--- version: rssac002v4 service: a.root-servers.net start-period: '2023-12-22T00:00:00Z' metric: traffic-volume dns-udp-queries-received-ipv4: 7854192242 dns-udp-queries-received-ipv6: 1537931153 dns-tcp-queries-received-ipv4: 431647345 dns-tcp-queries-received-ipv6: 75588991 dns-udp-responses-sent-ipv4: 7673805021 dns-udp-responses-sent-ipv6: 1510917757 dns-tcp-responses-sent-ipv4: 407554823 dns-tcp-responses-sent-ipv6: 62874338