--- version: rssac002v3 service: a.root-servers.net start-period: '2018-01-27T00:00:00Z' metric: traffic-volume dns-udp-queries-received-ipv4: 3176943663 dns-udp-queries-received-ipv6: 426685748 dns-tcp-queries-received-ipv4: 92743195 dns-tcp-queries-received-ipv6: 13883221 dns-udp-responses-sent-ipv4: 3174604163 dns-udp-responses-sent-ipv6: 426644821 dns-tcp-responses-sent-ipv4: 92990083 dns-tcp-responses-sent-ipv6: 13998765