Free CWNP CWISA-102 Practice Exam with Questions & Answers

• 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.

• ZigBee Channel Spacing: ZigBee channels in the 2.4 GHz band are spaced 5 MHz apart. This helps manage interference in the crowded 2.4 GHz spectrum.

• Key Modulation Differences:

References

• ASK: https://en.wikipedia.org/wiki/Amplitude-shift_keying
• FSK: https://en.wikipedia.org/wiki/Frequency-shift_keying

• IIoT Environments: Industrial IoT (IIoT) often involves deployment in harsh environments (factories, plants, outdoor sites) with:
• Ruggedization: IIoT devices are designed to withstand these conditions, ensuring reliability and longevity.

References

• IIoT: https://en.wikipedia.org/wiki/Industrial_Internet_of_things
• Rugged Devices: Articles on ruggedized electronics will emphasize their importance in industrial settings.

• Encryption vs. Other Options:
• How encryption works: Encryption uses algorithms and keys to turn plaintext into unreadable ciphertext. Only those with the correct key can decrypt it.
• Data in motion vs. data at rest: Encryption protects sensitive information both when transmitted over the wireless network and when stored on devices.

References:

• Encryption standards and protocols: Resources on common wireless encryption types (WPA2, WPA3, TLS) and their implementation.

• Automation for Consistency: Scripts eliminate the potential for human error during repetitive configuration tasks on multiple devices. This ensures uniformity across the wireless solution.
• Speed and Efficiency: Scripts can be much faster than manual configuration, particularly in large deployments.
• Other Benefits: While scripts might aid signal strength (e.g., optimizing settings) or enhance solution capabilities, their core value in configuration is reducing errors.

References:

• Network Automation: Benefits of using scripts for configuration management.
• Configuration Management Best Practices: Emphasize the importance of consistency and repeatability.

• PoE Splitter: A PoE splitter separates power and data from a PoE-enabled Ethernet cable, allowing the powering of non-PoE devices.
• Other PoE Devices:

• 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:

References:

• Captive Portals: Explanations of how they work and their use cases.
• Guest Wi-Fi in Hospitality: Best practices highlight the prevalence of captive portals in this industry.

• WBAN Range: Wireless Body Area Networks (WBANs) specialize in short-range communication around the human body. Typical ranges fall within 1-2 meters.
• Purpose: This range is designed to:

References

• WBAN Overview: https://en.wikipedia.org/wiki/Body_area_network
• WBAN Research Paper (Check Range Discussion): https://www.mdpi.com/2224-2708/11/4/67

• Most Vulnerable In Transit: Sensitive data (passwords, health information, etc.) is most susceptible to interception while being sent over a wireless network. Encryption is crucial at this stage.
• Encryption at Rest and in Memory: While also important, these are often handled with different cryptographic techniques depending on the system.

References:

• Wireless Security Protocols: Details on encryption standards like WPA2/WPA3, TLS that focus on protecting data during transmission.