--- version: rssac002v3 service: a.root-servers.net start-period: '2019-12-14T00:00:00Z' metric: traffic-volume dns-udp-queries-received-ipv4: 5783918131 dns-udp-queries-received-ipv6: 860158388 dns-tcp-queries-received-ipv4: 236734403 dns-tcp-queries-received-ipv6: 67576032 dns-udp-responses-sent-ipv4: 5627658747 dns-udp-responses-sent-ipv6: 858729864 dns-tcp-responses-sent-ipv4: 233863382 dns-tcp-responses-sent-ipv6: 67833257