--- version: rssac002v3 service: a.root-servers.net start-period: '2017-12-25T00:00:00Z' metric: traffic-volume dns-udp-queries-received-ipv4: 5266127215 dns-udp-queries-received-ipv6: 364624965 dns-tcp-queries-received-ipv4: 121258297 dns-tcp-queries-received-ipv6: 12519558 dns-udp-responses-sent-ipv4: 5263624150 dns-udp-responses-sent-ipv6: 364612533 dns-tcp-responses-sent-ipv4: 122257122 dns-tcp-responses-sent-ipv6: 12617697