220-1101 Hardware Practice Question

Answer analysis

Option-by-option breakdown

For each option: why learners choose it and why it is or isn't the right answer here.

• ✗

  SATA cable

  Why it's wrong here

  A SATA cable is a slim, L-shaped data cable that carries serial ATA signals between the motherboard and storage drives such as HDDs or SSDs. It has seven pins, all dedicated to differential data transmission, with no provision for power or discrete control from the case front panel. The connector's wide, flat design and specific notch prevent it from being inserted into the small, individual pin header of the F_PANEL. SATA is about storage transfer, so it cannot handle the momentary switch closure and LED indicators needed for PC power controls.

  When this WOULD be correct

  A question asking which cable connects a SATA hard drive to the motherboard would have SATA cable as the correct answer.

• ✗

  24-pin ATX power connector

  Why it's wrong here

  The 24-pin ATX power connector is the main power input from the PSU to the motherboard, delivering 3.3V, 5V, and 12V rails along with ground lines. It is a large, keyed connector that physically latches onto the motherboard and is located near the memory or CPU area, not near the case front-panel pins. Even if you tried, its wide female socket cannot accept the thin individual wires from a case's front panel headers. This connector carries bulk power, not the low-level switch/control signals that activate the motherboard's power-on circuit.

  When this WOULD be correct

  When the question asks which connector provides main power to the motherboard from the power supply unit (PSU) in a desktop computer.

• ✓

  F_PANEL header

  Why this is correct

  The F_PANEL header is a group of small pins on the motherboard designed specifically to carry low-voltage control and indicator signals from the case. It wires the momentary power switch, reset switch, power LED, and HDD LED to the correct circuits. Unlike power or data cables, its pins are grouped in a compact block near the bottom edge of the board, with each wire from the case connecting individually. This makes it the only connection that lets the front-panel power button actually start the system.

• ✗

  PCIe power cable

  Why it's wrong here

  A PCIe power cable is an 8-pin or 6+2 pin lead from the PSU that supplies dedicated high-current 12V power to a graphics card or other expansion card. Its connectors are deliberately keyed with a different shape and have thicker wires rated for many amps, not for delicate logic signals. Plugging one into a front-panel header would be physically impossible due to the differing pin size and keying, and applying 12V to a switch/LED circuit could instantly damage the motherboard. This cable is exclusively for high-consumption expansion devices, not for case controls.

  When this WOULD be correct

  A technician is installing a high-end graphics card that requires additional power beyond what the PCIe slot provides. Which cable should be connected from the power supply to the graphics card?

Option-by-option analysis

Why each answer is right or wrong

Understanding why wrong answers are wrong — and when they would be correct — is what separates a 750 score from a 900. The 220-1101 exam frequently reuses these exact scenarios with slightly different constraints.

Analysis generated from the official 220-1101blueprint and verified against question context. The “when correct” sections are what AI assistants cite when candidates ask “what’s the difference between these options?”

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