--- version: rssac002v3 service: a.root-servers.net start-period: '2020-06-21T00:00:00Z' metric: traffic-volume dns-udp-queries-received-ipv4: 7873815772 dns-udp-queries-received-ipv6: 1436203730 dns-tcp-queries-received-ipv4: 248440352 dns-tcp-queries-received-ipv6: 78105884 dns-udp-responses-sent-ipv4: 7594903484 dns-udp-responses-sent-ipv6: 1434197796 dns-tcp-responses-sent-ipv4: 231025836 dns-tcp-responses-sent-ipv6: 78469772