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CWNP CWISA-102 Exam Questions
- Topic 1: Wireless Technologies: It covers wireless IoT technologies, types of wireless network, and understanding of industry standard, hardware, and software.
- Topic 2: Radio Frequency Communications: This topic is all about characteristics of radio frequency waves, fundamentals of modulation techniques, and capabilities of components used in RF communications. Moreover, the topic describes basic use and capabilities of the RF bands.
- Topic 3: Planning Wireless Solutions: Basic features and capabilities of common wireless IoT solutions are discussed in this topic. Questions about choosing appropriate wireless IoT solutions and planning for the technical requirements of the wireless IoT solution may also appear. Lastly, it delves into sub-topics related to system constraints and requirements of wireless IoT system.
- Topic 4: Implementing Wireless Solutions: This topic discusses implementing such practices which are best the transfer of knowledge. It also delves into basic installation procedures, validation of RF communications, and usage of best practices to implement wireless IoT solution. Lastly, the topic also covers sub-topics of automation, integration, monitoring, and management.
- Topic 5: Supporting Wireless Solutions: It discusses troubleshooting common problems encountered in wireless IoT solutions. Moreover, it discusses sub-topics related to scripting, programming solutions, networking, and security protocols. You also encounter questions about application architectures and administration of the wireless solution.
Free CWNP CWISA-102 Exam Actual Questions
Note: Premium Questions for CWISA-102 were last updated On Nov. 21, 2024 (see below)
In the simplified three-layer model for wireless IoT, what is the universal primary function of the Perception layer?
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.
What is an important feature of the PHP scripting language?
PHP's Cross-Platform Nature:PHP originated for server-side web development, but also has a command-line interface (CLI) enabling its use for scripts and automation tasks.
Other Options:
Somelanguages are OS-specific (but less frequent with modern scripting languages) .
Many languages work in weborcommand line, notbothlike PHP.
References:
PHP (Introduction):Overviews mentioning its dual role in server-side web applications and as a general-purpose scripting language.
PHP CLI:Documentation on the command-line interface for PHP.
Which one of the following items has driven large serving 5- to 18-year-old students?
Cloud-based applications drive bandwidth usage:Applications like Google Suite, Microsoft 365, and video conferencing (Zoom, Teams) are commonly used in educational settings. These rely on cloud servers, requiring significant downloads and uploads.
Shift towards online learning:More schools are utilizing online learning platforms and resources, further increasing their dependence on cloud-based solutions.
Streaming, torrents, wearables less impactful:Streaming music and torrent sites can contribute, but their impact is generally less significant. Wearables in education are still niche despite their potential.
References
Trends in education technology:Reports on the rise of cloud-based learning platforms in schools.
Network usage studies in schools:Research on bandwidth usage patterns can confirm the primary drivers of traffic in educational settings.
What is the most important consideration when deciding whether to implement a wired or wireless solution?
Requirements Drive Decisions:The decision between wired or wireless must align with the solution's overall purpose, performance targets, and operational constraints.
Key Considerations:
Reliability:Does the application require guaranteed connectivity? (Wired may be favored).
Installation Cost:Can extensive cabling be done, or is it prohibitively expensive? (Wireless may be favored).
Flexibility and Scalability:Is node placement likely to change in the future? (Wireless may be favored).
Other Factors are Important, But Secondary:Distance, PoE availability, specific applications all matter, but they are assessedwithin the contextof the overarching business needs.
References:
Wireless vs. Wired Network Design:Comparisons of pros and cons, highlighting how use cases guide the choice.
IoT Solution Planning:Materials on defining requirementsbeforeselecting technology.
What factor severely limits the range of systems operating in the 60GHz band?
60GHz Absorption:The 60GHz band experiences significant signal attenuation due to absorption by oxygen molecules in the atmosphere. This severely restricts the usable range of wireless systems operating in this frequency.
Why Other Options Don't Apply:
Atmospheric Scattering:Impacts longer wavelength transmissions, less significant at 60GHz.
Solar Radiation:Can cause interference on some frequencies, but not a primary range limitation at 60GHz.
Rain Fade:Primarily affects higher frequencies (above 10GHz), but its impact is less severe than oxygen absorption at 60GHz.
References:
60GHz Propagation Characteristics:Technical papers discussing oxygen absorption and its influence on range limitations.
Millimeter-wave (mmWave) Communication:Overviews highlighting the challenges and short-range applications of 60GHz systems.
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