--- version: rssac002v3 service: a.root-servers.net start-period: '2020-01-03T00:00:00Z' metric: traffic-volume dns-udp-queries-received-ipv4: 6916900628 dns-udp-queries-received-ipv6: 975999486 dns-tcp-queries-received-ipv4: 252270124 dns-tcp-queries-received-ipv6: 68710976 dns-udp-responses-sent-ipv4: 6730563821 dns-udp-responses-sent-ipv6: 969482718 dns-tcp-responses-sent-ipv4: 248148438 dns-tcp-responses-sent-ipv6: 68863675