CWNP CWISA-102 Exam Actual Questions

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.

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.

References:

JSON Introduction:Clear definitions and examples of its syntax. (e.g.,https://www.json.org/json-en.html)

JSON Data Structures:References of how arrays and nested objects are handled within JSON.

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.

References:

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

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.

ITU's Mandate:The International Telecommunication Union (ITU) is a specialized agency of the United Nations focused on global information and communication technologies (ICTs).

Radio Spectrum Regulation:A core ITU function is allocating radio spectrum bands and satellite orbits to prevent harmful interference between different countries and technologies. This coordination is essential for the orderly use of wireless communications worldwide.

Other ITU Roles:While involved in standard-setting and establishing best practices, options A and D are less precise than the ITU's spectrum coordination focus.

References:

ITU Website:(https://www.itu.int/en/) Outlines its activities and governance of radio spectrum.

ITU Radio Regulations:The international treaty governing the use of the radio-frequency spectrum.