58. Which of the following file extensions are commonly used to install applications on a macOS machine? (Select three).
Answer: B,D,G
B, D, and G are commonly used to install applications on a macOS machine.
Files with the extensions .pkg, .dmg, and .app are commonly utilized for installing applications on macOS. These formats are specifically designed for macOS and are widely recognized by the operating system for application installation.
A) .mac
The .mac file extension is not associated with application installation on macOS. Instead, it is a less common format that does not serve the purpose of software installation, making it incorrect in this context.
B) .pkg
The .pkg file extension is indeed a common format for installing applications on macOS. It is used to package software and includes installation instructions, making it a suitable choice for application installations.
C) .deb
The .deb file extension is primarily used for Debian-based Linux distributions and is not applicable for macOS installations. Therefore, this option is incorrect as it does not relate to the macOS environment.
D) .dmg
The .dmg file extension is a disk image file format used specifically in macOS for distributing software. It is commonly used for packaging applications, allowing users to mount the image and easily install the software, making it a correct choice.
E) .msi
The .msi file extension is a Windows Installer Package format, used for installation on Windows operating systems. It is not compatible with macOS, hence it is not a correct option for this question.
F) .appx
The .appx file extension is used for packaging applications in the Windows environment, specifically for the Windows Store. As such, it does not apply to macOS installations, making this option incorrect.
G) .app
The .app file extension indicates a macOS application bundle, which is a directory structure that holds the executable and all associated resources. It is a standard way to distribute and install applications on macOS, confirming its correctness as a choice.
Conclusion
In summary, .pkg, .dmg, and .app are the three file extensions that facilitate application installations on macOS, each serving distinct roles in the process. Options A, C, E, and F are not applicable to macOS, thereby confirming that the selected options are the only correct ones for the question.