Comprehensive and Detailed In-Depth Explanation:
Virtual Desktop Infrastructure (VDI) hosts desktop environments on centralized servers. This allows rapid deployment and consistent configuration across multiple users, minimizing manual setup and easing IT management.
* Option A: VDI still uses standard authentication methods.
* Option B: Licensing can actually be more expensive due to virtualization software and backend servers.
* Option D: VDI centralizes the desktop environment - viruses would affect the virtual session, not be
"contained locally."
CompTIA A+ Core 1 Exam Objective Reference:
* Objective 4.1: Compare and contrast cloud computing concepts.

After the issue has been identified and the backup of the system has been made, the next step is to establish a theory of probable cause. This involves researching the issue to determine the root cause of the problem. This can involve researching internally (e.g. referring to the system logs) or externally (e.g. searching online).
Once the probable cause has been identified, the technician can then move on to the next step of designing a plan of action to resolve the issue and implementing the solution.

Application virtualization is a technique that allows an application to run on a computer without being installed or affecting other applications on the system. Application virtualization creates a virtual environment for the application that isolates it from the underlying operating system and hardware. This way, the technician can verify the application deployment will not affect other legacy applications on the end users' computers.

Explanation
A patch panel is a device that connects multiple network cables in an organized and convenient way. A patch panel has a number of ports that correspond to different cables, such as Ethernet, coaxial, or fiber-optic cables.
A patch panel can help simplify the wiring and management of a network, as well as provide flexibility and scalability for adding or changing network devices.
A punchdown tool is a tool that can be used to terminate network cables into a patch panel. A punchdown tool has a blade that cuts and pushes the wires into the slots or contacts of the patch panel. A punchdown tool can help create a secure and reliable connection between the network cables and the patch panel.