--- version: rssac002v4 service: a.root-servers.net start-period: '2022-05-30T00:00:00Z' metric: traffic-volume dns-udp-queries-received-ipv4: 5826738311 dns-udp-queries-received-ipv6: 1778481130 dns-tcp-queries-received-ipv4: 374235108 dns-tcp-queries-received-ipv6: 68836294 dns-udp-responses-sent-ipv4: 5546226189 dns-udp-responses-sent-ipv6: 1776982535 dns-tcp-responses-sent-ipv4: 305358324 dns-tcp-responses-sent-ipv6: 68853686