--- version: rssac002v4 service: a.root-servers.net start-period: '2022-05-07T00:00:00Z' metric: traffic-volume dns-udp-queries-received-ipv4: 4818899827 dns-udp-queries-received-ipv6: 1751168341 dns-tcp-queries-received-ipv4: 333830428 dns-tcp-queries-received-ipv6: 71916199 dns-udp-responses-sent-ipv4: 4686352510 dns-udp-responses-sent-ipv6: 1756664556 dns-tcp-responses-sent-ipv4: 313214535 dns-tcp-responses-sent-ipv6: 71872740