--- version: rssac002v3 service: a.root-servers.net start-period: '2020-06-18T00:00:00Z' metric: traffic-volume dns-udp-queries-received-ipv4: 8221432184 dns-udp-queries-received-ipv6: 1652463122 dns-tcp-queries-received-ipv4: 266750727 dns-tcp-queries-received-ipv6: 90526085 dns-udp-responses-sent-ipv4: 7984552238 dns-udp-responses-sent-ipv6: 1650282816 dns-tcp-responses-sent-ipv4: 250673042 dns-tcp-responses-sent-ipv6: 91219126