KNX Basic · topic block
KNX System Arguments: KNX Basic exam questions with worked answers
Practice questions from the KNX System Arguments block of the KNX Basic certification. Detailed corrections, public sources, free to read without sign-up.
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Questions for the "KNX System Arguments" topic
Q01
ETS is available in four versions. Which statement is correct?- A.ETS Lite allows an unlimited number of devices
- B.ETS Professional is limited to 20 products
- C.ETS Home allows one project with a maximum of 64 KNX devices
- D.ETS Home allows an unlimited number of projects
KNX System Arguments· KNX advantages & ETS editions· MediumCorrect answerC — ETS Home allows one project with a maximum of 64 KNX devicesLearning tipCorrect: ETS Home = 1 project, max 64 devices.
Q02
ETS Lite is limited to projects with how many products, and is primarily intended for whom?- A.Up to 64 products — for homeowners
- B.Unlimited products — for professional integrators
- C.Up to 100 products — for manufacturers
- D.Up to 20 products — primarily for certified training centres
KNX System Arguments· KNX advantages & ETS editions· MediumCorrect answerD — Up to 20 products — primarily for certified training centresLearning tipCorrect: up to 20 products, mainly for certified training centres.
Q03
What does the "backward compatibility" of KNX mean in practice?- A.Even the earliest installations can still be expanded using the latest products (30+ years of compatibility)
- B.New devices only work with devices of the same generation
- C.Old ETS projects must be rebuilt from scratch in a new ETS
- D.KNX devices must be replaced every few years
KNX System Arguments· KNX advantages & ETS editions· EasyCorrect answerA — Even the earliest installations can still be expanded using the latest products (30+ years of compatibility)Learning tipCorrect: the earliest installations can still be expanded with the latest products.
Q04
In which year was the KNX Association established, and what was it initially called?- A.1990 — initially the "EIB Association" (EIBA)
- B.1999 — initially the "Konnex Association"
- C.2006 — initially "Batibus International"
- D.1985 — initially the "EHS Association"
KNX System Arguments· KNX history & standardization· EasyCorrect answerA — 1990 — initially the "EIB Association" (EIBA)Learning tipCorrect: founded in 1990 in Brussels as the EIB Association (EIBA).
Q05
In 1999 the EIBA merged with two other European associations. Which ones?- A.CENELEC (Belgium) and CEN (France)
- B.BCI (France, Batibus) and the European Home Systems Association / EHSA (Netherlands, EHS)
- C.LonMark (USA) and BACnet (Germany)
- D.DALI (Germany) and Batibus (Netherlands)
KNX System Arguments· KNX history & standardization· MediumCorrect answerB — BCI (France, Batibus) and the European Home Systems Association / EHSA (Netherlands, EHS)Learning tipCorrect: BCI (France, Batibus) and EHSA (Netherlands, EHS).
Q06
In which year was it decided to promote a single system "KNX", with the association renamed "KNX Association"?- A.1999
- B.2003
- C.2006
- D.2013
KNX System Arguments· KNX history & standardization· EasyCorrect answerC — 2006Learning tipCorrect: 2006 — single KNX system adopted and association renamed.
Q07
The KNX Association started with how many members, and roughly how many does it have today?- A.Started with 3 members, now over 100
- B.Started with 15 members, now over 1000
- C.Started with 50 members, now over 5000
- D.Started with 9 members, now over 500
KNX System Arguments· KNX history & standardization· MediumCorrect answerD — Started with 9 members, now over 500Learning tipCorrect: started with 9 members, now over 500.
Q08
Which statement about S-Mode (System Mode) is correct?- A.It is configured without a PC using push buttons
- B.It is limited to small installations only
- C.It requires a different software tool for each manufacturer
- D.It uses the manufacturer-independent ETS software on a PC and suits installations of any size
KNX System Arguments· KNX media & configuration modes· MediumCorrect answerD — It uses the manufacturer-independent ETS software on a PC and suits installations of any sizeLearning tipCorrect: ETS on a PC, manufacturer-independent, any installation size.
Q09
KNX interworking (devices from different manufacturers cooperating) relies on standardisation of which elements?- A.The telegrams and the useful data within them (data formats for switching, dimming, shutter, HVAC)
- B.The cable colours and connector shapes
- C.The power supply voltage and choke design
- D.The brand of ETS licence used
KNX System Arguments· KNX media & configuration modes· MediumCorrect answerA — The telegrams and the useful data within them (data formats for switching, dimming, shutter, HVAC)Learning tipCorrect: standardised telegrams and standardised useful-data formats.
Q10
KNX Secure provides two mechanisms. Which pair is correct?- A.KNX RF Secure and KNX TP Secure
- B.KNX IP Secure (secure access via IP) and KNX Data Secure (secure communication between devices)
- C.KNX Firewall and KNX VPN
- D.KNX Password and KNX Token
KNX System Arguments· KNX media & configuration modes· MediumCorrect answerB — KNX IP Secure (secure access via IP) and KNX Data Secure (secure communication between devices)Learning tipCorrect: KNX IP Secure (secure IP access) and KNX Data Secure (device-to-device).
Q11
Twisted Pair (TP) is the most widely used KNX medium.TrueFalseKNX System Arguments· KNX media & configuration modes· EasyCorrect answerTrueLearning tipCorrect — TP is the most widely used medium; the control cable runs parallel to the 230 V cable.
Q12
A KNX installation requires a central control unit (such as a PC) to coordinate the bus devices.TrueFalseKNX System Arguments· KNX media & configuration modes· MediumCorrect answerFalseLearning tipFalse — every KNX bus device has its own microcontroller, so no central control unit is needed.
Q13
When two different media are connected (e.g. TP and RF), a media coupler must be used.TrueFalseKNX System Arguments· KNX media & configuration modes· EasyCorrect answerTrueLearning tipCorrect — media couplers are used to connect different media.
Q14
The IP medium is the preferred choice when no cables can be installed.TrueFalseKNX System Arguments· KNX media & configuration modes· MediumCorrect answerFalseLearning tipFalse — that is RF. IP is preferred for a fast backbone in large installations and for communication with mobile devices.
Q15
In E-Mode, the application program is pre-installed in the device and configuration is done without a PC.TrueFalseKNX System Arguments· KNX media & configuration modes· MediumCorrect answerTrueLearning tipCorrect — E-Mode uses a central controller / push buttons, no PC, and the app program is pre-installed.
Q16
What is required to become a KNX Partner?- A.Purchase an ETS Professional licence
- B.Register a company on the KNX website
- C.Attend any online webinar
- D.Complete a full KNX Basic course (or Condensed Practical Basic course) at a certified centre and pass both the theoretical and practical exams
KNX System Arguments· KNX partnership & commercial· EasyCorrect answerD — Complete a full KNX Basic course (or Condensed Practical Basic course) at a certified centre and pass both the theoretical and practical examsLearning tipCorrect: full Basic (or Condensed Practical Basic) course + both exams.
Q17
Which licence do students receive upon acceptance into a Basic course at a certified KNX training centre?- A.A time-limited, cloud-based ETS6 Lite licence
- B.A permanent ETS6 Professional licence
- C.An ETS Home licence
- D.No licence until they pass the exam
KNX System Arguments· KNX partnership & commercial· MediumCorrect answerA — A time-limited, cloud-based ETS6 Lite licenceLearning tipCorrect: a time-limited, cloud-based ETS6 Lite licence.
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