--- version: rssac002v4 service: a.root-servers.net start-period: '2022-12-15T00:00:00Z' metric: traffic-volume dns-udp-queries-received-ipv4: 6428298865 dns-udp-queries-received-ipv6: 1815391675 dns-tcp-queries-received-ipv4: 347745819 dns-tcp-queries-received-ipv6: 71066613 dns-udp-responses-sent-ipv4: 6238533655 dns-udp-responses-sent-ipv6: 1812411644 dns-tcp-responses-sent-ipv4: 319029503 dns-tcp-responses-sent-ipv6: 70637033