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GACS Exams · GACS Professional Diploma · 100 questions · 80% pass

OIA — OSINT Intelligence Analyst · Final Exam

Agency-grade open-source intelligence tradecraft: requirements-driven collection, multi-source corroboration, geolocation and chronolocation, dark-web collection under managed attribution, threat-actor cluster analysis, and confidence-rated attribution that holds up to Devil's Advocacy.

100 scenario-based multiple-choice questions · pass mark 80/100 (80%). Every question has exactly one best-supported answer; distractors are intentionally plausible. Retakes allowed — your highest score counts. Diploma auto-issued to your account name on pass.

Doctrine you are expected to apply

  • ICD 301 — IC OSINT doctrine: PIRs, EEIs, collection planning, source rating.
  • Bellingcat standard: every published finding reproducible by a third party from cited open sources.
  • Structured Analytic Techniques: ACH, Key Assumptions Check, I&W, Pre-mortem, Devil's Advocacy.
  • GEOINT/IMGINT/CHRONOINT chain: candidate area → invariants → match → confidence + caveats.
  • Managed-attribution OPSEC, persona separation, and chain-of-custody discipline.
  • MITRE ATT&CK and the Diamond Model for threat-actor profiling.

Authority sources behind the exam

  • ICD 301 — Director of National Intelligence OSINT Directive.
  • NATO OSINT Handbook & Reader.
  • Bellingcat — Online Investigation Toolkit and published methodology.
  • MITRE ATT&CK Framework & Diamond Model of Intrusion Analysis.
  • U.S. State Department OSAC personal-security and travel-intelligence briefings.
  • Public academic work — Heuer (Psychology of Intelligence Analysis), Heuer & Pherson (Structured Analytic Techniques).

Before you begin

  • Allow 60–90 minutes of uninterrupted, focused time.
  • Read every stem carefully — the difficulty is in the discrimination between defensible options, not in trick wording.
  • When two options look correct, pick the one most directly supported by the evidence/method described in the stem.
  • OIA is a professional credential — answer as a working analyst would write into a report under their own name.
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