You have just finished upgrading the 250-watt power supply in your desktop computer to a 450-watt power supply. Now, the BIOS does not recognize one of the hard disk drives in the system during POST.
Which of the following troubleshooting steps is the BEST to try first?
Make sure that the hard disk is connected to the power supply.
While running a graphics editing program on your Windows workstation, a screen suddenly pops up with an error message warning. You note the error message, but the only way to continue working is to reboot your system.
What is this type of error screen called?
BSoD
A user reports that their computer is experiencing intermittent freezing and slow performance, especially when accessing files stored on the hard disk drive (HDD). You run diagnostic software and find no issues with the operating system or software applications.
The HDD’s SMART (Self-Monitoring, Analysis, and Reporting Technology) data shows several reallocated sectors.
What does this information MOST likely indicate, and what should be your next step?
The HDD is showing signs of physical wear; back up data immediately and replace the drive.
Which of the following BEST describes the role of the Trusted Platform Module (TPM) in enhancing system security?
Assessing whether the TPM is used to store cryptographic keys securely, preventing unauthorized access to encrypted data.
Which of the following is a typical boot device option that can be prioritized in the system firmware’s boot option sequence?
Network/PXE (Preboot Execution Environment)
You are tasked with evaluating a computer system that frequently experiences random shutdowns and OS blue screen errors. After eliminating software issues, you suspect a hardware problem.
Which of the following actions would be the MOST effective in evaluating the stability of the system’s power supply?
Use a multimeter to measure the output voltages of the power supply.
While trying to use a projector for a presentation, you receive an error that states, “No signal detected.”
What is the MOST likely cause of this error?
A loose HDMI cable
A technician is troubleshooting a computer that fails to boot and displays a “No bootable device” error. The technician confirms that the hard drive is powered and connected.
The technician also verifies that the boot order is correct. However, the technician also notices that the BIOS/UEFI settings have Secure Boot enabled, and the SATA mode is set to RAID.
What should the technician do next to resolve the issue?
Disable Secure Boot and change the SATA mode to AHCI.
You are a technician called to troubleshoot a desktop computer that fails to boot. The user reports that the computer powers on, but an error message indicates, “No bootable device found.”
Upon inspection, you notice that the hard drive activity LED is not lit, and you cannot hear the drive spinning.
What should be your first step to resolve this issue?
Check the power connectors to the hard drive.
When troubleshooting a Windows system that displays a Blue Screen of Death (BSOD), which of the following steps should you take to understand the cause of the error?
Check the error code and message displayed on the BSOD to identify the specific problem.
You have just finished upgrading your desktop system’s CPU. After running for about 15 minutes, the system spontaneously shuts down.
Which steps should you take FIRST to begin troubleshooting the issue? (Select two.)
- Make sure that you used thermal paste for the CPU.
- Check the CPU fan power.
A company has recently upgraded its systems to UEFI-based firmware, and some employees are experiencing issues accessing system settings during boot.
Which of the following actions would BEST evaluate and resolve the issue of missing the key prompt to access the UEFI setup program?
Use the Shift-click method on the Restart button from the Windows logon screen to access UEFI boot options.
A technician is troubleshooting a projector that keeps randomly shutting down. What is the most likely cause?
Overheating
A technician is troubleshooting a failed redundant array of independent disks (RAID) configuration and is unable to access the RAID configuration utility. What does this indicate?
Controller failure
A user reports that their computer is not booting and displays an error message stating, “Boot device not found.” You verify that the hard drive is properly connected and powered.
Upon entering the BIOS/UEFI settings, you notice that the boot order is set to prioritize USB devices over the internal hard drive.
What should you do to resolve the issue?
Change the boot order to prioritize the internal hard drive.
You are a system administrator tasked with optimizing the cooling system of a high-performance workstation used for video editing. The workstation frequently overheats, causing performance issues.
Based on the system’s UEFI settings, which of the following actions should you take to ensure the workstation operates efficiently without overheating?
Configure the duty cycle settings to a higher percentage to increase the fan speed and improve cooling efficiency.
After using your LCD monitor for about three months, you notice a small black dot in one area of the screen. Regardless of what is shown on the monitor, the dot remains the same color and in the same location.
Which of the following is the BEST method for removing the black dot from the monitor?
Play a video designed to fix dead pixels.
Every time a user attempts to save a file, the computer shows an error that reads, “Cannot read from the source disk.” What kind of issue does this indicate?
Drive issue
When configuring fan settings in the UEFI setup program, which option would you select to prioritize a quieter operation over cooling performance?
Quiet
A user reports that their computer is unable to boot and displays an error message stating, “Boot Device Not Found.” You have verified that the hard drive is properly connected and powered.
Upon accessing the UEFI/BIOS settings, you notice that the boot order is set correctly.
What should you analyze next to resolve the boot sector issue?
answer
Check if the hard drive is detected in the UEFI/BIOS settings.
A user reports that their computer is not booting up. Upon inspection, you find that the computer powers on, the fans are spinning, but the screen remains blank, and there are no beep codes.
The user also mentions that they recently installed a new graphics card.
Which of the following steps should you take to analyze and resolve the issue?
Check if the new graphics card is properly seated and connected.
You are a technician tasked with resolving a boot issue on a client’s computer. The system fails to boot and displays an error message indicating “No Bootable Device Found.”
Upon inspection, you notice that the system has multiple drives installed.
Which of the following actions should you take first to resolve the boot sector issue?
Check the UEFI/BIOS settings to ensure the correct boot order is set.
An employee at your company is experiencing an issue where their monitor intermittently loses video signal while working.
After confirming that the monitor is powered on and the input source is correctly set, you suspect a physical cabling issue.
Which of the following analyses would BEST help you determine the root cause of the intermittent video signal loss?
Analyze the cable specification and compatibility with the monitor and video card to ensure they meet the application requirements.
A company is planning to implement a secure method for storing cryptographic keys used in their data encryption processes. They have several computers that do not support Trusted Platform Module (TPM) technology.
The IT manager is considering using a Hardware Security Module (HSM) for this purpose.
Which of the following reasons BEST justifies the use of an HSM in this scenario?
An HSM provides a secure way to store cryptographic keys, especially for computers lacking TPM support.
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Lesson 1.1 The Hero of Problem Solving6
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Lesson 1.2 The Troubleshooting Methodology8
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1.4 Module Quiz6
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Lesson 2.1 Cables and Connectors48
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2.1.17 Lesson Review15
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Lesson 2.2 Motherboards38
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2.2.18 Lesson Review15
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2.3 Legacy Cables16
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2.3.5 Lesson Review10
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2.6 Mod Quiz15
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Mod Quiz 210
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Lesson 3.1 Power Supplies and Cooling20
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3.1.14 Lesson Review15
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Lesson 3.2 Storage Devices27
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3.2.13 Lesson Review15
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Lesson 3.3 System Memory25
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3.3.9 Lesson review10
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Lesson 3.4 CPUs25
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3.4.9 Lesson Review10
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3.7 Module Quiz20
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3 Final Quiz109
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Lesson 4.1 BIOS and UEFI30
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4.1.11 Lesson Review15
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Lesson 4.2 Power and Disk Issues40
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4.2.14 Lesson Review15
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4.3.1 System and Display Issues40
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4.3.10 Lesson Review15
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4.7 Module Quiz15
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Mod 4 Quiz49
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Lesson 5.1 Network Types38
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5.1.5 Lesson Review5
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5.2 Networking Hardware28
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5.2.11 Lesson Review15
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5.3 Network Cable Types35
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5.3.14 Lesson Review15
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5.4 Wireless Networking Types46
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5.4.15 Lesson Review15
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5.6 Mod qiz20
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Mod 560
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6.1 Internet Connection Types8
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Lesson 10.1 Printers and Multifunction Devices76
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Lesson 10.2 Print Device Maintenance52
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10.2.11 Lesson Review15
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10.1.14 Lesson Review15
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10.6 Mod quiz15
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10 Mod quiz51
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10 check point 140
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Lesson 12.1 Windows User Settings59
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12.1.13 Lesson Review15
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A+ Prep 150
