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| Section | Weight | Objectives |
|---|---|---|
| Networking | 23% | - Network connectivity & troubleshooting - Network types, topologies & cables - Wireless networking standards & security - IP addressing & protocols - Network devices & configuration |
| Mobile Devices | 13% | - Hardware components & replacement - Mobile device security & troubleshooting - Network connectivity & configuration - Synchronization & data management |
| Hardware and Network Troubleshooting | 28% | - Network issues & resolution - Component failure diagnosis & repair - Hardware problems & solutions - Troubleshooting methodology |
| Hardware | 25% | - Custom PC builds & specialized hardware - Hardware maintenance & upgrades - Power supply & cooling systems - Peripherals & storage devices - PC components, installation & configuration |
| Virtualization and Cloud Computing | 11% | - Virtualization concepts & hypervisors - Virtual & cloud security - Cloud infrastructure & resource management - Cloud service models & deployment types |
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NEW QUESTION # 660
Which of the following describes the difference between routers and switches?
Answer: B
Explanation:
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.
References:
CompTIA A+ Core 1 (220-1201) Exam Objectives - Networking: "Given a scenario, install and configure network devices including switches and routers and describe their primary functions." Mike Meyers' CompTIA A+ Certification Guide, 13th Edition, Chapter on Networking Devices.
NEW QUESTION # 661
Which of the following internet connection types is primarily used for high-speed internet access in rural areas where traditional broadband services are unavailable?
Answer: A
Explanation:
Satellite internet is commonly used in rural or remote locations where wired broadband options such as cable and fiber are not available and where DSL service may be limited by distance from the provider's equipment.
CompTIA A+ Core 1 emphasizes understanding internet connection types and where each is typically deployed. Satellite works by using a dish at the customer site to communicate with a satellite, which then relays traffic to a ground station connected to the internet backbone. Because it does not depend on local cable plant, telephone central office proximity, or neighborhood fiber buildouts, it can be deployed in areas with minimal infrastructure.
Fiber (A) provides very high speeds and low latency but requires extensive physical infrastructure that is often lacking in rural regions. Cable (D) also requires a local cable network buildout and is usually concentrated in more populated areas. DSL (C) uses existing telephone lines, but performance and availability depend heavily on distance from the DSL provider's equipment, making it unreliable or unavailable in sparsely populated regions. While satellite often involves higher latency and can be affected by weather, it remains a primary option when traditional broadband services are not present.
NEW QUESTION # 662
Which of the following does a red light indicate on a storage bay?
Answer: A
Explanation:
A red status light on a server or storage-array drive bay commonly indicates that the installed hard drive has failed or has entered a fault state. Enterprise storage bays use indicator lights to show drive activity, identification, rebuilding, predictive failure, or complete failure. Although the exact colour pattern can vary by manufacturer, a persistent red or amber fault indicator normally requires the technician to check the storage controller and replace the affected drive according to the system's hot-swap and RAID procedures. A failing power supply would normally activate an indicator on the power-supply module rather than an individual storage bay. A drive missing from the operating system could result from a controller, cable, configuration, or drive problem, but the red bay light more directly identifies a physical drive fault. Slow read/write performance alone does not normally activate a solid failure indicator.
NEW QUESTION # 663
Users in a 200-person call center report that phone calls experience severe performance degradation on busy days. The technician confirms:
* Upload and download speeds are 50Mbps during a speed test.
* VoIP call prioritization settings are properly configured for the VLAN that the call center uses.
Which of the following is most likely the cause of this issue?
Answer: D
Explanation:
Voice over IP (VoIP) traffic is highly sensitive to latency, jitter, and packet loss, especially in large environments such as a 200-person call center. Although the technician confirms that VoIP prioritization (QoS) is configured correctly and speed tests show 50 Mbps upload and download speeds, overall available bandwidth can still be insufficient during peak usage.
Speed tests measure raw throughput at a point in time and do not reflect real-world congestion caused by hundreds of simultaneous calls, application usage, and data transfers. On busy days, the cumulative bandwidth demand likely exceeds the available capacity, leading to degraded call quality despite correct VLAN and QoS settings.
If QoS were misconfigured or the VLAN did not allow voice traffic, call issues would be consistent at all times, not only during peak periods. Flapping switchports would cause intermittent connectivity drops rather than predictable performance degradation correlated with high usage.
CompTIA highlights that bandwidth limitations are a common root cause of VoIP performance problems in high-density environments, even when prioritization is properly implemented.
References:
CompTIA A+ Core 1 (220-1201) Official Study Guide - Networking Performance, QoS, and VoIP
NEW QUESTION # 664
A technician installs an external camera on a user's laptop. When loading meeting software, the video preview shows a blank screen. What should the technician do next?
Answer: B
Explanation:
Most meeting or conferencing applications default to the built-in laptop camera unless manually changed. When an external camera is connected, the software may continue to use the default device, resulting in a blank preview, especially if the internal camera is disabled, covered, or malfunctioning. CompTIA A+ stresses verifying correct device selection when peripherals are installed.
Selecting the correct camera source is a quick, non-invasive test that resolves the issue in the majority of cases. The technician should open the application's video settings and choose the external webcam from the camera dropdown menu.
Replacing the camera (B) is premature without confirming configuration. Updating software (C) is beneficial but will not resolve a simple input-selection error. Checking the cable (D) is a valid step if the preview still fails after selecting the device.
Thus, the correct next step is to select the proper camera source.
NEW QUESTION # 665
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