--- version: rssac002v4 service: a.root-servers.net start-period: '2023-05-04T00:00:00Z' metric: traffic-volume dns-udp-queries-received-ipv4: 7069000938 dns-udp-queries-received-ipv6: 2900118491 dns-tcp-queries-received-ipv4: 511370818 dns-tcp-queries-received-ipv6: 451722991 dns-udp-responses-sent-ipv4: 6498093299 dns-udp-responses-sent-ipv6: 2466602104 dns-tcp-responses-sent-ipv4: 452417213 dns-tcp-responses-sent-ipv6: 404028045