Internet of Things (IoT) Practice Exam

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Which technology is used as a visual programming tool to create a program by connecting colored blocks?

Scratch
Blockly
App Inventor
Flowgorithm

The correct answer is: Blockly

The correct choice is Blockly, as it is specifically designed as a visual programming tool that enables users to create programs by connecting colored blocks. This block-based interface is particularly useful for beginners and educational environments because it simplifies the programming process into an intuitive and visual format. Blockly supports various programming languages and allows users to easily manipulate code constructs, which enhances understanding of programming logic without requiring in-depth knowledge of syntax. While Scratch also utilizes a similar block-based approach to create animations and interactive stories, its primary focus is on education and media creation rather than general programming. App Inventor, on the other hand, is a tool for developing mobile applications using a block-based interface but is more specific to app development. Flowgorithm is used primarily for teaching algorithms through flowcharts, which is a different representation of programming concepts. Thus, Blockly stands out as the leading visual programming tool emphasized for its block connection feature.