Prep built around how the RCDD exam really works

How we write questions

We don't use leaked or "recalled" exam questions. Each question is written from BICSI's published RCDD v15 exam content outline and the ANSI/TIA, NEC and BICSI standards the TDMM describes, then checked against the rule or calculation it tests. The working is shown in the explanation, so you can check our work.

How we keep it current

BICSI updates the exam after each job task analysis and the TDMM with each edition. We review the exam page against the current RCDD Certification Handbook and show when it was last checked (currently November 2026).

How we fit with the TDMM

The TDMM 15th edition is the reference for the exam, and it's your core reading. RCDDQuizBank adds what most candidates say they're missing: lots of exam-style practice, timed mock exams, spaced-repetition flashcards, a mistakes bank and a Readiness Score that tells you when you're ready.

What you get

• A free practice test for every exam, and a free account that saves your results
• 3,000 practice questions per exam, organized topic by topic, and 6 full-length timed mock exams (paid)
• 60 comprehensive key notes and 800 flashcards with spaced repetition per exam, sorted by topic, plus mind maps (paid; the first notes set is free with an account)
• A mistakes bank, detailed reports and the Exam Readiness Score (paid)
• Video lessons as they release, and five bonus guides (paid)

Our guarantee

Pass Guarantee: complete the full prep for your exam (every question, every study topic, 2 timed simulations at the pass mark and a Readiness Score of 80), then sit your exam within 60 days while your access is active. If you don't pass, we refund 100% of what you paid. Details.

Contact

Questions about an exam, a question you think is wrong, or your account: [email protected]. We reply within one business day.

RCDDQuizBank is not affiliated with BICSI or Pearson VUE.