--- service: a.root-servers.net start-period: '2016-01-29T00:00:00Z' end-period: '2016-01-29T23:59:59Z' metric: traffic-volume dns-udp-queries-received-ipv4: 3743993009 dns-udp-queries-received-ipv6: 268034284 dns-tcp-queries-received-ipv4: 60458963 dns-tcp-queries-received-ipv6: 1578632 dns-udp-responses-sent-ipv4: 3742459661 dns-udp-responses-sent-ipv6: 267708831 dns-tcp-responses-sent-ipv4: 52518421 dns-tcp-responses-sent-ipv6: 212409