Free CWISA-102 sample questions
Real questions from the Certified Wireless Iot Solutions Administrator practice bank, with the correct answer and an explanation for each one. No junk, no filler.
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A technician is calculating the link budget for a point-to-point wireless bridge. The transmitter has an output power of 20 dBm, the transmit antenna has a gain of 12 dBi, and the receive antenna has a gain of 12 dBi. The cable loss on both the transmitter and receiver side is 2 dB each. What is the Effective Isotropically Radiated Power (EIRP) of the transmitting system?
An agricultural firm needs to deploy thousands of soil moisture sensors across a vast, remote area with no existing cellular or Wi-Fi coverage. The sensors need to operate on a single battery for over 5 years, sending only a few bytes of data twice per day. The firm will deploy its own gateways on tall silos to collect the data. Which wireless technology is the most suitable choice based on these specific requirements?
During the pilot phase of an IoT deployment, you are configuring a gateway device that aggregates data from multiple sensors. The gateway needs to forward this data to a cloud-based application endpoint. To ensure data integrity and confidentiality during transit over the public internet, which protocol should be used to encapsulate the application data?
A technician is troubleshooting a newly installed Zigbee mesh network for a smart lighting system in a commercial office building. Many lights at the edge of the network are intermittently unresponsive. A site survey reveals that the building's Wi-Fi network is heavily used on channel 6. The Zigbee network is currently configured to use channel 15. What is the most likely cause of the issue?
A solutions architect is designing an IoT system for a fleet of delivery vehicles. The system needs to report the vehicle's location, speed, and cargo temperature to a central server in real-time. Which TWO of the following wireless technologies are most appropriate for this application? (Select TWO)
True or False: In radio communications, Chirp Spread Spectrum (CSS) modulation achieves processing gain and robustness against interference by rapidly changing the carrier frequency of a signal across a wide band of frequencies in a pseudorandom sequence.
**Company Background:** SmartBuild Inc. is developing a comprehensive smart building solution for a new 50-story corporate headquarters. Their goal is to integrate lighting, HVAC, occupancy sensing, and access control into a single, cohesive system. The building features a steel frame and concrete floors, which are known to cause significant RF attenuation. **Current Situation:** The project team has selected a variety of best-in-class IoT devices from different manufacturers. The lighting system uses Zigbee, the occupancy sensors are Bluetooth Mesh, and the HVAC controllers use a proprietary 802.15.4 protocol. The access control system is wired but needs to receive occupancy data to unlock doors during emergencies. **Requirements and Constraints:** The primary requirement is to create a unified management and automation platform that can control all systems seamlessly. The solution must be resilient to RF interference from the building's dense Wi-Fi deployment and the physical structure. A key use case is to automatically dim lights and reduce HVAC in unoccupied areas, based on data from the Bluetooth sensors. All communication must be secured with modern encryption standards. **Question:** Given the heterogeneous device environment and challenging RF conditions, which implementation strategy should SmartBuild Inc. prioritize to ensure a successful deployment?
A developer is writing a script to pull configuration data from a network of IoT gateways. The data must be returned in a format that is both human-readable and easily parsed by machines, with a strong emphasis on hierarchical structure and the use of data models. Which data structure format would be the most appropriate choice?
When planning an RTLS deployment in a warehouse, the project manager must choose a location determination method. The requirement is to pinpoint the location of an asset within a 2D space using its distance from three known reference points (anchors). What is this specific location method called?
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