Vouchers are never required but Teradata employees get 30% off of exam prices if they download an employee voucher at the SharePoint site. (VPN must be on.) Beta exams always require exam vouchers. They can be obtained by emailing Teradata认证. The exams that are in beta now are the Analytics and 数据科学 exams. Those exams are greatly reduced and offered at $75 with the voucher. Everyone else: 25% off through 12/31/20 using the voucher code VANTAGE25