--- version: rssac002v3 service: a.root-servers.net start-period: '2018-03-24T00:00:00Z' metric: traffic-volume dns-udp-queries-received-ipv4: 3210204710 dns-udp-queries-received-ipv6: 347373467 dns-tcp-queries-received-ipv4: 126921023 dns-tcp-queries-received-ipv6: 17767066 dns-udp-responses-sent-ipv4: 3206717496 dns-udp-responses-sent-ipv6: 347278941 dns-tcp-responses-sent-ipv4: 127208627 dns-tcp-responses-sent-ipv6: 17866332