--- version: rssac002v4 service: a.root-servers.net start-period: '2023-07-12T00:00:00Z' metric: traffic-volume dns-udp-queries-received-ipv4: 6279559379 dns-udp-queries-received-ipv6: 1620543571 dns-tcp-queries-received-ipv4: 325581000 dns-tcp-queries-received-ipv6: 53750006 dns-udp-responses-sent-ipv4: 6152756126 dns-udp-responses-sent-ipv6: 1598027327 dns-tcp-responses-sent-ipv4: 326092843 dns-tcp-responses-sent-ipv6: 46885129