--- version: rssac002v4 service: a.root-servers.net start-period: '2023-12-27T00:00:00Z' metric: traffic-volume dns-udp-queries-received-ipv4: 7753328726 dns-udp-queries-received-ipv6: 1512434340 dns-tcp-queries-received-ipv4: 421994875 dns-tcp-queries-received-ipv6: 74757752 dns-udp-responses-sent-ipv4: 7577228040 dns-udp-responses-sent-ipv6: 1484037562 dns-tcp-responses-sent-ipv4: 398390420 dns-tcp-responses-sent-ipv6: 61416354