--- version: rssac002v4 service: a.root-servers.net start-period: '2023-05-07T00:00:00Z' metric: traffic-volume dns-udp-queries-received-ipv4: 6738022380 dns-udp-queries-received-ipv6: 2038082611 dns-tcp-queries-received-ipv4: 419395005 dns-tcp-queries-received-ipv6: 149048524 dns-udp-responses-sent-ipv4: 6206878476 dns-udp-responses-sent-ipv6: 1635454506 dns-tcp-responses-sent-ipv4: 372595904 dns-tcp-responses-sent-ipv6: 113471675