--- version: rssac002v3 service: a.root-servers.net start-period: '2021-05-12T00:00:00Z' metric: traffic-volume dns-udp-queries-received-ipv4: 5727207988 dns-udp-queries-received-ipv6: 1099005138 dns-tcp-queries-received-ipv4: 301247314 dns-tcp-queries-received-ipv6: 100603076 dns-udp-responses-sent-ipv4: 5671250569 dns-udp-responses-sent-ipv6: 1123916500 dns-tcp-responses-sent-ipv4: 290633349 dns-tcp-responses-sent-ipv6: 100854885