--- version: rssac002v4 service: a.root-servers.net start-period: '2022-12-28T00:00:00Z' metric: traffic-volume dns-udp-queries-received-ipv4: 6323290369 dns-udp-queries-received-ipv6: 1863193205 dns-tcp-queries-received-ipv4: 328196808 dns-tcp-queries-received-ipv6: 73932460 dns-udp-responses-sent-ipv4: 6147499892 dns-udp-responses-sent-ipv6: 1817780595 dns-tcp-responses-sent-ipv4: 299494697 dns-tcp-responses-sent-ipv6: 72985700