Operating system updates are used to secure a device from known exploits. Operating system updates are patches or fixes that are released by the vendor to address security vulnerabilities, bugs, or performance issues.
Operating system updates can also provide new features or enhancements to the device. It is important to keep the operating system updated to prevent attackers from exploiting known flaws or weaknesses.

Explanation
https://support.microsoft.com/en-us/windows/common-file-name-extensions-in-windows-da4a4430-8e76-89c5-5
.pkg and .dmg are files used to distribute and install applications on macOS. .pkg files are installer packages that may contain multiple files and executable code, while .dmg files are disk images that can contain a single bundled application or multiple applications. .app files are typically the main executable files for macOS applications. The other options listed are file extensions for applications or installers on other platforms (such as .deb for Debian-based Linux systems, .msi for Windows, and .apk for Android). This information is covered in the Comptia A+ Core2 documents/guide under the Mac OS section.

The user should configure extensions/add-ins. Since the issue involves a browser plug-in, checking if the extension or add-in is enabled or properly configured can resolve the issue. If the plug-in is disabled, the OTP prompt will not appear as expected.
Reference: CompTIA A+ 220-1102 Exam Objectives, Domain 3.0 Software Troubleshooting

Disk Cleanup is a tool that can free up some space on a system drive that is nearly full. It can delete temporary files, cached files, recycle bin files, old system files and other unnecessary data. Resource Monitor is a tool that shows the network activity of each process on a Windows machine. Disk Defragment is a tool that optimizes the performance of a hard drive by rearranging the data into contiguous blocks. Disk Management is a tool that allows creating, formatting, resizing and deleting partitions on a hard drive. Verified Reference: https://www.comptia.org/blog/how-to-use-disk-cleanup https://www.comptia.org/certifications/a