CWNP Exam CWISA-102 Topic 3 Question 27 Discussion

Actual exam question for CWNP's CWISA-102 exam

Question #: 27
Topic #: 3

What is the primary difference between LoRa and LoRaWAN

ALoRa uses RF and LoRaWAN uses light-based communications

BLoRa is the modulation method (using CSS modulation at the Physical Layer) and LoRaWAN is the MAC sub-layer of the Data Link layer

CLoRa is the Physical Layer and LoRaWAN is the Transport Layer

DLoRa is used for communicating across the Internet and LoRaWAN is used only on the local link

Show Suggested Answer

Suggested Answer: B

LoRa:This refers to the underlying radio modulation technique using Chirp Spread Spectrum (CSS). It defines how data is physically encoded onto the wireless signal.

LoRaWAN:This is the network protocol built on top of LoRa. It manages device communication, network topology, and aspects like security. It operates at the MAC sublayer of the Data Link layer (Layer 2) of the OSI model

LoRa vs. LoRaWAN:Key takeaway is that LoRa is the physical layer technology, while LoRaWAN adds the networking layer for management.

References:

LoRa Modulation:Technical explanations of Chirp Spread Spectrum (CSS).

LoRaWAN Specification:Official documentation detailing the network architecture and MAC layer functions.

OSI Model:Descriptions of the Data Link layer and its role in networking.

by Darnell at Jan 22, 2025, 07:16 AM

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19 days ago

Wow, I almost went with the 'LoRa uses RF and LoRaWAN uses light' option. Glad I double-checked that one!

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Alpha

6 days ago

User 2: Good thing you double-checked, the correct answer is 'LoRa is the modulation method and LoRaWAN is the MAC sub-layer.'

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Rodrigo

12 days ago

User 1: I almost picked the 'LoRa uses RF and LoRaWAN uses light' option too!

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25 days ago

A) LoRa is the modulation method (using CSS modulation at the Physical Layer) and LoRaWAN is the MAC sub-layer of the Data Link layer

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