The user interface of an application can be classified into two types: GUI and ________.

The user interface of an application can be classified into two types: GUI and ________.

• A. CLI (Command Line User Interface)
• B. NUI
• C. VUI
• D. TUI

Answer: (A)

User interfaces are commonly described as graphical or text-based. A graphical user interface (GUI) presents windows, icons, and menus you interact with using a mouse or touch, while a command-line interface (CLI) relies on typing text commands in a terminal. This pairing—GUI and CLI—is the standard way to describe the two broad modes of interaction with software. The other options refer to different kinds of interfaces (natural, voice, or generic text-based) but they aren’t the conventional counterpart to GUI in this context. Therefore, the best completion is the command line interface.

User interfaces are commonly described as graphical or text-based. A graphical user interface (GUI) presents windows, icons, and menus you interact with using a mouse or touch, while a command-line interface (CLI) relies on typing text commands in a terminal. This pairing—GUI and CLI—is the standard way to describe the two broad modes of interaction with software. The other options refer to different kinds of interfaces (natural, voice, or generic text-based) but they aren’t the conventional counterpart to GUI in this context. Therefore, the best completion is the command line interface.