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Practice Test Hardware Flashcards

7 cards from real COMPTIA practice questions. Tap to flip, then mark Knew It or Still Learning — missed cards come back until you master them.

Read the first 7 Practice Test Hardware flashcards as text

  1. A technician is building a workstation that requires ECC RAM. Which use case BEST justifies ECC memory?

    Answer: Server handling financial transaction processing

    ECC (Error-Correcting Code) memory detects and corrects single-bit errors, making it essential for servers and workstations where data integrity is critical.

  2. Which connector type is used to attach a SATA SSD to a motherboard for both power and data?

    Answer: Separate 7-pin data and 15-pin power connectors

    SATA SSDs use a 7-pin data connector and a separate 15-pin power connector, both of which must be connected.

  3. A user reports their PC randomly shuts down during gaming but works fine during light tasks. What is the MOST likely cause?

    Answer: Inadequate power supply wattage

    A PSU that cannot deliver sufficient wattage under full GPU and CPU load will trigger a protective shutdown during intensive tasks like gaming.

  4. What is the purpose of thermal paste applied between a CPU and its heatsink?

    Answer: It fills microscopic air gaps to improve thermal conductivity

    Thermal paste fills microscopic surface imperfections between the CPU lid and heatsink, eliminating insulating air gaps and improving heat transfer.

  5. Which RAID level provides disk striping with parity, requiring a minimum of 3 drives and tolerating one drive failure?

    Answer: RAID 5

    RAID 5 uses block-level striping with distributed parity across a minimum of 3 disks, allowing recovery from a single disk failure.

  6. A technician replaces a CPU and notices the system will not POST. The motherboard has a debug LED lit. What should the technician check FIRST?

    Answer: CPU compatibility with the motherboard

    A new CPU may not be compatible with the current motherboard BIOS version or socket type, which would prevent POST from completing.

  7. What technology allows a NVMe SSD to communicate directly with the CPU, bypassing the traditional storage controller?

    Answer: PCIe bus via M.2 or U.2 connector

    NVMe SSDs use the PCIe bus (via M.2, U.2, or add-in card) to communicate directly with the CPU, achieving far lower latency than SATA.