220-1201 Exam Dumps - CompTIA A+ Core 1 Exam (2026)

A crimper is specifically used to attach RJ45 connectors to the ends of network cables. It pressesthe connector pins into the cable ' s wires, establishing a secure electrical connection. A punchdown tool is used for wiring patch panels or keystone jacks, not for attaching connectors.

Mobile Device Management (MDM) enrollment ensures that mobile devices meet security and access policies required by the corporate network. By enrolling the device in MDM, the technician can apply necessary configurations and enable corporate app access.

An NVMe port, typically implemented through an M.2 slot, is designed specifically for NVMe-based solid-state drives (SSDs). CompTIA A+ explains that NVMe (Non-Volatile Memory Express) is a high-performance storage protocol that communicates directly with the CPU over PCIe lanes, offering significantly faster read/write speeds compared to SATA-based SSDs.

SATA drives (A) connect via SATA ports, not NVMe/M.2 PCIe slots. SAS drives (C) are enterprise-level storage devices requiring SAS controllers and are incompatible with consumer desktop motherboards. Optical drives (D) use SATA or USB interfaces and cannot be installed in an NVMe slot.

Thus, the only device designed for and compatible with an NVMe slot is a solid-state drive (SSD) using the NVMe protocol.

If a computer can access internal network resources but cannot reach external websites, the most likely issue is a DNS configuration problem. According to CompTIA Core 1 (220-1201) networking troubleshooting methodology, DNS should be one of the first items checked when internet access fails but local connectivity remains intact.

DNS translates human-readable domain names into IP addresses. If DNS settings are incorrect, missing, or pointing to an invalid server, the computer will be unable to resolve website names even though it has network connectivity. Since other users on the same network can access the internet, the issue is isolated to the individual workstation.

Replacing the network cable is unnecessary because internal connectivity is already working. Restarting the DHCP server would impact all users, not just one. Adjusting firewall rules on the router would affect the entire network rather than a single computer.

CompTIA emphasizes starting with least disruptive and most likely causes when troubleshooting. Verifying DNS settings aligns with this best-practice approach.

CompTIA A+ repeatedly highlights that modern motherboards require two power connectors:

The 24-pin ATX main power connector

The 4-pin or 8-pin CPU power connector (EPS connector)

If the CPU power connector is missing, the system will not POST, even though other components appear to have power. This is a very common mistake after replacing PSUs and is specifically noted in CompTIA materials as a frequent cause of “no boot” scenarios.

Insufficient wattage usually causes instability, not a total failure to start. RAM is unrelated to powering on. Redundant PSUs are used in servers, not gaming PCs.

Thus, the missing CPU power connector is the correct diagnosis and matches A+ hardware troubleshooting guidelines.