Number of days?
Depends on the course. They range from 2-5 days. It is listed on the individual course information pages. Here's a link to the catalog of courses (and exams):
I am looking at the Online Training versions of classes, specfically RH124 Red Hat System Administration I. It is something that I would like to learn for my job, but also I would like to register the Continuous Learning Hours with ISC2. Maintaining the certs is a requirement for my job. I don't see anything in any of the descriptions that tells me what my time/effort commitment is expected to be when signing up for the course. In the catalog for RH124, the classroom version says 5 days. Would that be 40 Continuous learning Hours of training? The online version says 90 days. I don't need 720 hours of continuous learning. Where are the time commitments listed for each course?
The online training (ROL) courses are equivalent to a 4-5 day course. ROL training is available up to 90 days as it is understood that students might be taking the training on their spare time, out of office hours, etc; but the effort should be equivalent and the content sylabus is of course the same.
For reference, I'd check how long each course is (some are 3 days, some 4, up to 5) and infer from there how much time would it take.
As for RH124, the description here shows 5 dyas in a classroom, so that'd be the equivalent commitment time.
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