The Indonesian government has issued a policy on Ujian Nasional Berbasis Komputer (UNBK). or it can be called CBT (Computer Based Test). In this study is the development of the CBT system using the Two Central Facilities protocol. which consists of the Central Legitimization Agency (CLA) and the Central Tabulating Facilities (CTF). https://poolsproductscanadas.shop/product-category/tristar-pump-parts/