Master CWNP CWISA-103 Exam with Reliable Practice Questions
Upgrade to PremiumWhat metric is used to express a relative increase or decrease in signal strength?
Correct : C
Decibel (dB):A logarithmic unit expressing ratios of power or signal strength. It's used in RF contexts due to the wide range of signal levels encountered.
Examples:
dBm:Decibels relative to one milliwatt (power measurement).
dBi:Decibels relative to an isotropic antenna (antenna gain).
Reference
Decibel:https://en.wikipedia.org/wiki/Decibel
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What is a fundamental structural feature of JSON? (Choose the single best answer.)
Correct : A
JSON Fundamentals:JSON (JavaScript Object Notation) is a text-based format for representing data in a structured, yet flexible way. Its key features are:
Key-Value Pairs:Information is organized as 'key':'value' pairs, making it human-readable.
Plaintext:JSON is not encrypted, ensuring easy parsing across different systems.
JSON vs. Other Options
Not Encrypted:Security must be handled at a higher layer if needed.
Not Optimized for Databases:While JSON can be stored in databases, it's designed for data exchange, not database structure.
Not Inherently Compressed:Compression can be used with JSON, but it's not a core feature.
JSON Data Structures:Explanations of how arrays and nested objects are handled within JSON.
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What software is typically stored in ROM and is used to initialize a device?
Correct : A
Firmware Definition:Firmware is a type of software embedded in hardware devices. It provides low-level instructions that control the basic operations and initialization of the device.
ROM Storage:Firmware is typically stored in Read-Only Memory (ROM) or other forms of non-volatile memory, meaning it persists even when the device is powered off.
Functions:
Booting:Initiates the hardware and loads the operating system.
Hardware Control:Provides an interface between the hardware and the operating system.
BIOS:The firmware on PCs is often referred to as BIOS (Basic Input/Output System).
Reference
Firmware Explanation:https://en.wikipedia.org/wiki/Firmware
ROM:https://en.wikipedia.org/wiki/Read-only_memory
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Which one of the following items has driven large serving 5- to 18-year-old students?
Correct : A
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.
Reference
Trends in education technology:Reports on the rise of cloud-based learning platforms in schools.
Network usage studies in schools:Research on bandwidth usage patterns can confirm the primary drivers of traffic in educational settings.
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What is an advantage of using HTTP-based processing?
Correct : C
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
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