Multifactor authentication (MFA) requires two or more independent credentials from different categories: something you know, something you have, and something you are. Mobile applications (such as authenticator apps) and Short Message Service (SMS) text codes are common second factors, representing "something you have." Video surveillance, access control lists, door locks, and login scripts are security controls but not authentication factors for logging into a system. The official CompTIA Core 2 content highlights mobile authenticators and SMS as standard MFA methods to secure systems against unauthorized access.

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.

When a technician is unable to connect to a laptop over a VPN, one of the most common reasons is that the firewall settings on either the laptop or the network are blocking the connection.
Wireless protocol: Unrelated, as the technician is already connected to the VPN.
DHCP pool: Unlikely to be the issue, as it deals with IP address assignment.
Content filtering: Typically involves filtering web content, not affecting direct connections.
Firewall: The correct setting to review, as it may block the necessary ports or services required for remote access.

Over time, especially with frequent opening, modification, and saving of large files, a hard disk drive (HDD) can become fragmented. Fragmentation occurs when pieces of individual files are scattered across the disk, leading to longer read and write times, which can significantly slow down the computer. Disk defragmentation reorganizes these fragmented files, placing the pieces closer together on the drive, which improves access time and overall system performance.
Disk Defragment: Using the Disk Defragment tool on a Windows 10 system with an HDD will help in reorganizing the data more efficiently, thus potentially remedying the slow performance issue.
The Registry Editor (B) is a tool that allows for the viewing and editing of the Windows registry and is generally not used for performance improvement but rather for system settings and configuration adjustments. System Information (C) provides a detailed look at the computer's hardware and system details but does not offer tools for performance improvement. Disk Cleanup (D) can help free up space on the hard drive by removing temporary files and system files that are no longer needed, which can indirectly improve performance but is not the primary tool for addressing fragmentation.

Open Settings, select System, select Display, and change the Scale and layout setting to a higher percentage123