Latest CWISA-103 Pass Guaranteed Exam Dumps Certification Sample Questions
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NEW QUESTION # 16
What is the primary difference between LoRa and LoRaWAN?
- A. LoRa uses RF and LoRaWAN uses light-based communications
- B. LoRa Is used for communicating across the Internet and LoRaWAN is used only on the local link
- C. LoRaWAN is the Physical Layer and LoRa is the Transport Layer
- D. LoRa is the modulation method and LoRaWAN implements the higher network layers
Answer: D
Explanation:
* LoRa: Refers to the physical layer chirp spread spectrum (CSS) modulation, enabling long-range, low- power communication.
* LoRaWAN: An open MAC layer protocol that builds on LoRa, defining network architecture, device management, and data routing for large-scale LoRa networks.
NEW QUESTION # 17
What kind of PoE device can be used to power a non-PoE connected object assuming PoE power is provided on the Ethernet cable?
- A. PoE endspan switch
- B. PoE midspan injector
- C. PoE coupler
- D. PoE splitter
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.
NEW QUESTION # 18
What is the benefit of using SINR as opposed to SNR to reference signal quality at a receiver?
- A. SINR includes interference as well as the noise floor
- B. SINR excludes interference and only measures the noise floor
- C. SNR includes interference measurements that skew the results
- D. SNR excludes the noise floor, which skews the results
Answer: A
Explanation:
* 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 noise and interference 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
NEW QUESTION # 19
Within what development environment is XAML most commonly used?
- A. Python
- B. R
- C. PHP
- D. .NET
Answer: D
Explanation:
* XAML and .NET: XAML (eXtensible Application Markup Language) is primarily used within the .
NET framework for defining user interfaces. Specifically, technologies like:
* WPF (Windows Presentation Foundation): Desktop application UIs
* Xamarin: Mobile app UIs
* XAML in Other Frameworks: While some limited adaptation exists, its core use is tightly coupled with .NET technologies.
References:
XAML Overview (Microsoft Docs): Introductions to XAML emphasizing its use in .NET applications.
WPF Documentation: Tutorials and references specifically mentioning XAML's role in Windows desktop development.
NEW QUESTION # 20
Why is it important to adhere to safety and building codes when installing equipment?
- A. It protects the life and health of Installers and end users during installation and after the system Is deployed
- B. It is an insurance requirement designed to reduce insurance rates and reduce Incident reports against Insurance policies
- C. It prevents equipment from falling to the floor and being damaged because of the Impact
- D. They can be ignored as they are regulations designed for other industries
Answer: A
Explanation:
* Primary Concern: Safety: Building codes and safety regulations are there to prevent injury and accidents. This includes potential harm from improper equipment installation (falling objects, electrical hazards, etc.).
* Legal and Ethical Responsibility: Organizations have an obligation to provide a safe workplace for employees and protect the well-being of end-users.
* Insurance Considerations: While complying with codes may impact insurance rates, this shouldn't be the primary motivation, as safety itself is paramount.
References:
Occupational Safety and Health (e.g., OSHA in the US): Websites of regulatory bodies outlining guidelines for safe equipment installation in various settings.
Electrical Codes (e.g., National Electrical Code): Standards that address safe practices to prevent fire and shock hazards.
NEW QUESTION # 21
When deploying devices in an indoor manufacturing environment, which IP rating is more likely to be required?
- A. IP38
- B. IP46
- C. IP66
- D. IP47
Answer: C
Explanation:
* IP Ratings & Manufacturing: IP66 provides:
* Dust-tight: (First '6') Complete protection against dust ingress.
* Powerful Water Jets: (Second '6') Protection against strong water jets from any direction.
* Harsh Manufacturing Environments: IP66 is common due to dust, dirt, and potential exposure to liquids during cleaning or spills.
References
* IP Ratings: https://en.wikipedia.org/wiki/IP_Code
NEW QUESTION # 22
You are performing an implementation for a cloud-based wireless solution. How is connectivity to the cloud established? (Choose the single best answer.)
- A. Through the use of IPX/SPX routers
- B. Through BLE Layer 2 connections that do not use IP
- C. Through cellular Internet connections only
- D. Through any Layer 3 network connected to the Internet
Answer: D
Explanation:
* 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 Energy can have 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.
NEW QUESTION # 23
You are defining capacity for a wireless solution. What is the most important factor related to each use case defined in relation to capacity?
- A. Protocols used on each device
- B. Support for mobility
- C. Number of devices
- D. Total airtime utilization
Answer: C
Explanation:
* Capacity Planning: The number of devices a wireless network can support is the primary determinant of its required capacity. This is because:
* Traffic Load: Each device generates network traffic that contributes to the overall load.
* Resource Sharing: Devices compete for airtime and bandwidth resources.
* Device Type: Requirements vary; a simple sensor has different needs than a video camera.
NEW QUESTION # 24
You are considering the implementation of a lab for testing wireless equipment. What is the primary benefit of such a lab? (Choose the single best answer.)
- A. Provides a way to repurpose old hardware that is not ready for final removal
- B. Provides a safe environment in which to develop practical skills and knowledge of a technology and to test the technology
- C. Provides for testing to determine how much RF exposure you can tolerate
- D. Provides a failover environment for your production systems
Answer: B
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.
References
* Benefits of IT Labs: Can be extended from wireless to broader IT experimentation and learning.
(Articles on this topic are readily available)
NEW QUESTION # 25
What function does the IEEE perform in relation to wireless technologies?
- A. Designs wireless chipsets
- B. Brings wireless products to market
- C. Promotes technology and standards development
- D. Certified equipment to be compatible
Answer: C
Explanation:
* 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/
NEW QUESTION # 26
Which one of the following is NOT a typical Smart City application?
- A. Self-driving ride sharing
- B. Pollution monitoring
- C. Demand-based road tolling
- D. City-wide municipal Wi-Fi
Answer: A
Explanation:
* Smart City Focus: Smart city initiatives mainly address infrastructure, environmental monitoring, and optimization of public services.
* Ride-sharing Context: While self-driving technology could contribute to future smart city transportation, it's primarily a private-sector innovation, not a core municipal service like the other options.
* Typical Smart City Applications:
* Wi-Fi: Provides public internet access, enabling data collection
* Pollution Monitoring: Tracks air/water quality for environmental management.
* Demand-based Tolling: Adjusts pricing for traffic management.
References:
Smart City Examples: Case studies showcasing common application areas (infrastructure, environment, utilities).
Autonomous Vehicles and Smart Cities: Discussions of the potential interplay but emphasize the still- developing nature of self-driving tech.
NEW QUESTION # 27
What is the primary difference between LoRa and LoRaWAN
- A. LoRa uses RF and LoRaWAN uses light-based communications
- B. LoRa is the Physical Layer and LoRaWAN is the Transport Layer
- C. LoRa is the modulation method (using CSS modulation at the Physical Layer) and LoRaWAN is the MAC sub-layer of the Data Link layer
- D. LoRa is used for communicating across the Internet and LoRaWAN is used only on the local link
Answer: C
Explanation:
* LoRa: This refers to the underlying radio modulation technique using Chirp Spread Spectrum (CSS). It defines how data is physically encoded onto the wireless signal.
* LoRaWAN: This is the network protocol built on top of LoRa. It manages device communication, network topology, and aspects like security. It operates at the MAC sublayer of the Data Link layer (Layer 2) of the OSI model
* LoRa vs. LoRaWAN: Key takeaway is that LoRa is the physical layer technology, while LoRaWAN adds the networking layer for management.
References:
LoRa Modulation: Technical explanations of Chirp Spread Spectrum (CSS).
LoRaWAN Specification: Official documentation detailing the network architecture and MAC layer functions.
OSI Model: Descriptions of the Data Link layer and its role in networking.
NEW QUESTION # 28
You are planning to outsource the implementation of a new LoRaWAN w of the service provider performing the implementation in all cases?
- A. Proof of concept
- B. Effective documentation
- C. Ongoing free support
- D. Ongoing paid support
Answer: B
Explanation:
* Outsourcing Knowledge Transfer: When outsourcing implementation, the service provider has firsthand knowledge of system setup and configuration. Clear documentation ensures this knowledge remains accessible to you after the project is complete.
* Ongoing Support: While paid/free support options influence long-term maintenance, they won't substitute missing documentation about the specific setup.
* Reducing Future Vendor Reliance: Detailed documentation helps mitigate over-reliance on the service provider for minor changes and troubleshooting, giving you more long-term autonomy.
* Proof of Concept: A POC typically happens before outsourcing, and focuses on validating the solution's feasibility, not ensuring smooth knowledge transfer thereafter.
References:
Service Level Agreements (SLAs): Documentation related to outsourced work may be defined as a deliverable within an SLA.
Knowledge Management Best Practices:
NEW QUESTION # 29
You are deploying a ZigBee network based on the frequency band available for ZigBee deployment worldwide. What allowable action will do the most to minimize ZigBee and 802.11 interference?
- A. Use the 2.4 GHz band for all 802.11 communications
- B. Use the 6 GHz band for all ZigBee communications
- C. Use the 5 GHz band for all 802.11 communications
- D. Use the 5 GHz band for all ZigBee communications
Answer: C
Explanation:
* Wi-Fi and Zigbee Interference: Both can operate in the 2.4 GHz band, leading to potential interference that degrades performance for both networks.
* 5 GHz Advantages:
* Less crowded: Fewer devices operate in the 5 GHz band, reducing interference potential.
* Wider Channels: 5 GHz supports wider channels, enabling higher data throughput for Wi-Fi.
NEW QUESTION # 30
What statement best describes the difference between authentication and authorization?
- A. Authentication proves identity and authorization determines access to specific resources
- B. Authentication is not used in wireless solutions and authorization is used in wireless solutions
- C. Authentication ensures privacy and authorization ensures availability
- D. Authentication is used in wireless solutions and authorization is not
Answer: A
Explanation:
* Authentication: Verifying "who" the user or device is (e.g., via passwords, certificates).
* Authorization: Controlling "what" a user or device can do once authenticated (e.g., read-only vs. read
/write permissions).
* Combined for Security: Both are essential. Authentication alone doesn't control access levels, and authorization without verification is meaningless.
References:
Identity and Access Management (IAM): Articles and resources outlining the core principles of authentication and authorization.
Cybersecurity Best Practices: Guides on securing systems will often emphasize the need for both authentication and authorization controls.
NEW QUESTION # 31
You are planning a wireless solution. Why should you consider an ongoing monitoring system for use after the solution is deployed?
- A. Implementation validation is never completed, it continues throughout the life of the system
- B. Monitoring the solution provides additional billable hours
- C. The number of users and the use of the solution will change over time and monitoring allows for detection of these changes
- D. To ensure that the system continues to meet the original requirements, even if users later indicate poor performance
Answer: C
Explanation:
* Ongoing Monitoring for Adaptability: Wireless networks are dynamic environments. Ongoing monitoring is essential because:
* Changing Usage Patterns: User numbers and how they utilize the network evolve over time.
* Capacity Adjustments: Monitoring reveals if the network needs scaling for more devices or changing use cases.
* Security: Helps detect unauthorized access or anomalies.
References
* Importance of Wireless Network Monitoring: Resources will detail its role in proactive management
NEW QUESTION # 32
You are creating documentation for a new wireless solution that is deployed in the organization. Why is it important to document APIs in use within the system?
- A. If APIs are in use, it typically indicates the use of custom scripts or application code. Future support will be easier when the APIs in use are documented.
- B. The APIs in use will not function without this documentation. The documentation is linked to the executable process of the APIs.
- C. If APIs are in use, it typically indicates that the vendor has not provided ideal support. Without documentation, you cannot prove this reality for a discount.
- D. It allows future support to implement APIs that have not been used at the time of deployment.
Answer: A
Explanation:
* Customization and Integrations: The presence of APIs often suggests a system is integrated with other platforms or has custom-built elements.
* Understanding Dependencies: Documenting used APIs helps clarify how different parts of the system interact and where potential issues might arise.
* Troubleshooting Efficiency: Detailed API documentation aids in resolving problems, allowing staff to assess interconnected systems effectively.
* Knowledge transfer: Future support teams won't have to reverse-engineer the system; documentation ensures smooth handover and understanding.
References:
Best practices API documentation: Guides on API documentation formats and the level of detail needed for maintenance. [Example: Swagger, OpenAPI Specification] (https://swagger.io/) Software Development Life Cycle (SDLC): Materials emphasizing the importance of documentation during development and support phases.
NEW QUESTION # 33
What part(s) of the OSI network model does the IETF primarily focus on for the development of standards?
- A. Network Layer and above
- B. All layers
- C. Physical Layerand above
- D. Data Link Layer
Answer: A
Explanation:
* IETF's Focus: The Internet Engineering Task Force (IETF) primarily develops and standardizes internet protocols operating at the Network Layer (Layer 3) and above in the OSI model.
* Key Protocols: Some prominent IETF-developed protocols include:
* IP (Internet Protocol): Foundation of internet addressing and routing.
* TCP (Transmission Control Protocol): Reliable, connection-oriented data transport.
* UDP (User Datagram Protocol): Connectionless, best-effort data transport.
* DNS (Domain Name System): Translates domain names into IP addresses.
* HTTP (Hypertext Transfer Protocol): Web communication.
References
* IETF Website: https://www.ietf.org/
* OSI Model: https://en.wikipedia.org/wiki/OSI_model
NEW QUESTION # 34
Which one of the following items has driven large serving 5- to 18-year-old students?
- A. Wearable body sensors
- B. Streaming music
- C. Cloud-based applications
- D. Online torrent sites
Answer: C
Explanation:
* 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.
* [Example: Project Tomorrow Speak Up Research Project on Digital Learning] (https://tomorrow.
org/speakup/)
* Network usage studies in schools: Research on bandwidth usage patterns can confirm the primary drivers of traffic in educational settings.
NEW QUESTION # 35
You have implemented a wireless mesh network. All mesh nodes are properly configured for participation in the same mesh network. Several of the mesh nodes are unable to connect to other mesh nodes. What action may provide a solution to this problem?
- A. Change the security settings on the faulty mesh nodes
- B. Change the output power settings only on the faulty mesh nodes
- C. Move the faulty mesh nodes to provide for better signal strength
- D. Place the faulty mesh nodes in their own mesh network
Answer: C
Explanation:
* Mesh Connectivity Depends on Signal: Mesh nodes relay data for each other. Weak signal strength between nodes can disrupt connectivity throughout the network.
* Troubleshooting Signal Issues: Physically relocating affected nodes can improve their ability to form stable connections with other nodes in the mesh.
* Why Other Options May Not Help:
* Separate Mesh: Splits the network, not solving the root connectivity issue
* Output Power: May help marginally, but significant improvement is typically achieved through repositioning.
* Security Settings: Unlikely to cause connectivity issues between properly configured nodes in the same mesh.
References:
Wireless Mesh Network Troubleshooting: Guides addressing signal strength and coverage concerns.
RF Site Survey Tools: Resources on software that can help visualize signal strength and aid in node placement.
NEW QUESTION # 36
What organization maintains and publishes the 802.15.4 Standard?
- A. Bluetooth SIG
- B. IETF
- C. IEEE
- D. Zigbee Alliance
Answer: C
Explanation:
* IEEE 802.15.4: The IEEE 802.15.4 standard is a fundamental specification for low-rate wireless personal area networks (LR-WPANs). It serves as the basis for many wireless IoT protocols.
* IEEE's Role: The Institute of Electrical and Electronics Engineers (IEEE) is the organization responsible for creating, maintaining, and publishing the 802.15.4 standard.
References
* IEEE 802.15.4 Standard: https://standards.ieee.org/standard/802_15_4-2020.html
* IEEE Website: https://www.ieee.org/
NEW QUESTION # 37
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?
- A. Improper grouping
- B. Improper delegation
- C. Privilege escalation
- D. Privilege creep
Answer: D
Explanation:
* 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.
NEW QUESTION # 38
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