--- version: rssac002v3 service: a.root-servers.net start-period: '2021-07-05T00:00:00Z' metric: traffic-volume dns-udp-queries-received-ipv4: 5305476921 dns-udp-queries-received-ipv6: 1424952726 dns-tcp-queries-received-ipv4: 276846284 dns-tcp-queries-received-ipv6: 104419101 dns-udp-responses-sent-ipv4: 5147404684 dns-udp-responses-sent-ipv6: 1423412895 dns-tcp-responses-sent-ipv4: 267846795 dns-tcp-responses-sent-ipv6: 104543017