--- version: rssac002v4 service: a.root-servers.net start-period: '2023-07-18T00:00:00Z' metric: traffic-volume dns-udp-queries-received-ipv4: 6748938281 dns-udp-queries-received-ipv6: 1545772376 dns-tcp-queries-received-ipv4: 340423200 dns-tcp-queries-received-ipv6: 49368320 dns-udp-responses-sent-ipv4: 6579411211 dns-udp-responses-sent-ipv6: 1535420804 dns-tcp-responses-sent-ipv4: 325836921 dns-tcp-responses-sent-ipv6: 46268845