--- version: rssac002v3 service: a.root-servers.net start-period: '2017-10-19T00:00:00Z' metric: traffic-volume dns-udp-queries-received-ipv4: 3768858330 dns-udp-queries-received-ipv6: 424364088 dns-tcp-queries-received-ipv4: 196777542 dns-tcp-queries-received-ipv6: 12304014 dns-udp-responses-sent-ipv4: 3759668320 dns-udp-responses-sent-ipv6: 421982516 dns-tcp-responses-sent-ipv4: 195955521 dns-tcp-responses-sent-ipv6: 12138901