Jamb cautions cyber cafe candidates

I think there may be a bit of a misunderstanding here!

JAMB (Joint Admissions and Matriculation Board) is a Nigerian educational board that conducts entrance examinations for universities and other tertiary institutions. It's not related to cyber cafes or online activities.

So, it's unlikely that JAMB would caution cyber cafe candidates. Cyber cafes are businesses that provide internet access and other online services, and they are not directly related to JAMB's activities.

If you meant to ask about something else, please feel free to clarify or rephrase your question!