--- version: rssac002v3 service: a.root-servers.net start-period: '2019-12-22T00:00:00Z' metric: traffic-volume dns-udp-queries-received-ipv4: 5795795974 dns-udp-queries-received-ipv6: 830537397 dns-tcp-queries-received-ipv4: 230341965 dns-tcp-queries-received-ipv6: 69497653 dns-udp-responses-sent-ipv4: 5615339029 dns-udp-responses-sent-ipv6: 829711059 dns-tcp-responses-sent-ipv4: 226519126 dns-tcp-responses-sent-ipv6: 69562872