--- version: rssac002v4 service: a.root-servers.net start-period: '2023-05-18T00:00:00Z' metric: traffic-volume dns-udp-queries-received-ipv4: 7459955421 dns-udp-queries-received-ipv6: 1978277694 dns-tcp-queries-received-ipv4: 443529753 dns-tcp-queries-received-ipv6: 153119683 dns-udp-responses-sent-ipv4: 6997903583 dns-udp-responses-sent-ipv6: 1659146264 dns-tcp-responses-sent-ipv4: 390783567 dns-tcp-responses-sent-ipv6: 113495331