--- version: rssac002v3 service: a.root-servers.net start-period: '2018-05-15T00:00:00Z' metric: traffic-volume dns-udp-queries-received-ipv4: 4491589069 dns-udp-queries-received-ipv6: 364139576 dns-tcp-queries-received-ipv4: 126979538 dns-tcp-queries-received-ipv6: 14919393 dns-udp-responses-sent-ipv4: 4429801043 dns-udp-responses-sent-ipv6: 363946782 dns-tcp-responses-sent-ipv4: 127678988 dns-tcp-responses-sent-ipv6: 14982419