--- version: rssac002v3 service: a.root-servers.net start-period: '2020-02-16T00:00:00Z' metric: traffic-volume dns-udp-queries-received-ipv4: 7102556084 dns-udp-queries-received-ipv6: 969769346 dns-tcp-queries-received-ipv4: 277074905 dns-tcp-queries-received-ipv6: 72208102 dns-udp-responses-sent-ipv4: 6930578808 dns-udp-responses-sent-ipv6: 968323492 dns-tcp-responses-sent-ipv4: 262771930 dns-tcp-responses-sent-ipv6: 72260205