CWNP CWISA-102 CWISA Exam Practice Test Instant Access

Question 1

What is an important feature of the PHP scripting language?

AIt only works on Linux systems

BIt only works embedded in web applications

CIt only works from the command line

DIt works in web applications and at the command line

Answer : D

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.

Question 2

Among these choices, what is the most common reason administrators use scripting during the deployment of a wireless solution?

ATo provide time for playing solitaire

BTo reduce configuration errors

CTo increase the signal strength of the resulting wireless links

DTo enhance the capabilities of the resulting solution

Answer : B

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 scriptsmightaid 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.

Question 3

In a wireless link, as the signal strength decreases, what else may decrease?

ANoise

BInterference

CLatency

DTransmission speeds

Answer : D

Signal Strength and Data Rate:In wireless links, weaker signal strength often directly correlates to reduced transmission speeds. Modern wireless technologies use adaptive modulation and coding, sacrificing speed for reliability when signals become weaker.

Noise and Interference:While thesecanimpact performance, they don't inherently decrease simply because signal strength drops.

Latency:Latency can be affected by poor signal, but its primary drivers are distance and network congestion.

References:

Wireless Signal Strength vs. Speed:Articles explaining the relationship and how adaptive modulation works.

Modulation and Coding Schemes (MCS):Technical descriptions of how Wi-Fi and other wireless technologies adjust speeds based on signal quality.

Question 4

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 5

You are troubleshooting a problem with a wireless solution that uses MQTT where the IoT end devices are not reporting to the MQTT server/broker. At what Layer of the OSI Model should troubleshooting begin when using a bottom-up method?

ALayer 1

BLayer 4

CLayer 5

DLayer 6

Answer : A

Bottom-Up Troubleshooting:The OSI model provides a structured diagnostic approach. Starting at Layer 1 ensures basic physical connectivity issues are ruled out first.

MQTT Relies on IP:MQTT operates at a higher layer of the OSI model, relying on TCP/IP (Layers 4 and 3) for communication. Problems at the physical layer will disrupt everything built upon it.

Checking the Fundamentals:Before investigating complex application issues (MQTT), verify cables, link lights, Wi-Fi signal strength, etc.

References:

OSI Model:Descriptions of the seven layers, emphasizing the foundation provided by Layer 1 (Physical).

Network Troubleshooting Guides:Resources that outline common Layer 1 problems and their symptoms.

Question 6

In the simplified three-layer model for wireless IoT, what is the universal primary function of the Perception layer?

AGathering and transmitting data to be used for actions, analysis or reporting

BAnalyzing data for actions and reporting using AI and ML

CDecrypting local data to send across the unencrypted IoT network

DProviding the network across which data can be transmitted to the cloud

Answer : A

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.

Question 7

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.

CWNP CWISA-102 Certified Wireless IoT Solutions Administrator Exam CWISA Exam Practice Test