Pass your RCDD exam the first time.
Practice questions, flashcards and timed mock exams for the BICSI Registered Communications Distribution Designer exam. Your Readiness Score tells you when you're ready for exam day.

The real dashboard, shown with sample student data.
Your BICSI RCDD prep, in 48 seconds
Diana walks you through the dashboard: practice by topic, timed mocks, weak-spot tracking, flashcards, study notes and the Pass Guarantee.
Learn the reasoning behind every answer
The RCDD exam rewards designers who can size a space, a conduit or a loss budget and pick the rule that applies. Every explanation works through the calculation or the standard behind the answer, so you learn why, not just what.
- Original questions written to the RCDD v15 blueprint
- Trap answers called out, like a 98 m channel with a 92 m horizontal run
- Practice by topic or mixed, with instant feedback

See your weak spots before the exam does
Your Readiness Score day by day, accuracy by topic with the weakest first, and every timed mock exam against the pass line. One click on a topic starts a drill on it.
- Topic accuracy updates after every question
- Mock exam scores plotted against your target line
- The Today list sends you to your weakest topic first

Remember it on exam day, not just tonight
Spaced repetition brings each card back right before you'd forget it. Cards you miss return in 10 minutes. Cards you know wait days or weeks.
- Distances, fill limits, sizing rules and loss values that get tested
- 15 new cards a day, so reviews never pile up
- Mastery feeds straight into your Readiness Score

Turn every missed question into a point
Every question you get wrong is saved with its explanation. It only clears after you get it right twice in a row, so lucky guesses don't count.
- Re-test all your mistakes in one click
- See the right answer and the rule behind it
- Shows how many you've cleared, to keep you going

Walk in having done it before
Timed mocks with no feedback until you submit, the way exam day works. The RCDD gives you 90 seconds per item with no scheduled breaks, so pacing matters.
- RCDD pace: 100 items in 2.5 hours, about 90 seconds each
- Quick 25-question mocks for a lunch break
- Two full simulations count toward the Pass Guarantee

Where are you on the way to the RCDD?
Pick where you are. We'll show what to focus on and a free practice test to start with.
Built for the real exam, kept up to date
The RCDD exam. One plan.
Try any exam free first. Upgrade when you're ready.
Premium Monthly
- The RCDD exam: full prep for the v15 blueprint
- 3,000 practice questions + 6 full mock exams per exam
- 800 flashcards + 60 key notes per exam, by topic, plus mind maps
- Spaced repetition + mistakes bank
- Readiness Score & detailed reports
- Video lessons as they release
- Content updates during your access
- 5 bonuses: numbers and formulas sheet, standards atlas, study planner and more
- Pass Guarantee: complete the prep, pass or 100% back
Renews monthly until you cancel. Cancel in two clicks from your account; you keep access until the end of the month you've paid for. No minimum term.
Premium Yearly
- The RCDD exam: full prep for the v15 blueprint
- 3,000 practice questions + 6 full mock exams per exam
- 800 flashcards + 60 key notes per exam, by topic, plus mind maps
- Spaced repetition + mistakes bank
- Readiness Score & detailed reports
- Video lessons as they release
- Content updates during your access
- 5 bonuses: numbers and formulas sheet, standards atlas, study planner and more
- Pass Guarantee: complete the prep, pass or 100% back
Renews once a year until you cancel. We email you before each renewal. Cancel any time from your account; you keep access until the end of the year you've paid for.
Included free with every plan
RCDD Numbers & Formulas Sheet
The distances, fill limits, sizing rules and loss values the RCDD exam tests most, on one printable page.
Free with an accountStandards & Spaces Atlas
Which standard covers what, the TIA-607 bonding parts and the TIA-606 administration classes, side by side.
Exam-Day Checklist
What to check before your Pearson VUE appointment, and how to pace 100 items in 2.5 hours.
8- and 12-Week Study Planner
A week-by-week plan that fits around full-time design or installation work.
RCDD Credential Path Guide
From eligibility to recertification: application, exam, retakes, CECs and the RCDD stamp.

Pass, or get 100% of your money back.
We're confident in the system, so we put our money on it. Do the work, and if you still don't pass, you don't pay.
- Answer every question in that exam's question bank (100% covered)
- Read every study-notes topic for that exam
- Complete at least 2 full timed simulations, with your latest one at or above the exam's pass mark
- Reach a Readiness Score of 80 or higher (shown on your dashboard)
- Sit the official exam while your access is active, and within 60 days of meeting the requirements above
- Email your official result notice within 30 days of your exam date
Questions before you buy
Can I try it before I pay?
Yes. Open the study dashboard free with no signup, or take any exam's free practice test. You only pay when you want the full question bank, timed simulations and every study tool.
What if I buy it and it's not for me?
Because you get the full question bank and study materials the moment you pay, all sales are final. Try the free test and the free dashboard first so you know it suits you. The one exception is the Pass Guarantee: complete the full prep, and if you still fail, we refund 100%.
What if I study and still fail?
That's what the Pass Guarantee is for. Answer every question in the bank, read every study topic, pass 2 timed simulations and reach a Readiness Score of 80, then sit your exam within 60 days. If you don't pass, send your result notice within 30 days and we refund 100%.
Is it a subscription?
Yes. Premium is $147 a month per exam (about $4.83 a day) and renews monthly until you cancel. You can cancel in two clicks from your account, and there's no minimum term. Most people study for 1 to 3 months. If you want a whole year for one exam, the yearly plan is $1,323 for 12 months (3 months free) and renews once a year until you cancel.
How long do I keep access?
For as long as your Premium subscription is active. Cancel any time from your account and you keep access until the end of the month you've paid for.
Are these real exam questions?
No one can legally sell the actual exam questions. Ours are original questions written to match the RCDD v15 blueprint, the TDMM 15th edition and the exam's difficulty, with an explanation for every answer and the rule or calculation behind it, so you can check our work.
Is the content up to date?
We check the exam page against BICSI's current RCDD Certification Handbook and show the date it was last checked. In 2026 that included the RCDD v15 blueprint weightings (Design ICT Solutions 63%, Support ICT Installation Process 16%, Support ICT Bid/Tender Process 11%, Define Scope of Project 10%), the TDMM 15th edition and the US$510 / US$725 application fees.
Do I still need the TDMM?
Yes. The Telecommunications Distribution Methods Manual (TDMM), 15th edition, is BICSI's reference for the exam, and it's your core reading. We're the extra practice: more questions, timed mock exams, flashcards and a Readiness Score so you know when you're ready.
Are you affiliated with BICSI?
No. RCDDQuizBank is an independent exam-prep company. BICSI, RCDD, Registered Communications Distribution Designer and TDMM are trademarks of BICSI, Inc., used only to describe the exam we help you prepare for.
The RCDD exam
Each exam has a free practice test and a study guide. Premium adds 3,000 practice questions, 6 full mock exams, 800 flashcards and 60 comprehensive key notes per exam, organized topic by topic.
RCDD guides, written for ICT designers
Your RCDD is one exam away.
Open the dashboard, pick your exam and answer your first question in under a minute. Free, no signup.
Start studying freeReady to go all in? See pricing · $147/month per exam, about $4.83 a day · Pass Guarantee