--- version: rssac002v3 service: a.root-servers.net start-period: '2017-05-28T00:00:00Z' metric: traffic-volume dns-udp-queries-received-ipv4: 3141020929 dns-udp-queries-received-ipv6: 395877386 dns-tcp-queries-received-ipv4: 161094359 dns-tcp-queries-received-ipv6: 7468937 dns-udp-responses-sent-ipv4: 3140324889 dns-udp-responses-sent-ipv6: 395850500 dns-tcp-responses-sent-ipv4: 160984548 dns-tcp-responses-sent-ipv6: 7589218