--- version: rssac002v4 service: a.root-servers.net start-period: '2023-01-23T00:00:00Z' metric: traffic-volume dns-udp-queries-received-ipv4: 6217121300 dns-udp-queries-received-ipv6: 1673122390 dns-tcp-queries-received-ipv4: 363739379 dns-tcp-queries-received-ipv6: 92984651 dns-udp-responses-sent-ipv4: 5907594096 dns-udp-responses-sent-ipv6: 1574951645 dns-tcp-responses-sent-ipv4: 321544497 dns-tcp-responses-sent-ipv6: 80756951