--- version: rssac002v3 service: a.root-servers.net start-period: '2020-05-06T00:00:00Z' metric: traffic-volume dns-udp-queries-received-ipv4: 7630514930 dns-udp-queries-received-ipv6: 1431694402 dns-tcp-queries-received-ipv4: 328648973 dns-tcp-queries-received-ipv6: 103144571 dns-udp-responses-sent-ipv4: 7406026100 dns-udp-responses-sent-ipv6: 1417863881 dns-tcp-responses-sent-ipv4: 324599844 dns-tcp-responses-sent-ipv6: 101197050