CompTIA exam questions
A technician encounters a PC where they can hear the power supply fan running, but the system is not booting up and there is no display. Which of the following are the MOST likely causes? (Select TWO).
A. Bad PCI card
B. Bad Motherboard
C. Bad RAM
D. Bad boot.ini file
E. Bad Power Supply
A computers time settings reset every time it is unplugged. This is a symptom of a faulty:
A. Memory module.
B. Power supply.
C. Motherboard.
D. CMOS battery.
A laptop boots fine but after a few minutes the LCD screen fades out into a very dim image. Which of the following is the cause of the problem?
A. Weak battery
B. Power supply is failing
C. LCD screen connector is loose
D. LCD inverter is failing
A technician is troubleshooting a computer that will not boot. They have verified the power outlet and cable are working properly, and the power cable is properly connected. However, when the technician presses the power button on the computer, nothing happens. Which of the following tools should the technician use to further troubleshoot the issue?
A. Punch down tool
B. POST card
C. Power supply tester
D. Loopback plug
A technician is using a test tool that is displaying the current voltage output of a power supply on the tool. Which of the following tools is the technician using?
A. Loopback plug
B. Cable tester
C. POST card
D. Multimeter
A technician has been dispatched to a customer site to diagnose an issue where the computer turns off intermittently. Upon arriving at the site, the technician detects a smoke smell coming from the computer. Which of the following is the BEST solution?
A. Power down the system and replace the CPU.
B. Power down the system and replace the power supply.
C. Install an additional case fan for proper ventilation.
D. Remove the side panel for proper ventilation.
A technician has installed a replacement motherboard in a desktop case with no other modifications. All power connectors and drive data connectors have been connected to the new motherboard; however, the system will not power on. Which of the following is MOST likely the cause?
A. An incorrect firmware version resides on the motherboard
B. The voltage selection on the power supply is set incorrectly
C. The front panel connector is not connected properly
D. The RAM is not correctly installed in the new motherboard
A user reports that after configuring the BIOS to boot to the hard drive first, the system still tries to boot from the optical drive. Which of the following is the MOST likely cause?
A. Optical drive
B. Power supply
C. CMOS battery
D. CD-ROM disk
A technician is diagnosing a computer receiving the following message upon boot: “RAID degraded.” Which of the following is MOST likely the cause of such an issue?
A. Faulty RAM
B. Faulty RAID battery
C. Faulty power supply
D. Faulty hard drive
Mike, a technician, is getting ready to upgrade the graphics card in a customer’s computer with a performance PCIe graphics card. The customer has verified that she has a 16x PCIe slot on her motherboard. Which of the following may also need to be upgraded?
A. RAM
B. Motherboard
C. Power supply
D. Processor