Question

What does the "backward compatibility" of KNX mean in practice?

KNX BasicLearnKNX System ArgumentsEasy
Answer

A — Even the earliest installations can still be expanded using the latest products (30+ years of compatibility)

Correct: the earliest installations can still be expanded with the latest products.

Source

KNX Basic Course Documentation — 6.4 — p. 17

All proposed choices (exam context)
  1. A.Even the earliest installations can still be expanded using the latest products (30+ years of compatibility)
  2. B.New devices only work with devices of the same generation
  3. C.Old ETS projects must be rebuilt from scratch in a new ETS
  4. D.KNX devices must be replaced every few years
Full bank

Keep going with the full KNX Basic bank

Keep going with the full KNX Basic bank: unlimited timed mock exams, detailed answers, history. From €9 (one-time payment).

See pricing — from €9
Want more?

See the 9 other KNX Basic practice questions

Related questions

Question from our independent practice bank. KNX Basic is a registered trademark of KNX Association, not affiliated with CertifBus.

Last updated: 19 May 2026

See pricing — from €9
KNX Basic pack · from €9
KNX BASIC & ADVANCED

Ready to find out where you really stand?

10 free questions every day, no account needed. Full access only if you decide to go all the way.

+1/−0,5 official scoringFR·EN·DE interface and explanations9 from · one-time payment
Newsletter

Get launch announcements

We'll email you when new KNX questions, a guide or a tool is published. No spam.

Unsubscribe in 1 click. No sharing with third parties.