Most Recent CWNP CWISA-102 Exam Questions & Answers

IEEE's Role:The Institute of Electrical and Electronics Engineers (IEEE) is a global organization critical in developing and promoting technical standards across various fields, including wireless technologies.

Standards Work:IEEE creates wireless technology standards like:

IEEE 802.11:Wi-Fi standards

IEEE 802.15.4:Basis for ZigBee, Thread, and other low-power networks

References

IEEE:https://www.ieee.org/

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.

References

Free Space Path Loss:https://en.wikipedia.org/wiki/Free-space_path_loss

ITU's Mandate:The International Telecommunication Union (ITU) is a specialized agency of the United Nations focused on global information and communication technologies (ICTs).

Radio Spectrum Regulation:A core ITU function is allocating radio spectrum bands and satellite orbits to prevent harmful interference between different countries and technologies. This coordination is essential for the orderly use of wireless communications worldwide.

Other ITU Roles:While involved in standard-setting and establishing best practices, options A and D are less precise than the ITU's spectrum coordination focus.

References:

ITU Website:(https://www.itu.int/en/) Outlines its activities and governance of radio spectrum.

ITU Radio Regulations:The international treaty governing the use of the radio-frequency spectrum.

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.

Cloud Connectivity Relies on IP:Most cloud-based services operate via the internet, which utilizes Internet Protocol (IP) at Layer 3 of the network model.

Flexibility:Various Layer 2 technologies (Ethernet, Wi-Fi) can connect to a Layer 3 network that ultimately provides Internet access

BLE Exception:Bluetooth Low Energycanhave cloud connectivity, but often through gateways and not as a direct Layer 2 connection.

Eliminating Incorrect Options:IPX/SPX is an outdated protocol, and cellular is only one possible way to achieve Internet access.

References:

OSI Model:Descriptions of Network Layers, especially Layer 2 (Data Link) and Layer 3 (Network).

Cloud Architecture:Diagrams showing how devices commonly access cloud resources through internet-based infrastructures.