A user routinely connects and disconnects multiple devices from a laptop. Which of the following options should a technician recommend to facilitate ease of user mobility?
Which of the following can a user utilize to share their mobile phone connection with their laptop?
Tethering refers to sharing a mobile phone's internet connection with another device, such as a laptop, either through USB, Bluetooth, or Wi-Fi. Tethering effectively turns the mobile phone into a personal hotspot for internet access.
Option A (IR): Incorrect. Infrared (IR) is used for short-range communication, such as remote controls, but it does not support internet sharing.
Option B (NFC): Incorrect. Near-field communication (NFC) is used for close-proximity data transfer, not for internet sharing.
Option C (Wi-Fi Direct): Incorrect. Wi-Fi Direct enables device-to-device communication but does not inherently provide internet sharing.
CompTIA A+ Core 1 Objectives: 1.4 (Configure basic mobile-device network connectivity)
An IT specialist sets up a wireless router in a SOHO environment. Afterwards, several devices cannot access the internet and are assigned IP addresses starting with 169.254. Which of the following is the best action to resolve this issue?
An IP address beginning with 169.254 indicates that the device has not received a valid IP from the DHCP server. Rebooting the router can resolve minor configuration or network glitches, allowing DHCP to function correctly. The other options, such as adjusting lease time or static IP addresses, do not address the core problem. CompTIA A+ Core 1 objectives emphasize DHCP troubleshooting in SOHO networks.
A mechanical engineer's PC has started randomly shutting off whenever the engineer attempts to render a design. The mechanical engineer states that the PC has worked for three years without issue. Which of the following should the technician perform first to diagnose the issue? (Select two).
The mechanical engineer's PC shutting off during resource-intensive tasks like rendering could be caused by overheating or hardware issues. The two most logical steps to diagnose the problem are:
B . Check if the computer is overheating: Rendering is a CPU- and GPU-intensive task that generates heat. Overheating could cause the system to shut down as a protective measure. Checking the system's temperature can help identify if this is the cause.
A . Listen for POST beeps when turning on the PC: POST (Power-On Self-Test) beeps can indicate hardware issues, such as with the motherboard, CPU, or GPU. Listening for beeps can help identify potential problems with these components.
Why the other options are incorrect:
C . Run chkdsk: This tool is used for checking disk integrity, but the symptoms don't suggest a hard drive issue.
D . Reinstall the operating system: Reinstalling the OS is a time-consuming step and not typically necessary for hardware-related shutdowns.
E . Check if the graphics card is compatible with the motherboard: If the PC has been working for three years, the GPU is already compatible with the motherboard.
F . Replace the HDD: There's no indication that the hard drive is causing the issue, as the problem occurs during rendering, which is more GPU/CPU-intensive.
This topic falls under the Hardware Troubleshooting domain in the CompTIA A+ Core 1 exam.
A technician needs to figure out why a laser printer is intermittently not feeding paper to print. The technician verifies the issue by running several copy-and-print tests. Which of the following should the technician do next?
Intermittent paper feeding issues in a laser printer are commonly caused by dirty or worn-out pickup rollers. Cleaning the rollers can restore proper functionality. This aligns with the CompTIA A+ Core 1 objective related to troubleshooting and maintaining printer
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