CWNP CWISA-102 CWISA Exam Questions Instant Access

Question 1

What kind of PoE device can be used to power a non-PoE connected object assuming PoE power is provided on the Ethernet cable?

APoE midspan injector

BPoE endspan switch

CPoE coupler

DPoE splitter

Answer : D

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:

PoE Injector:Adds power to non-PoE Ethernet cable.

PoE Switch:Provides power directly through its ports.

Question 2

A Wi-Fi enabled weight scale is an example of what kind of health IoT device?

Aimplantable

Bwearable

Cnon-wearable

Dinjectable

Answer : C

Health IoT Device Categories:

Wearable:Devices worn on the body (smartwatches, fitness trackers).

Non-wearable:Devices used without being worn (smart scales, connected medical equipment).

Implantable:Surgically inserted devices (pacemakers, glucose monitors).

References

Health IoT:Resources on healthcare + IoT will illustrate device types.

Question 3

What function does the IEEE perform in relation to wireless technologies?

APromotes technology and standards development

BDesigns wireless chipsets

CCertified equipment to be compatible

DBrings wireless products to market

Answer : A

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/

Question 4

What is the most important consideration when deciding whether to implement a wired or wireless solution?

AThe distance between nodes

BThe availability of PoE

CThe applications being used

DBusiness and system requirements

Answer : D

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.

Question 5

What is the benefit of using SINR as opposed to SNR to reference signal quality at a receiver?

ASINR includes interference as well as the noise floor

BSNR excludes the noise floor, which skews the results

CSINR excludes interference and only measures the noise floor

DSNR includes interference measurements that skew the results

Answer : A

SINR vs. SNR:

SNR (Signal-to-Noise Ratio):Measures the power of the desired signal relative to background noise.

SINR (Signal-to-Interference-plus-Noise Ratio):Considers both background noiseandinterference from other signals operating on the same frequency.

Practical Importance:SINR is a more realistic indicator of real-world signal quality in wireless environments where interference is a significant factor.

References

SINR:https://en.wikipedia.org/wiki/Signal-to-interference-plus-noise_ratio

SNR:https://en.wikipedia.org/wiki/Signal-to-noise_ratio

Question 6

You must ensure proper security controls are in place for a wireless solution. The solution allows for the use of groups to grant access to resources and capabilities. What is the term used to describe a situation where an individual is granted more access than required because of inclusion in a group?

AImproper delegation

BPrivilege escalation

CPrivilege creep

DImproper grouping

Answer : C

Privilege Creep Defined:Gradual accumulation of excessive permissions over time, often due to users changing roles or access needs not being adjusted accordingly.

Other Terms:

Privilege Escalation: A malicious act of obtaining higher-than-authorized access.

Improper Delegation/Grouping: Faulty permission assignment, but not the gradual accretion aspect.

References:

Principle of Least Privilege:Security best practice emphasizing the need to minimize access to only what's necessary.

Access Control Models:Discussions of how privilege creep can violate security principles.

Question 7

You have been asked to consider smart building opportunities for your organization. Which one of these is a benefit of smart building technology?

AIncreased vacation time for building managers

BImproved operational efficiency

CReduced design and construction costs

DFaster Wi-Fi connectivity

Answer : B

Smart Building Core Benefit:Smart building technologies primarily aim to optimize a building's operational efficiency through automation and data-driven insights.

Efficiency Examples:

Energy Management:Automated lighting and HVAC control based on occupancy and environmental conditions.

Maintenance:Predictive maintenance through IoT sensors reduces downtime.

Space Utilization:Optimization of space allocation based on real-time usage patterns.

References

Smart Buildings:https://en.wikipedia.org/wiki/Smart_building

Articles on Benefits of Smart Buildings:A quick search will yield many resources detailing these advantages.

CWNP Certified Wireless IoT Solutions Administrator Exam CWISA-102 CWISA Exam Questions