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M0 Certification
Stand watch. Know the terrain.
Sentry is where every cybersecurity career begins at CDA. This certification proves you understand the fundamentals of a PDM domain, including the threats it addresses, the tools it uses, and the operations it requires. No prior experience needed. Domain Zero gets you here.
50
Arena Points Per Mission
70%
Passing Score
60 min
Exam Duration
Sentry
CDArmy Tier Unlocked
40 multiple choice questions covering foundational concepts, terminology, and basic procedures. Questions are drawn from the domain-specific M0 course material. No lab component at this level.
70%
Passing Score
60 min
Duration
Complete all courses in a domain at this level to sit for the certification exam.
After earning Sentry certification, advance to M1: Operator for deeper expertise and higher-level missions.