--- version: rssac002v4 service: a.root-servers.net start-period: '2023-12-21T00:00:00Z' metric: traffic-volume dns-udp-queries-received-ipv4: 8113962191 dns-udp-queries-received-ipv6: 1669791447 dns-tcp-queries-received-ipv4: 429404082 dns-tcp-queries-received-ipv6: 76259205 dns-udp-responses-sent-ipv4: 7931705822 dns-udp-responses-sent-ipv6: 1642012335 dns-tcp-responses-sent-ipv4: 405118993 dns-tcp-responses-sent-ipv6: 63243426