--- version: rssac002v4 service: a.root-servers.net start-period: '2022-06-02T00:00:00Z' metric: traffic-volume dns-udp-queries-received-ipv4: 6589579323 dns-udp-queries-received-ipv6: 2007376576 dns-tcp-queries-received-ipv4: 382177313 dns-tcp-queries-received-ipv6: 138298698 dns-udp-responses-sent-ipv4: 6305935607 dns-udp-responses-sent-ipv6: 2005822790 dns-tcp-responses-sent-ipv4: 313494329 dns-tcp-responses-sent-ipv6: 138323108