--- version: rssac002v4 service: a.root-servers.net start-period: '2024-04-21T00:00:00Z' metric: traffic-volume dns-udp-queries-received-ipv4: 7891848709 dns-udp-queries-received-ipv6: 1831270146 dns-tcp-queries-received-ipv4: 371781773 dns-tcp-queries-received-ipv6: 50946686 dns-udp-responses-sent-ipv4: 7744531101 dns-udp-responses-sent-ipv6: 1814528837 dns-tcp-responses-sent-ipv4: 357920790 dns-tcp-responses-sent-ipv6: 43808712