--- version: rssac002v3 service: a.root-servers.net start-period: '2018-07-13T00:00:00Z' metric: traffic-volume dns-udp-queries-received-ipv4: 3685579939 dns-udp-queries-received-ipv6: 445499216 dns-tcp-queries-received-ipv4: 130310244 dns-tcp-queries-received-ipv6: 18074693 dns-udp-responses-sent-ipv4: 3591509440 dns-udp-responses-sent-ipv6: 445216525 dns-tcp-responses-sent-ipv4: 127678788 dns-tcp-responses-sent-ipv6: 18093819