CWISA-103 Exam Dumps : Certified Wireless IoT Solutions Administrator(2025 Edition)

Key Modulation Differences:

ASK (Amplitude Shift Keying): Digital data is represented by changes in the amplitude (strength) of a carrier wave.

FSK (Frequency Shift Keying): Digital data is represented by changes in the frequency of a carrier wave.

References

ASK: 

FSK: 

Perception Layer: The foundation of an IoT system, it consists of sensors and actuators that:

Sense: Collect data about the environment or object being monitored.

Actuate: Potentially make changes based on commands (e.g., a smart valve opening/closing).

Transmit: Send gathered data to upper layers for processing.

Captive Portals for Guest Access: These are web pages that intercept users' requests before granting full internet access. They often require agreeing to terms, entering basic information, or viewing ads.

Hospitality Fit: Captive portals are simple to deploy, require minimal user setup, and provide control for the hospitality provider (e.g., usage limits).

Why Other Options Are Less Common:

NTLM: Microsoft authentication, mainly for corporate networks, too complex for casual guest use.

Kerberos: Complex authentication for enterprise, overkill for guest Wi-Fi

SIM Cards: Used in cellular devices, not for general Wi-Fi access.