--- version: rssac002v3 service: a.root-servers.net start-period: '2020-02-11T00:00:00Z' metric: traffic-volume dns-udp-queries-received-ipv4: 7573466368 dns-udp-queries-received-ipv6: 1046048562 dns-tcp-queries-received-ipv4: 280730326 dns-tcp-queries-received-ipv6: 75882632 dns-udp-responses-sent-ipv4: 7376975601 dns-udp-responses-sent-ipv6: 1041991051 dns-tcp-responses-sent-ipv4: 266573613 dns-tcp-responses-sent-ipv6: 75979066