Quad-channel memory architecture allows the CPU to access four memory modules simultaneously, increasing the memory bandwidth and performance. DDR4 RAM is a type of memory that has higher speed and lower power consumption than DDR3. SODIMM is a smaller form factor of memory that is typically used in laptops, not desktops. ECC RAM is a type of memory that can detect and correct errors, but it is more expensive and slower than non-ECC RAM. Triple-channel memory architecture is less common and less efficient than quad-channel. References: https://www.comptia.org/certifications/a#examdetails
https://www.comptia.org/blog/what-is-ddr4-ram https://www.comptia.org/blog/what-is-quad-channel-memory

MDM (Mobile Device Management) is a policy that allows the technician to remotely manage, secure, and monitor the personal devices that employees use for work purposes. MDM can enforce security settings, such as passwords, encryption, and antivirus software, on the personal devices. MDM can also remotely wipe or lock the devices in case of loss, theft, or termination of employment. MDM can protect company information by preventing unauthorized access, data leakage, or malware infection on the personal devices.
References
What is Mobile Device Management (MDM)?
Chapter 2: Networking

The correct answer is A. Enable 32-bit drivers on the Print Server.
A print server is a computer or device that manages the printing requests from multiple clients over a network.
A print server can share one or more printers with different types of clients, such as Windows, Mac, or Linux.
However, to ensure compatibility and functionality, the print server must have the appropriate drivers for each printer and each client1.
A driver is a software component that enables the communication and interaction between a device and an operating system. A driver must match the specifications and features of the device, as well as the architecture and version of the operating system. A driver that is incompatible with either the device or the operating system may cause errors, malfunctions, or performance issues2.
In this scenario, the technician installed a new printer that is being shared over the network via a 64-bit Windows Print Server. This means that the print server has a 64-bit operating system and a 64-bit driver for the printer. However, two users who have computers with a legacy OS (an older or outdated operating system) are unable to print to this new printer. This may be because their computers have a 32-bit operating system and require a 32-bit driver for the printer.
To resolve this issue, the technician should enable 32-bit drivers on the Print Server. This means that the technician should install and configure a 32-bit driver for the printer on the print server, in addition to the existing 64-bit driver. This way, the print server can support both 64-bit and 32-bit clients, and allow them to print to the same printer34.
To enable 32-bit drivers on a Windows Print Server, the technician can follow these steps4:
* On the print server, open Control Panel and select Devices and Printers.
* Right-click on the printer that needs a 32-bit driver and select Printer Properties.
* Click on the Sharing tab and check the box that says Share this printer.
* Click on Additional Drivers and check the box that says x86 (for 32-bit).
* Click OK and follow the instructions to install and configure the 32-bit driver.
For more information about print servers, drivers, and compatibility issues, you can refer to the following web search results: What is a Print Server?, What is a Device Driver?, How to Install Additional Drivers for Shared Printers, How to Enable 32-Bit Drivers on Windows Server.

The best way to clean up the toner that spilled into the printer is to use an ESD-safe vacuum. An ESD-safe vacuum is a special type of vacuum that has a filter that traps toner particles and prevents them from escaping into the air. An ESD-safe vacuum also has a grounding wire that prevents static electricity from building up and damaging the printer's components. Toner is electrically conductive and can cause short circuits or sparks if it contacts sensitive parts of the printer. Therefore, using an ESD-safe vacuum is the safest and most effective method to remove the toner from the printer.
Other methods, such as a magnetic duster, compressed air, or a damp cloth, are not recommended for cleaning up toner spills. A magnetic duster is a device that uses a magnet to attract toner particles, but it can also damage the printer's components that rely on magnetism, such as the drum or the fuser. Compressed air can blow the toner around and create a cloud of dust that can be harmful to breathe or contaminate other parts of the printer. A damp cloth can smear the toner and make it harder to remove, as well as cause corrosion or rust on the printer's metal parts.
References:
* Cleaning up Toner Spills or Leaks Inside the Printer - Xerox Support1
* How to Clean Up Toner Spills - YouTube2
* How to Clean up a Laser Toner Spill - Cartouches Certifiees3

This is because a docking station can connect multiple monitors to a laptop without using USB ports, which are disabled in this scenario. A splitter cable would only allow two monitors to be connected, not three. A discrete graphics card would require opening the laptop and installing hardware, which may not be feasible or allowed in a high-security environment. An HDMI switch would only allow one monitor to be active at a time, not all three simultaneously.