6: 102151218