--- version: rssac002v4 service: a.root-servers.net start-period: '2023-04-03T00:00:00Z' metric: traffic-volume dns-udp-queries-received-ipv4: 7286897588 dns-udp-queries-received-ipv6: 2395226798 dns-tcp-queries-received-ipv4: 549697972 dns-tcp-queries-received-ipv6: 181478447 dns-udp-responses-sent-ipv4: 6669415935 dns-udp-responses-sent-ipv6: 1998960532 dns-tcp-responses-sent-ipv4: 483378177 dns-tcp-responses-sent-ipv6: 147123398