--- version: rssac002v4 service: a.root-servers.net start-period: '2022-06-07T00:00:00Z' metric: traffic-volume dns-udp-queries-received-ipv4: 5718194726 dns-udp-queries-received-ipv6: 1840379550 dns-tcp-queries-received-ipv4: 366482257 dns-tcp-queries-received-ipv6: 63000265 dns-udp-responses-sent-ipv4: 5433685268 dns-udp-responses-sent-ipv6: 1838831215 dns-tcp-responses-sent-ipv4: 297960474 dns-tcp-responses-sent-ipv6: 63128702