--- version: rssac002v4 service: a.root-servers.net start-period: '2022-07-21T00:00:00Z' metric: traffic-volume dns-udp-queries-received-ipv4: 6371276803 dns-udp-queries-received-ipv6: 1929403828 dns-tcp-queries-received-ipv4: 370435681 dns-tcp-queries-received-ipv6: 57051558 dns-udp-responses-sent-ipv4: 5946600619 dns-udp-responses-sent-ipv6: 1923747427 dns-tcp-responses-sent-ipv4: 294548813 dns-tcp-responses-sent-ipv6: 56118479