--- version: rssac002v4 service: a.root-servers.net start-period: '2022-06-08T00:00:00Z' metric: traffic-volume dns-udp-queries-received-ipv4: 5637048011 dns-udp-queries-received-ipv6: 1646455803 dns-tcp-queries-received-ipv4: 370524426 dns-tcp-queries-received-ipv6: 61577327 dns-udp-responses-sent-ipv4: 5355288989 dns-udp-responses-sent-ipv6: 1644894261 dns-tcp-responses-sent-ipv4: 301397758 dns-tcp-responses-sent-ipv6: 61698165