--- version: rssac002v3 service: a.root-servers.net start-period: '2020-01-09T00:00:00Z' metric: traffic-volume dns-udp-queries-received-ipv4: 6985852191 dns-udp-queries-received-ipv6: 955222951 dns-tcp-queries-received-ipv4: 262241862 dns-tcp-queries-received-ipv6: 72372040 dns-udp-responses-sent-ipv4: 6783604528 dns-udp-responses-sent-ipv6: 945404494 dns-tcp-responses-sent-ipv4: 247417740 dns-tcp-responses-sent-ipv6: 72501809