--- version: rssac002v4 service: a.root-servers.net start-period: '2023-02-21T00:00:00Z' metric: traffic-volume dns-udp-queries-received-ipv4: 7376319618 dns-udp-queries-received-ipv6: 2228236144 dns-tcp-queries-received-ipv4: 365780354 dns-tcp-queries-received-ipv6: 122031089 dns-udp-responses-sent-ipv4: 6801517325 dns-udp-responses-sent-ipv6: 1876242835 dns-tcp-responses-sent-ipv4: 300757528 dns-tcp-responses-sent-ipv6: 95393547