NFC (Near-Field Communication) is a subset of RFID technology designed for very short-range wireless communication, typically within a few centimeters. It is primarily used for contactless transactions, like mobile payments, and can also support peer-to-peer data exchanges. NFC operates at 13.56 MHz and enables devices to communicate when placed near each other.
Reference: "CompTIA A+ Complete Study Guide" by Quentin Docter - Chapter 7, "Wireless and SOHO Networks", page 400.

CompTIA A+ emphasizes virtualization as an ideal solution during system phase-out or transition periods.
The correct approach here is a P2V (physical-to-virtual) conversion and hosting the server in an Infrastructure as a Service (IaaS) environment. This removes the need for physical hardware while still keeping the application operational for its final year. IaaS provides full control over OS and applications, making it suitable for legacy systems that cannot be rewritten.
Colocation (Option A) still requires physical hardware. PaaS (Option C) is inappropriate because PaaS requires rewriting or replatforming the application. Shutting down the server after a backup (Option D) makes the application immediately unusable.
Thus, the best method is to convert to a virtual machine and host it on IaaS.

Atoner probe(also known as a tone generator and probe) is the best tool fortracing and identifying cablesin a patch panel or wall jack. The tone generator sends a signal through the wire, and the probe helps locate the cable by detecting the tone.
Option A (Crimper):Used to attach connectors (e.g., RJ-45), not for tracing cables.
Option B (Punchdown tool):Used to terminate cables into patch panels or keystone jacks.
Option C (Cable stripper):Used to remove insulation, not to trace cables.
CompTIA A+ Core 1 Exam Objective Reference:
Objective 5.1: Identify basic cable types, their connectors, and their features.

SMB (Server Message Block)is a protocol used to access files and printers over a network, including across shared network folders. It enables the user to access and print files stored remotely on a shared directory.
Option A (ADF):Automatic Document Feeder - hardware, not a network protocol.
Option B (USB):Used for direct physical connections, not for printing over networks.
Option C (PCL):Printer Command Language - relates to printer drivers, not file sharing or access.
CompTIA A+ Core 1 Exam Objective Reference:
Objective 3.4: Given a scenario, install and configure printers.

A docking station allows users to connect multiple peripherals (monitor, keyboard, mouse, etc.) to a laptop with a single connection, reducing cable clutter and improving convenience.
From CompTIA A+ 220-1101 Official Study Guide, Objective 3.1 - Laptop hardware and connections:
"A docking station enables the use of multiple external devices with a laptop using only one or two connections, making it ideal for office environments." Verified Source:
CompTIA A+ Core 1 (220-1101) Official Study Guide, Chapter 3: Laptop Hardware CompTIA Exam Objectives 220-1101, Domain 3.1