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| Section | Weight | Objectives |
|---|---|---|
| Topic 1: Networking | 23% | - Wireless networking standards & security - Network devices & configuration - Network types, topologies & cables - Network connectivity & troubleshooting - IP addressing & protocols |
| Topic 2: Mobile Devices | 13% | - Mobile device security & troubleshooting - Hardware components & replacement - Synchronization & data management - Network connectivity & configuration |
| Topic 3: Hardware and Network Troubleshooting | 28% | - Network issues & resolution - Hardware problems & solutions - Component failure diagnosis & repair - Troubleshooting methodology |
| Topic 4: Virtualization and Cloud Computing | 11% | - Cloud infrastructure & resource management - Virtual & cloud security - Cloud service models & deployment types - Virtualization concepts & hypervisors |
| Topic 5: Hardware | 25% | - Custom PC builds & specialized hardware - PC components, installation & configuration - Hardware maintenance & upgrades - Peripherals & storage devices - Power supply & cooling systems |
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NEW QUESTION # 198
Which of the following is the best option to maintain a stable, tethered connection between a cell phone and a laptop?
Answer: A
Explanation:
The correct answer is B. USB.
In the CompTIA A+ Core 1 (220-1201) objectives under mobile devices and connectivity methods, tethering refers to sharing a mobile device's internet connection with another device such as a laptop. There are several tethering methods, including USB tethering, Bluetooth tethering, and Wi-Fi hotspot.
USB tethering is considered the most stable and reliable (tethered) connection because:
It uses a physical cable connection, eliminating wireless interference.
It provides consistent bandwidth and low latency.
It also charges the phone while connected, which is an added benefit.
It is less prone to disconnections compared to wireless methods.
Why the other options are incorrect:
A). Bluetooth
Bluetooth tethering is slower and less stable due to limited bandwidth and susceptibility to interference. It is not ideal for high-performance or stable connections.
C). Hotspot
A mobile hotspot uses Wi-Fi, which is wireless, not tethered. While convenient, it is less stable than a wired USB connection and can be affected by interference and signal range.
D). NFC
NFC (Near Field Communication) is used for very short-range communication like payments or quick pairing. It is not used for maintaining a continuous network connection.
Final answer: B. USB
NEW QUESTION # 199
An employee is on a business trip and needs to upload daily conferences and meetings to the company's intranet. The uploading process is successful but was faster in the past. Which of the following is the most likely reason for the slowdown?
Answer: D
Explanation:
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.
NEW QUESTION # 200
A technician needs to update a web server's IPv4 address in a DNS server. Which of the following records should the technician update?
Answer: B
Explanation:
An A record maps a domain name to an IPv4 address in a DNS server.
NEW QUESTION # 201
Which of the following storage communication interfaces typically offers the best read/write speeds?
Answer: D
Explanation:
NVMe typically provides the best read/write performance because it communicates over the high-speed PCI Express bus and was designed specifically for flash-based storage. Unlike SATA, which was originally developed for mechanical hard drives and commonly has a 6Gbps interface limit, NVMe can use multiple PCIe lanes and process many simultaneous command queues. This results in substantially higher throughput and lower latency. SAS provides strong performance, reliability, and enterprise features, but it is generally slower than modern PCIe-based NVMe storage. Traditional SCSI is an older interface family and does not provide the performance available from current NVMe devices. Actual speed depends on the NVMe version, number of PCIe lanes, drive controller, and NAND technology, but among the listed interfaces, NVMe normally delivers the fastest read/write operations for modern solid-state storage.
NEW QUESTION # 202
A customer's laptop is no longer charging when plugged in to the docking station. A technician observes that none of the devices plugged in to the dock appear to be functioning. The technician verifies that the dock has power, the laptop ports are not damaged, and the BIOS updates are current, but the issue persists. Which of the following should the technician do next?
Answer: C
Explanation:
When both charging and dock-connected peripherals fail at the same time, the problem is most likely with the dock itself or its internal controller circuitry rather than the laptop's operating system or a single peripheral device. The technician has already verified key prerequisites: the dock has power, the laptop ports show no physical damage, and system firmware (BIOS/UEFI) is current. Those checks reduce the likelihood of a simple firmware incompatibility or a damaged laptop connector.
In CompTIA A+ troubleshooting methodology, the next step is to substitute with a known-good component to isolate the fault quickly. Replacing (or testing with) another dock confirms whether the original docking station has failed. If the replacement dock restores charging and peripherals immediately, the root cause is confirmed without unnecessary invasive actions.
Switching the power supply could be a valid step if power was questionable, but the prompt states the dock already has power and still provides no function-pointing to dock failure. Reinstalling the OS is excessive and unlikely because charging through a dock is not primarily OS-dependent. Rolling back BIOS updates is also not indicated because the issue persists despite current firmware and there is no evidence the BIOS update caused it.
NEW QUESTION # 203
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