CompTIA 220-1101 CompTIA A+ Certification Exam Core 1 Exam Practice Test

Answer : C

C . Installing redundant PSUs (Power Supply Units):

Redundant PSUs provide fault tolerance by ensuring that if one power supply fails, another will take over seamlessly.

This is a cost-effective way to increase uptime while waiting for the UPSs to arrive.

Incorrect Options:

A . Purchasing backup generators: Generators are costly and are typically used for long-term outages, not as an immediate or cost-effective solution.

B . Increasing input voltage: This is not a practical solution to hardware failures or power issues.

D . Activating a hot site: A hot site is an expensive, fully operational backup facility that would not be a cost-effective solution for this scenario.

Key Takeaway: Installing redundant PSUs is a cost-effective way to balance uptime requirements in case of power or hardware failure. Reference: CompTIA A+ Core 1 Exam Objectives (220-1101), Domain 5.3 -- Power-related troubleshooting.

Answer : B

B . PAN (Personal Area Network):

A PAN is a network established between devices in close proximity, such as between a smartphone and a Bluetooth headset.

Bluetooth technology is specifically designed for short-range communication, making it a type of PAN.

Incorrect Options:

A . MAN (Metropolitan Area Network): A MAN covers a city or metropolitan area and is not relevant to Bluetooth connections.

C . SAN (Storage Area Network): A SAN is used for large-scale data storage, unrelated to Bluetooth connections.

D . WAN (Wide Area Network): A WAN spans large geographical areas (e.g., the internet) and is not relevant to this scenario.

Key Takeaway: Bluetooth connections, such as those between a headset and a device, create a Personal Area Network (PAN). Reference: CompTIA A+ Core 1 Exam Objectives (220-1101), Domain 2.1 -- Network types and their features.

Answer : C

C . Initiate the system restore:

If the technician is confident that rolling back the system to a previous restore point will resolve the issue, the next logical step is to initiate the System Restore process.

System Restore allows the system to revert to a state before the OS update, which can eliminate the performance issues caused by the update.

Incorrect Options:

A . Document the findings: Documentation is important but should occur after resolving the issue.

B . Investigate any recent infrastructure changes: This is unnecessary if the issue is already attributed to the OS update.

D . Verify full system functionality: This step should be performed after the System Restore is completed.

Key Takeaway: When confident that rolling back will resolve the issue, the technician should proceed with initiating a System Restore to revert the OS. Reference: CompTIA A+ Core 1 Exam Objectives (220-1101), Domain 5.4 -- Troubleshooting OS problems.

Answer : D

D . Crimper:

A crimper is used to terminate an RJ45 cable properly by attaching the connector to the twisted-pair wires.

If the termination is not done correctly, the connection will be intermittent or fail entirely.

Incorrect Options:

A . Toner probe: Used to locate cables or trace their path, not for terminating RJ45 connectors.

B . Cable tester: Useful for testing connectivity but does not fix termination issues.

C . Punchdown: Used to connect wires to a patch panel or keystone jack, not for RJ45 connectors.

Key Takeaway: A crimper is the proper tool for fixing an improperly terminated RJ45 connection. Reference: CompTIA A+ Core 1 Exam Objectives (220-1101), Domain 2.8 -- Using appropriate tools for network troubleshooting.

Answer : A

A . Check the product manual for the procedure:

When hardware is not easily accessible, always consult the product manual for proper disassembly procedures. Forcing the cover can damage the laptop or void the warranty.

Product manuals often provide step-by-step instructions for safely accessing internal components.

Incorrect Options:

B . Use a pry tool to force the cover open: Forcing the cover can cause physical damage to the device.

C . Insert the wireless card into the M.2 slot: This step cannot be performed until the cover is properly removed.

D . Try to move the cover by sliding it in all directions: Randomly sliding the cover can cause damage if the correct removal method is not followed.

Key Takeaway: Always refer to the product manual to ensure safe and proper disassembly of laptop components. Reference: CompTIA A+ Core 1 Exam Objectives (220-1101), Domain 4.1 -- Best practices for laptop hardware installation.

Answer : B

B . USB-C:

USB-C is a versatile connector that supports charging, high-speed data transfer, and the ability to send audio and video signals (e.g., DisplayPort over USB-C).

It is used by most modern mobile devices and laptops because of its fast transfer speeds and power delivery capabilities.

Incorrect Options:

A . Lightning: Lightning is proprietary to Apple devices and does not natively support video output.

C . MicroUSB: MicroUSB is outdated and does not support video output.

D . MiniUSB: MiniUSB is an older standard and does not support modern features like video output or fast charging.

Key Takeaway: USB-C is the most versatile connector for charging and transferring data, audio, and video. Reference: CompTIA A+ Core 1 Exam Objectives (220-1101), Domain 3.1 -- Cable types and features.

Answer : D, D