--- version: rssac002v3 service: a.root-servers.net start-period: '2020-06-01T00:00:00Z' metric: traffic-volume dns-udp-queries-received-ipv4: 8000816115 dns-udp-queries-received-ipv6: 1563292867 dns-tcp-queries-received-ipv4: 276707429 dns-tcp-queries-received-ipv6: 109315653 dns-udp-responses-sent-ipv4: 7790037319 dns-udp-responses-sent-ipv6: 1559339181 dns-tcp-responses-sent-ipv4: 260280935 dns-tcp-responses-sent-ipv6: 108981495