--- version: rssac002v4 service: a.root-servers.net start-period: '2022-07-28T00:00:00Z' metric: traffic-volume dns-udp-queries-received-ipv4: 6143775355 dns-udp-queries-received-ipv6: 2018394734 dns-tcp-queries-received-ipv4: 439592063 dns-tcp-queries-received-ipv6: 73673590 dns-udp-responses-sent-ipv4: 5774167656 dns-udp-responses-sent-ipv6: 2013194446 dns-tcp-responses-sent-ipv4: 363846455 dns-tcp-responses-sent-ipv6: 73488180