--- service: d.root-servers.net start-period: '2016-03-16T00:00:00Z' end-period: '2016-03-16T23:59:59Z' metric: traffic-volume dns-udp-queries-received-ipv4: 4094778994 dns-udp-queries-received-ipv6: 527616490 dns-tcp-queries-received-ipv4: 26228114 dns-tcp-queries-received-ipv6: 1274949 dns-udp-responses-sent-ipv4: 4071824559 dns-udp-responses-sent-ipv6: 527294090 dns-tcp-responses-sent-ipv4: 26213166 dns-tcp-responses-sent-ipv6: 1274907