CiscoAssociate level100-140Page 2 of 4

100-140 exam dumps: questions 101 to 200 of 389

Page 2 of the free 100-140 question bank for the Cisco Certified Support Technician (CCST) IT Support exam. Questions 101 to 200 are listed below, the first 5 in full with answers and explanations. Back to page 1 for the exam overview and FAQ.

Question bank last updated January 2025

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Free 100-140 practice questions

Questions 101 to 105 of 389

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100-140 Question 101

Select 4

A user wants to install a new graphics card in their desktop computer but is unsure if it is compatible with their system. As a support technician, what factors should you verify to ensure compatibility between the graphics card and the computer?

A
Check if the power supply unit (PSU) provides sufficient wattage for the new graphics card.
B
Verify if the computer case has enough physical space to accommodate the new graphics card.
C
Ensure the processor (CPU) is compatible with the graphics card manufacturer.
D
Confirm the motherboard has the correct PCIe slot for the graphics card.
E
Check if the operating system supports the drivers required for the new graphics card.

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Correct answers: A, B, D, E

Explanation

When installing a graphics card, several factors must be considered to ensure compatibility. These include the power supply (to provide sufficient wattage), the physical space within the case, the presence of the correct PCIe slot on the motherboard, and driver support from the operating system. While the CPU does not need to match the GPU manufacturer, compatibility issues may arise if the CPU causes a bottleneck, but this is not directly related to GPU installation compatibility.

A. Correct.
The power supply unit must provide sufficient wattage to power the graphics card and other components. Modern GPUs often require a minimum PSU wattage.
B. Correct.
The physical dimensions of the graphics card must fit within the computer case. Some high-end GPUs are larger and may not fit in compact cases.
C. Incorrect.
The processor does not need to be specifically compatible with the graphics card manufacturer. However, the CPU should not cause a performance bottleneck, which is a separate consideration.
D. Correct.
The motherboard must have the correct PCIe slot (e.g., PCIe x16) for the graphics card to physically and electrically connect properly.
E. Correct.
The operating system must support the drivers for the graphics card to ensure proper functionality and performance. Without compatible drivers, the card may not work as intended.

100-140 Question 102

Single answer

A technician is tasked with installing a new graphics card into a desktop computer. The graphics card requires a PCIe x16 slot. Upon opening the computer case, the technician finds PCI, PCIe x1, and PCIe x4 slots available. Which of the following actions should the technician take to resolve the compatibility issue?

A
Install the graphics card into the PCIe x4 slot since it is backward compatible.
B
Replace the motherboard with one that has a PCIe x16 slot.
C
Use a PCI to PCIe x16 adapter to install the graphics card.
D
Install the graphics card into the PCI slot to achieve limited functionality.

Show answer and explanation

Correct answer: B

Explanation

A PCIe x16 graphics card requires a PCIe x16 slot for proper operation. Since the current motherboard lacks a PCIe x16 slot, the only viable option is to replace the motherboard with one that provides the necessary interface. Attempting to use incorrect slots or adapters will not provide the required functionality and may lead to hardware damage.

A. Incorrect.
PCIe x4 slots are not compatible with PCIe x16 cards because they don't provide the necessary physical or electrical connections required for the card to function properly.
B. Correct.
Replacing the motherboard with one that has a PCIe x16 slot is the only solution that ensures the graphics card will have the correct interface and operate as intended.
C. Incorrect.
PCI to PCIe x16 adapters are not a viable solution because they do not support the bandwidth requirements or physical compatibility for a PCIe x16 graphics card.
D. Incorrect.
PCI slots are an entirely different interface from PCIe and are not compatible with PCIe x16 graphics cards, making this option invalid.

100-140 Question 103

Single answer

A user reports that their USB printer is not working after a recent driver update. You open Device Manager and notice a yellow triangle icon next to the printer. What is the best action to take to resolve this issue?

A
Roll back the printer driver to a previous version
B
Disable and re-enable the printer device in Device Manager
C
Uninstall the printer device and restart the computer
D
Update the printer driver to the latest version

Show answer and explanation

Correct answer: A

Explanation

The yellow triangle in Device Manager indicates a problem with the device, often related to the driver. Since the issue began after a recent update, rolling back to the previous driver version is the most appropriate solution. This action reverts the driver to a state that was working correctly, resolving the issue without introducing new variables.

A. Correct.
Rolling back the printer driver to a previous version is the best option because the issue occurred after a recent driver update, indicating the new driver may be faulty or incompatible.
B. Incorrect.
Disabling and re-enabling the device may refresh its state, but it will not resolve issues caused by a faulty driver update.
C. Incorrect.
Uninstalling the device may temporarily fix the issue, but the same problematic driver could be reinstalled, leading to the same problem.
D. Incorrect.
While updating to the latest driver is generally a good practice, in this case, the issue arose after a recent update, so the latest driver might already be causing the problem.

100-140 Question 104

Select 4

An employee reports that their external webcam is not functioning on their Windows 10 computer. You suspect the issue may be related to the device driver. Using Device Manager, what steps should you take to resolve the issue?

A
Open Device Manager, locate the webcam under 'Imaging devices' or 'Cameras,' right-click it, and select 'Update driver.'
B
Open Device Manager, locate the webcam, right-click it, and select 'Disable device' to permanently disable the webcam.
C
Open Device Manager, locate the webcam, right-click it, and select 'Uninstall device,' then restart the computer to allow Windows to reinstall the driver.
D
Open Device Manager, locate the webcam, and select 'Scan for hardware changes' to detect and reinstall missing drivers.
E
Open Device Manager, locate the webcam, right-click it, and select 'Roll back driver' if a recent driver update caused the issue.

Show answer and explanation

Correct answers: A, C, D, E

Explanation

Device Manager is a critical tool in troubleshooting hardware and driver-related issues. To resolve a non-functioning device like a webcam, you can try updating the driver, reinstalling it by uninstalling and rebooting, scanning for hardware changes, or rolling back to a previous driver if a new update caused the problem. Disabling the device, however, does not address the issue and is not a relevant troubleshooting step in this scenario.

A. Correct.
Correct: Updating the driver is a common troubleshooting step to resolve device issues, especially if the driver is outdated.
B. Incorrect.
Incorrect: Disabling the device will render it non-functional and does not resolve the problem. This is not a solution for a malfunctioning driver.
C. Correct.
Correct: Uninstalling the device and restarting the computer forces Windows to reinstall the driver, which can resolve corrupted driver issues.
D. Correct.
Correct: Scanning for hardware changes can help detect and reinstall missing drivers, which might fix the issue.
E. Correct.
Correct: Rolling back a driver can resolve issues caused by a recent driver update if it introduced compatibility problems.

100-140 Question 105

Single answer

A user reports that their USB printer is no longer recognized by their Windows computer after a recent driver update. You open Device Manager and notice a yellow exclamation mark next to the printer. What is the best next step to resolve this issue?

A
Roll back the printer driver to a previous version using Device Manager.
B
Disable and then re-enable the printer device in Device Manager.
C
Uninstall the printer device and restart the computer to allow Windows to reinstall the driver.
D
Update the printer driver to the latest version using Device Manager.

Show answer and explanation

Correct answer: A

Explanation

The yellow exclamation mark in Device Manager indicates a driver or device issue. Since the problem began after a recent driver update, rolling back the driver is the best immediate action to revert to a stable version. This avoids further issues that might arise from reinstalling or updating the driver without fully diagnosing the cause of the problem.

A. Correct.
Rolling back the printer driver to a previous version is the most appropriate step in this scenario since the issue started after a recent driver update. This action can revert the driver to a working version.
B. Incorrect.
Disabling and re-enabling the device might refresh the device, but it won't address the underlying issue caused by a faulty driver update.
C. Incorrect.
Uninstalling the device and restarting the computer might reinstall the same problematic driver, so it is not the best immediate solution in this scenario.
D. Incorrect.
Updating the driver to the latest version could potentially fix the issue, but since the problem occurred after a driver update, rolling back is a safer first step.

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100-140 practice questions 101 to 200 of 389

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