--- version: rssac002v4 service: a.root-servers.net start-period: '2023-03-30T00:00:00Z' metric: traffic-volume dns-udp-queries-received-ipv4: 7014626739 dns-udp-queries-received-ipv6: 2262936059 dns-tcp-queries-received-ipv4: 446112421 dns-tcp-queries-received-ipv6: 170119440 dns-udp-responses-sent-ipv4: 6458040106 dns-udp-responses-sent-ipv6: 1919848644 dns-tcp-responses-sent-ipv4: 393067059 dns-tcp-responses-sent-ipv6: 143227069