Important CWNP CWISA-103 Exam Questions

Answer: A

Explanation:

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.

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

Answer: C

Explanation:

HTTP's Popularity:HTTP is the foundation of the web, making it widely known and supported. Developers have extensive familiarity with its concepts (methods, headers, status codes, etc.).

REST APIs and Webhooks:These often leverage HTTP for communication, building upon existing knowledge and tools.

Tradeoffs:

Security:HTTP itself is not inherently secure; HTTPS or additional layers address this.

Speed:Protocols optimized for IoT may have lower overhead, but HTTP's simplicity often outweighs minor performance differences.

REST APIs:Overviews of their use of HTTP, demonstrating its prevalence in API development.

Developer Experience with HTTP:Discussions on the familiarity with and availability of HTTP libraries in various programming languages

Answer: D

Explanation:

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.

Answer: C

Explanation:

isualizing RF Interference:Spectrum analyzers display radio frequencies across a range, showing signal strength and potential interference sources. This is crucial for identifying non-Wi-Fi devices that might be disrupting your wireless solution.

Other Tools Have Limitations:

NMAP: Network mapper, focused on discovering devices, not RF analysis

WinPCAP: Packet capture software, helpful but doesn't directly display the RF spectrum.

Protocol Analyzer: Analyzes network traffic, but won't pinpoint physical layer interference.

Spectrum Analyzers:How they work and common use cases in RF troubleshooting.

Wireless Interference Types:Resources that discuss non-Wi-Fi interference sources (microwaves, cordless phones, etc.)

Answer: D

Explanation:

Lab Purpose:Wireless testing labs offer controlled settings to:

Skill Development:Hone practical understanding of wireless technologies without impacting production environments.

Experimentation:Safely test different configurations, compatibility, and potential issues.

Troubleshooting:Isolate problems, test solutions, and understand how equipment behaves in various scenarios.

Other Benefits (While not the primary benefit):

Learning Environment:Ideal for structured training and exploration.

Evaluation:Compare hardware performance before deployment.

Reference

Benefits of IT Labs:Can be extended from wireless to broader IT experimentation and learning. (Articles on this topic are readily available)