--- version: rssac002v3 service: a.root-servers.net start-period: '2018-03-10T00:00:00Z' metric: traffic-volume dns-udp-queries-received-ipv4: 3547016591 dns-udp-queries-received-ipv6: 343354966 dns-tcp-queries-received-ipv4: 139624958 dns-tcp-queries-received-ipv6: 15215445 dns-udp-responses-sent-ipv4: 3544382688 dns-udp-responses-sent-ipv6: 343380521 dns-tcp-responses-sent-ipv4: 139749801 dns-tcp-responses-sent-ipv6: 15264760