--- version: rssac002v4 service: a.root-servers.net start-period: '2023-01-06T00:00:00Z' metric: traffic-volume dns-udp-queries-received-ipv4: 6443982671 dns-udp-queries-received-ipv6: 2169888468 dns-tcp-queries-received-ipv4: 362584268 dns-tcp-queries-received-ipv6: 192076810 dns-udp-responses-sent-ipv4: 6103030091 dns-udp-responses-sent-ipv6: 1994776610 dns-tcp-responses-sent-ipv4: 320778726 dns-tcp-responses-sent-ipv6: 175393569