--- version: rssac002v3 service: a.root-servers.net start-period: '2018-10-16T00:00:00Z' metric: traffic-volume dns-udp-queries-received-ipv4: 4516829156 dns-udp-queries-received-ipv6: 661710042 dns-tcp-queries-received-ipv4: 113302901 dns-tcp-queries-received-ipv6: 26136224 dns-udp-responses-sent-ipv4: 4401858009 dns-udp-responses-sent-ipv6: 661372935 dns-tcp-responses-sent-ipv4: 110603265 dns-tcp-responses-sent-ipv6: 26208033