220-1201 Exam Dumps - CompTIA A+ Questions and Answers

A printer with text boxes AI-generated content may be incorrect.

In CompTIA A+ Core 1 (220-1201) networking and troubleshooting, a common cause of “can’t reach internal resources” while docked is that the laptop is still using the wireless interface (or has a higher interface priority for Wi-Fi) instead of the docking station’s wired Ethernet connection. If the Wi-Fi network is a guest/isolated VLAN, uses different routing, or has stricter access controls, the user may be blocked from reaching department file servers even though an Ethernet cable is physically connected to the dock. Disabling Wi-Fi is a fast, low-risk step that forces the system to use the wired NIC path through the docking station, which typically provides the correct corporate network access, DHCP scope, and routing to internal servers.

Restarting the computer might help in some cases, but it’s less targeted and not the “best next step” when the likely issue is interface selection. Replacing the Ethernet cable is appropriate if link lights are off or the wired connection is clearly down, but the scenario highlights that the dock has a hardwired connection—suggesting the physical layer may be fine. Dock firmware updates are not a first-line fix for basic connectivity/access symptoms.

The correct answer is B. Moving to a supported system under a Type 2 hypervisor .

In the CompTIA A+ Core 1 (220-1201) objectives, virtualization is a key concept for maintaining compatibility with legacy systems. A Type 2 hypervisor (hosted hypervisor) runs on top of an existing operating system and allows users to run a virtual machine (VM) with an older OS.

This solution is ideal because:

It allows the legacy application to run in its required OS environment .

It avoids replacing the application (which could cause data loss or compatibility issues ).

It is cost-effective , as it uses existing hardware.

It minimizes user disruption , since users can continue using the application within a VM.

Why the other options are incorrect:

A. Setting up a bare-metal hypervisor

A Type 1 (bare-metal) hypervisor is more complex, costly, and disruptive. It typically requires dedicating hardware and is not ideal for a single department use case.

C. Upgrading to an alternative product and importing the data

Although this may be a long-term solution, it involves higher cost, potential data loss, retraining, and disruption .

D. Uploading the database to a private cloud

This does not solve the compatibility issue of the legacy application with the new OS.

Final Answer: B. Moving to a supported system under a Type 2 hypervisor

The correct answer is D. WLAN (Wireless Local Area Network) .

According to CompTIA A+ Core 1 220-1201 objectives under Networking:

A WLAN is a wireless network that covers a limited area such as an office, building, or campus.

Using a heat map helps administrators determine optimal placement of access points, identify areas of weak signal, and plan coverage for employees’ devices.

Why the other options are incorrect:

A. SAN (Storage Area Network): Connects storage devices over a network; not used for wireless coverage.

B. PAN (Personal Area Network): Covers a very small area, such as a single person’s devices (Bluetooth, USB, etc.), not a whole office.

C. MAN (Metropolitan Area Network): Covers a city or large geographic area; too large for a floor plan.

A router is a network device that forwards data between different networks by examining packet headers, specifically the IP address information contained in Layer 3 (Network Layer) of the OSI model. According to the CompTIA A+ Core 1 (220-1201) networking objectives, routers use routing tables and packet header analysis to determine the best path for data to travel from a source network to a destination network. When a packet arrives at a router interface, the router reads the destination IP address in the packet header, compares it against its routing table, and then forwards the packet to the appropriate next hop or network interface. This function allows routers to connect multiple networks such as LANs, WANs, and the internet.

The other options do not perform this function. A hub operates at Layer 1 (Physical Layer) and simply broadcasts incoming signals to all connected ports without inspecting any packet information. A repeater also operates at the physical layer and is used only to regenerate or amplify signals to extend network distance. An unmanaged switch operates mainly at Layer 2 (Data Link Layer) and forwards frames based on MAC addresses, not IP packet headers. Because only routers analyze packet headers and forward traffic between different networks, Router is the correct answer.

The degraded status on Server 2 indicates a RAID-5 issue, typically due to a failed or failing drive. In RAID-5 configurations, when one drive fails, the system can still operate but with reduced performance as parity data is used to rebuild missing data on-the-fly.

Recommended Replacement Drive:

To minimize performance degradation, the replacement drive should be:

SAS HDD with the same specifications (64KB stripe size, no read-ahead, and write-back policy).

Matching the configuration exactly ensures seamless integration and optimizes recovery speed in the RAID-5 array.

In RAID-5, degraded performance is expected when one drive fails, as parity data needs to rebuild missing information during each read/write process. Replacing the failed drive restores the RAID array to optimal status, reducing the load on existing drives and returning the system to normal read/write performance. The write-back policy and disabled disk cache settings are designed to reduce latency and increase efficiency, essential for handling real-time applications.

A user reports poor performance on the

application server.

INSTRUCTIONS

Click on Server 1 and Server 2 and review

the information presented in each chart to

determine which drives need to be replaced.

Select the appropriate replacement drive

that should be used, for the least

performance degradation to the server.

A computer server with many black and silver parts AI-generated content may be incorrect.A computer server with many black boxes Description automatically generated with medium confidence

A screen shot of a computer AI-generated content may be incorrect.A screen shot of a computer Description automatically generated

A computer screen shot of a computer AI-generated content may be incorrect.A computer screen shot of a computer Description automatically generated

A computer screen shot of a computer AI-generated content may be incorrect.A computer screen shot of a computer Description automatically generated

A computer screen shot of a computer AI-generated content may be incorrect.A computer screen shot of a computer Description automatically generated

A screenshot of a computer AI-generated content may be incorrect.A screenshot of a computer Description automatically generated

A screenshot of a computer AI-generated content may be incorrect.A screenshot of a computer Description automatically generated

The correct answer is D. Data is being throttled .

Data throttling refers to the intentional slowing down of internet speeds by a mobile carrier after a user reaches a certain data usage limit or during network congestion. In this scenario, the employee can still successfully upload files, but the speed has decreased compared to before—this is a classic symptom of throttling.

Why the other options are incorrect:

A. Wireless is turned off

If wireless were turned off, the employee would not be able to upload anything at all. The question clearly states that uploads are still successful.

B. 5G is disabled

Disabling 5G could reduce speeds slightly if the device falls back to 4G/LTE, but it would not typically cause a significant or noticeable degradation unless compared under ideal conditions. It is not the most likely cause.

C. Roaming is turned on

Roaming allows connectivity outside the home network. While it may incur additional charges, it does not inherently cause significant speed reduction in most modern networks. It is less likely than throttling.

Exam Tip (Core 1 220-1201):

Slow but working connection → Think throttling or congestion

No connection → Think disabled wireless or network issues

Final Answer: D. Data is being throttled

The correct answer is B. Replacing the fans .

According to CompTIA A+ Core 1 220-1201 objectives under Hardware and Troubleshooting:

A computer that gradually slows down and then shuts down without warning is often experiencing overheating .

Overheating can occur when cooling fans fail or dust accumulates, preventing proper airflow. Replacing or cleaning fans restores cooling and prevents thermal shutdowns.

Why the other options are incorrect:

A. Upgrading the memory: Would improve system performance if there is insufficient RAM but does not prevent thermal shutdowns caused by overheating.

C. Adding drive space: Helps with storage capacity but does not affect CPU/GPU heat or thermal shutdown.

D. Swapping the power supply: Would address power delivery issues, but the scenario describes gradual slowdown before shutdown, which is characteristic of thermal issues rather than immediate power failure.

The correct answer is B. Switches connect devices within a network; routers connect networks.

According to the CompTIA A+ Core 1 220-1201 networking objectives:

Switches operate at the Data Link layer (Layer 2) and sometimes Layer 3, connecting multiple devices within the same local area network (LAN). They manage data traffic between devices by using MAC addresses to forward frames only to the intended recipient.

Routers operate at the Network layer (Layer 3) and connect different networks together, such as connecting a LAN to the internet. They use IP addresses to determine the best path for forwarding packets between networks.

Why the other options are incorrect:

A. Routers are programmable; switches are not programmable: Both devices can have programmable configurations in enterprise environments, so this is not a defining difference.

C. Switches are programmable; routers are not programmable: Same reasoning as above; not accurate.

D. Routers connect devices within a network; switches connect networks: This reverses the actual roles and is incorrect.

The correct answer is D. Injector .

Power over Ethernet (PoE) allows network cables to carry electrical power to devices such as wireless access points, IP cameras, and VoIP phones, eliminating the need for separate power supplies. According to the CompTIA A+ Core 1 220-1201 objectives under Networking, PoE can be implemented in the following ways:

PoE-enabled switches : Switches that can supply power directly over the Ethernet ports.

PoE injectors : Devices that add power to an existing Ethernet connection when the switch or router does not provide PoE.

Why the other options are incorrect:

A. Modem : A modem connects a network to the Internet but does not provide PoE functionality.

B. Range extender : Extends the range of a wireless network; does not supply power over Ethernet.

C. Media converter : Converts one type of network media to another (e.g., fiber to copper) but does not implement PoE.

Therefore, when a switch does not natively provide PoE, a PoE injector is the standard solution to add power to the Ethernet line.