- (Topic 2)
A user sends a print job lo a network printer, and the print job uses double the amount of paper as expected. Which of the following should the user configure to get the expected result?

1. A. Duplex
2. B. Collate
3. C. Landscape
4. D. Transparency

Correct Answer: A
The user should configure the print job to use the Duplex option, which will print on both sides of the paper and reduce the amount of paper used.

- (Topic 4)
A technician just finished building a new PC and needs to install a firmware update for the system board UEFI. The technician is experiencing issues while accessing the USB key. Which of the following features should the technician most likely disable in order to complete this task?

1. A. TPM security
2. B. USB 3.0 support
3. C. PXE boot capability
4. D. Secure Boot

Correct Answer: D
Secure Boot is a feature of UEFI (Unified Extensible Firmware Interface) that prevents unauthorized software from running during the boot process. Secure Boot verifies the digital signature of the boot loader and the operating system, and only allows them to run if they are signed by a trusted authority. However, Secure Boot can also prevent some legitimate software, such as firmware updates, from running if they are not signed or recognized by the system. Therefore, the technician may need to disable Secure Boot in order to install a firmware update for the system board UEFI from a USB key34. The other features are not likely to interfere with the firmware update, unless they are misconfigured or incompatible with the USB key.
References
3: bios - Can’t enable secure boot in Windows 11 4: Acer aspire e5-571 Legacy Secure Boot?

- (Topic 4)
A technician needs to test a new USB headset for videoconference calls. Audio playback is working as expected, but sound from the microphone is not being recorded. The Device Manager and Sound settings show the microphone is installed. Which of the following should the technician do next?

1. A. Examine the application and device mute controls.
2. B. Connect the headset to a different USB port.
3. C. Check the device's driver release date.
4. D. Increase the speaker volume setting.

Correct Answer: A
The correct answer is A. Examine the application and device mute controls. One of the possible reasons for the USB headset microphone not working is that the microphone is muted in the application or device settings. The technician should check if the mute button on the headset or the microphone icon in the application is active. If so, the technician should disable them and try to record sound again.
Some applications may also have their own settings for the microphone input. The technician should make sure that the USB headset is selected as the input device and that the volume level is appropriate. The technician can also test the microphone in different applications to see if the problem is specific to one application or not.
The other options are less likely to solve the problem, because:
•Connecting the headset to a different USB port may not make any difference if the device is already installed and recognized by the system.
•Checking the device’s driver release date may not be relevant if the microphone was working before and no updates were installed recently.
•Increasing the speaker volume setting may not affect the microphone input at all, and may only make the audio playback louder.
For more information and tips on how to fix USB headset problems, you can visit these links:
•USB Headset Mic Not Working? Here Are All Possible Fixes - TechNorms
•Fix microphone problems - Microsoft Support
•USB Headset Not Working? Try These Fixes - Tech News Today

- (Topic 2)
A technician is installing new power supplies for the application engineering team's workstations. The management team has not yet made a decision about installing dual graphics cards, but they want to proceed with the project anyway. Which of the following power supplies would provide the BEST solution?

1. A. 1000W 24-pin modular power supply
2. B. 220VAC 9000J surge protector
3. C. 500W redundant power supply
4. D. 2000VA uninterruptible power supply

Correct Answer: A
A 1000W 24-pin modular power supply provides enough power to support a dual graphics card configuration, which requires a significant amount of power. A modular power supply allows the technician to connect only the cables that are necessary for the current configuration, reducing cable clutter and improving airflow inside the case. This makes it easier to install and maintain the power supply.

- (Topic 1)
A company has a dot matrix printer that uses carbon paper. The company reports that the first page is printing too light, although the following pages are still legible. Which of the following MOST likely needs to be fixed?

1. A. The print drum is worn and loose causing the printing to be light in places
2. B. The ribbon is low on ink or missing and must be replaced to get proper output
3. C. The heating element has failed, and a new one needs to be installed for proper transfer
4. D. The wrong type of filement is loaded, preventing it from sticking correctly
5. E. The fuser assembly is not calibrated properly, causing it to impact the paper too hard

Correct Answer: B
Dot Matrix printers do not use heat, they use a pin striking an inked ribbon (for the first copy, the subsequent copies are handled by the carbon paper)
The ribbon is low on ink or missing and must be replaced to get proper output in a dot matrix printer that uses carbon paper. References: CompTIA A+ Certification Exam Guide, Exam 220-1001, Page 361