TN THPT is Vietnam's national Grade 12 exam, administered once a year by MOET since being merged into its current dual-purpose form in 2015, and its defining structural trait is serving two separate functions from a single sitting — legally certifying high school graduation while simultaneously feeding into university admission rankings. Students take four subjects — compulsory Literature and Mathematics plus two chosen electives — with Literature alone still graded as a full written essay while every other subject uses objective, machine-scored item formats that were restructured again in 2025 to include true/false clusters and short-answer items alongside standard multiple-choice. Because the same subject scores must both clear a graduation threshold and produce enough spread to rank competitive university applicants, MOET calibrates the exam unusually carefully, and most Vietnamese universities convert a student's chosen three-subject combination into their own admissions aggregate rather than relying on one uniform national cutoff. This makes TN THPT distinct from every other exam in this comparison set, since Pakistan's MDCAT, Indonesia's SNBT, and Thailand's TGAT each serve admission alone, with no legal graduation function attached.