- (Topic 1)
Which of the following is designed to be used in commercial spaces?

Correct Answer:C
Plenum cabling is designed for use in commercial spaces where cables run through air ducts or plenum spaces, as it has fire-resistant properties and emits less toxic smoke.
Why Not A (USB 3.1 Gen 2): USB is for peripheral connections, not large-scale commercial installations.
Why Not B (Straight tip fiber connector): Fiber connectors are for high-speed connections but are not specifically for commercial spaces.
Why Not D (Cat 8): While Cat 8 is high-speed, it is not uniquely suited for commercial spaces like plenum cabling.
CompTIA A+ Exam Reference: Core 1 (220-1201), Section 3.1, cabling standards.

- (Topic 1)
A technician receives a tablet that looks like it has a bulge inside. The bulge is pushing the screen away from the backplate. The tablet still turns on when it is plugged in, but the screen looks damaged and turns off when unplugged. Which of the following is the most likely cause of this issue?

Correct Answer:C
The most likely cause is a swollen battery, which occurs when the battery's internal components break down, causing a buildup of gas. This results in:
Physical Symptoms: The battery bulges, pushing the screen away.
Operational Symptoms: The device may still power on when connected to a charger but fails to hold a charge due to battery degradation.
Option A (Malfunctioning power supply): Incorrect. Power supply issues affect charging but do not cause physical bulging.
Option B (Damaged charge port): Incorrect. A damaged port can prevent charging but does not explain the bulge.
Option D (Broken screen): Incorrect. A damaged screen does not cause the device to
bulge; it is likely a secondary effect of the swollen battery.
Safety Note: A swollen battery poses a risk of fire or explosion and should be replaced immediately following proper disposal procedures.
References:
CompTIA A+ Core 1 Objectives: 5.5 (Troubleshooting common issues with mobile devices)

- (Topic 1)
A technician is troubleshooting a connectivity issue on a network computer. The technician runs ipconfig in a command prompt and receives the following IP address:169.254.0.6. Which of the following is most likely the type of IP address being assigned?

Correct Answer:C
Comprehensive and Detailed In-Depth Explanation:
An IP address starting with169.254.x.xis aself-assigned address(also calledAPIPA– Automatic Private IP Addressing). It??s used when a client device cannot contact a DHCP server. This address allows limited communication on the local network segment butno internet access.
✑ Option A:DHCP reservations assign specific IPs from the DHCP server — they
don??t result in APIPA.
✑ Option B:Dynamic assignment from DHCP assigns valid IPs in the proper subnet, not 169.254.x.x.
✑ Option D:Static IPs are manually set and would not fall in the 169.254.x.x range unless set incorrectly.
CompTIA A+ Core 1 Exam Objective Reference:
✑ Objective 2.6: Given a scenario, configure and troubleshoot network connectivity.

- (Topic 1)
Which of the following best characterizes the use of a virtual machine as a sandbox?

Correct Answer:B
A sandbox in virtualization allows testing an application in an isolated environment to observe its behavior without affecting the host system.
Why Not A (Run an application on multiple workstations): This describes application virtualization, not sandboxing.
Why Not C (Migrate a legacy application): This is about virtualization for legacy support, not testing.
Why Not D (Create a firewall): A firewall does not act as a sandbox for application testing. CompTIA A+ Exam Reference: Core 1 (220-1201), Section 4.2, virtualization and sandboxing.

- (Topic 1)
A customer reports slow network speeds. Which of the following components is most likely failing?

Correct Answer:B
Comprehensive and Detailed In-Depth Explanation:
ANetwork Interface Card (NIC)is the hardware responsible for network connectivity. If the NIC is failing or underperforming (e.g., due to a bad driver, hardware fault, or misconfiguration), it can causeslow or unstable network speeds.
✑ Option A (CPU):A failing CPU affects overall system performance but not
specifically network speed.
✑ Option C (HDD):A slow hard drive causes application lag, but not poor network performance.
✑ Option D (RAM):Affects multitasking and speed, not network throughput. CompTIA A+ Core 1 Exam Objective Reference:
✑ Objective 3.5: Given a scenario, troubleshoot problems related to wired and wireless networks.
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- (Topic 1)
A small company wants the ability to print in full color but needs to pay a minimal initial purchase price for the printer Which of the following is the best option?

Correct Answer:B
Inkjet printers are the best choice for a small company seeking full-color printing with a minimal initial cost. While they have higher operating costs (due to ink), they are affordable and capable of high-quality color output.
Why Not A (Thermal printer): Thermal printers are not designed for color printing and are typically used for labels or receipts.
Why Not C (Dot matrix printer): Dot matrix printers are outdated, noisy, and do not support full-color printing.
Why Not D (Laser printer): Laser printers have lower running costs but a higher initial purchase price, especially for color models.
CompTIA A+ Exam Reference: Core 2 (220-1102), Section 4.6, printer types.