CWNP CWISA-102 Certified Wireless IoT Solutions Administrator Exam CWISA Exam Practice Test
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Question 1
What is a valid reason to continue using older wireless networking technologies?
Answer : D
Legacy Support:The primary reason to continue using older wireless technologies is the need to connect with devices that don't support newer standards (e.g., old sensors or equipment).
Other Reasons (Not as Strong):
Cost:Replacing legacy devices can be expensive.
Reliability:Some legacy technologies might be well-proven in specific settings.
Question 2
When deploying devices in an indoor manufacturing environment, which IP rating is more likely to be required?
Answer : D
IP Ratings & Manufacturing:IP66 provides:
Dust-tight:(First '6') Complete protection against dust ingress.
Powerful Water Jets:(Second '6') Protection against strong water jets from any direction.
Harsh Manufacturing Environments:IP66 is common due to dust, dirt, and potential exposure to liquids during cleaning or spills.
What is the primary difference between LoRa and LoRaWAN?
Answer : A
LoRa:Refers to the physical layer chirp spread spectrum (CSS) modulation, enabling long-range, low-power communication.
LoRaWAN:An open MAC layer protocol that builds on LoRa, defining network architecture, device management, and data routing for large-scale LoRa networks.
Question 4
You are planning a wireless solution deployment. The organization has several wireless solutions in use. The new deployment must coexist with these other wireless solutions. What is the most important factor to consider when implementing the new wireless solution?
Answer : D
Coexistence Priority:Frequency coordination is the most critical aspect in ensuring that multiple wireless solutions function without significant interference.
Impact of Interference:Uncoordinated frequencies lead to:
Signal degradation:Reduced network performance and reliability.
Data errors and retransmissions:Inefficient operation and higher battery drain on devices.
Question 5
You are deploying a ZigBee network based on the frequency band available for ZigBee deployment worldwide. What allowable action will do the most to minimize ZigBee and 802.11 interference?
Answer : B
Wi-Fi and Zigbee Interference:Both can operate in the 2.4 GHz band, leading to potential interference that degrades performance for both networks.
5 GHz Advantages:
Less crowded: Fewer devices operate in the 5 GHz band, reducing interference potential.
Wider Channels: 5 GHz supports wider channels, enabling higher data throughput for Wi-Fi.
Question 6
You are implementing a smart office wireless solution for a small business. The business owner indicates that It is acceptable to use consumer-targeted wireless devices. What is a common negative attribute of consumer-targeted smart home or smart office devices?
Answer : B
Consumer Smart Devices Limitation:Many consumer-oriented smart devices are designed for simplicity and cost-effectiveness, leading to reliance on the crowded 2.4 GHz band.
Consequences:
High Interference:Increased potential for interference from Wi-Fi and other 2.4 GHz devices.
Limited scalability:Performance and reliability may degrade in busy wireless environments.
Question 7
As an RF signal propagates it becomes weaker at any given measurement point as it gets farther away from the transmitter. What concept is described?
Answer : B
Free Space Path Loss (FSPL):Describes how a radio signal weakens as it travels through open space, even without obstacles. It's caused by the signal spreading out, resulting in decreased power density at the receiver.
Calculation:FSPL depends on distance and frequency.
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