--- version: rssac002v4 service: a.root-servers.net start-period: '2022-07-25T00:00:00Z' metric: traffic-volume dns-udp-queries-received-ipv4: 6267520659 dns-udp-queries-received-ipv6: 2122533354 dns-tcp-queries-received-ipv4: 445167255 dns-tcp-queries-received-ipv6: 76338296 dns-udp-responses-sent-ipv4: 5864159693 dns-udp-responses-sent-ipv6: 2117688127 dns-tcp-responses-sent-ipv4: 370042552 dns-tcp-responses-sent-ipv6: 75939530