Free RC0-903 Exam Braindumps
CompTIA A+ Recertification Exam for Continuing Education Questions 46–50 (page: 11)

Updated On: 10-Feb-2026

A technician is troubleshooting a desktop that is having intermittent issues with locking up and system errors. The technician suspects that the problem might be that not enough power is getting to the motherboard. Which of the following tools would a technician use to determine if the hypothesis is correct?

  1. POST card
  2. Loopback plug
  3. Multimeter
  4. Cable tester

Answer(s): C



The OSD of a monitor indicates the proper video source is selected, but no image is displayed. Which of the following issues are the MOST likely reasons? (Select TWO).

  1. The source cable is disconnected
  2. The monitor’s brightness is set too low
  3. The backlighting of the monitor is faulty
  4. The monitor’s contrast is set too high
  5. No device is sending source video

Answer(s): A,E



A technician is working on a server with high latency on the mapped network drive. Upon entry into the server room, the technician suspects an issue with one of the drives in the array. Which of the following would the technician do to resolve the problem?

  1. Reseat the drive cable in the array.
  2. Replace the RAID controller.
  3. Replace the faulty drive in the array.
  4. Reinstall the RAID drivers.

Answer(s): C



A user, Ann, reports that her company laptop cannot pick up a wireless connection in certain areas of a building. However, users working on their laptops in the common areas have Internet connectivity. Which of the following is the MOST likely cause?

  1. Weak RF signals
  2. Out of date Ethernet driver
  3. Enabled MAC filtering
  4. Duplicate IP addresses

Answer(s): A



After receiving a call from an executive, a technician walks into a meeting room to find that the projector is not showing the screen of the executive’s laptop. The projector shows a
message that reads “No video signal”. Which of the following is the FIRST thing that the technician should do?

  1. Adjust the laptop's screen brightness
  2. Replace the projector's bulb
  3. Verify the VGA cable is connected
  4. Ensure secondary display is enabled

Answer(s): C



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