How to study for OffSec Defense Analyst (OSDA) with the best free resources

Every link below was opened and checked by Learnerside, labelled official or independent, and shown with the date it was last checked where one is recorded. Nothing here is sponsored, and no exam dumps are listed.

Learnerside has checked the official exam scope for this certification, and has no free course on record for it.

See the certification itself: OffSec Defense Analyst (OSDA).

Best free resources

What to know

• OffSec SOC-200 OSDA Syllabus PDF: Learnerside records this against exam SOC-200 and has not verified whether that is still the current exam — check the vendor's page before relying on it. Official OffSec objective source with unweighted domains. (noted when we read this source, 2026-06-30)

The free path, in order

1. Start from the exam objectives / outline — it is the scope the certifying body itself publishes, and where a vendor also publishes domain weightings they are in it. It may not be a comprehensive list of every exam topic. Study against it, not against a course's table of contents. Where the entry below records an exam version Learnerside has not verified as current, confirm on the vendor's page that you are reading the outline for your exam before you study against it.

2. Learnerside has no free structured course on record for this certification, and an exam outline does not necessarily list every topic an exam covers — so Learnerside cannot show you a complete free preparation path for this exam. Use the outline to see what is examined, and the vendor's official exam page for the current exam price.

Free resources reduce what you spend to study. No resource guarantees a pass, and a course is not the certification.