--- version: rssac002v3 service: a.root-servers.net start-period: '2021-03-22T00:00:00Z' metric: traffic-volume dns-udp-queries-received-ipv4: 5448756913 dns-udp-queries-received-ipv6: 1108896877 dns-tcp-queries-received-ipv4: 303405749 dns-tcp-queries-received-ipv6: 108352870 dns-udp-responses-sent-ipv4: 5274477433 dns-udp-responses-sent-ipv6: 1106414773 dns-tcp-responses-sent-ipv4: 290553812 dns-tcp-responses-sent-ipv6: 108653532