Free CompTIA A plus practice test question 2 for A+ 220-901 Hardware Exam

Free CompTIA A+ practice test question 2 for A+ 220-901 Hardware Exam


Question 2

A technician is not able to boot to Windows OS. A “no boot device found” message appears on the screen when the computer restarts. Which of the following is the MOST likely cause of the error message?

  1. HDD is set to Cable Select.
  2. A bootable HDD is not recognized in the BIOS.
  3. Corrupt files in the operating system.
  4. A rootkit has been installed.

The correct answer is given at the very bottom of the page – this will give you a chance to think about it!

A+ 220-901 Hardware Exam Objectives

Main Domain: 1.0 Hardware

Sub-Objective: 1.1   Given a scenario, configure settings and use BIOS/UEFI tools on a PC.


Verify that your hard drive is detected by the BIOS or that you can see your new hard disk (if applicable) on the boot screen. Some computers have this option enabled, where you can see other components as well. To see it press the DEL, F1 or F2 key at boot screen. The most obvious sign that BIOS is unable to detect a hard drive is of course that the BIOS is not registering the hard drive. Note that on some boards, the hard drive with the bootable OS must be connected to the first SATA connector. This one is typically labeled SATA 0 (zero). The last detractor “A rootkit has been installed” gives access, but doesn’t block and so is unlikely to cause the event.




Click here for the 220-901 & 220-902 A+ practice tests.

The correct answer is: 2) A bootable HDD is not recognized in the BIOS.


6 thoughts on “Free CompTIA A plus practice test question 2 for A+ 220-901 Hardware Exam

      1. Hi
        is this free practice test is a full complete version?
        or if I buy practice test from CompTIA is better ?

        1. Hi John, the free practice tests are not complete test preparation materials. For that you will need to buy the full version with all the questions, exam simulations etc. To see the products we offer for sale go to: No note that we produce CertBlaster and not CertMaster. CertMaster is developed by CompTIA and you can see reviews by scrolling to the bottom of this page:
          For reviews of CertBlaster just Google “CertBlaster review”.

  1. I feel like this should be worded “no boot device found” I have never seen the bios say “a nonbootable device found”

    1. Thanks for your feedback Jacob! we’ve seen it both ways and with the one you mention, more frequently on newer BIOS. The CompTIA objectives lump that topic in a grout. CompTIA does not specify it as a term.

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