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| Section | Weight | Objectives |
|---|---|---|
| Hardware | 27% | - PC hardware and peripherals - BIOS/UEFI and firmware - RAM types and installation - Power supplies and connectors - CPU and expansion cards - Peripheral devices and connections - Storage devices (HDD, SSD, NVMe) |
| Networking | 20% | - Network troubleshooting - Network protocols and services - Network configurations - Network connectivity - IP addressing and subnetting basics - Network hardware and devices |
| Virtualization and Cloud Computing | 12% | - Virtual machine concepts - Virtualization fundamentals - Cloud connectivity and configuration - Cloud concepts and models (IaaS, PaaS, SaaS) - Cloud and virtualization troubleshooting |
| Hardware and Network Troubleshooting | 26% | - Network troubleshooting - Hardware troubleshooting - Printers and multifunction devices - Common symptoms and root causes - Troubleshooting methodology - Mobile device troubleshooting |
| Mobile Devices | 15% | - Mobile device management (MDM) - Cellular connectivity and settings - Mobile device configuration - Mobile device synchronization - Mobile device troubleshooting |
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NEW QUESTION # 288
A technician is configuring an organization's managed switch to prevent other users on the same switch from accessing the accounting department. Which of the following should the technician configure to accomplish this task?
Answer: C
Explanation:
VLANs are used to segment a physical network into multiple logical networks. By assigning the accounting department to a separate VLAN, users on other VLANs cannot access its network traffic without routing, thereby isolating sensitive departments while using the same physical switch.
VLANs improve security, reduce broadcast traffic, and allow network administrators to enforce access controls at the layer 2 level.
NEW QUESTION # 289
Which of the following is used to install a network device when electrical outlets are unavailable?
Answer: B
Explanation:
Power over Ethernet (PoE) is specifically designed to power network devices without requiring a separate electrical outlet. According to CompTIA Core 1 (220-1201) networking hardware objectives, PoE allows both data and electrical power to be delivered over a single Ethernet cable from a PoE- capable switch or injector to the connected device.
PoE is commonly used for devices such as wireless access points, IP cameras, VoIP phones, and access control systems, especially in locations where installing electrical outlets is difficult, expensive, or impractical. This makes PoE an ideal solution for flexible and scalable network deployments.
WWAN (Wireless Wide Area Network) provides cellular-based network connectivity but does not supply power to devices. An ONT (Optical Network Terminal) converts fiber signals to Ethernet and requires its own power source. NFC (Near Field Communication) is a short-range wireless technology used for authentication and data exchange, not for powering network devices.
CompTIA highlights PoE as a key networking technology that simplifies installations by reducing cabling requirements and eliminating the need for local power outlets.
NEW QUESTION # 290
Which of the following is an advantage of using the 2.4 GHz wireless frequency?
Answer: A
Explanation:
Comprehensive and Detailed Explanation From Exact Extract (Aligned With CompTIA A+ 220-1201 Study Guide) The CompTIA A+ wireless networking section describes key differences between 2.4 GHz and 5 GHz Wi-Fi frequencies.
2.4 GHz provides:
Better range
Better wall penetration
Better performance through structures and obstacles
This means less interference from physical structures, which is the primary advantage of 2.4 GHz over 5 GHz.
This maps directly to:
โ C . Minimized structural interference
Why the other options are incorrect
A . Communication without external power
Not related to Wi-Fi frequencies.
B . Security for close-proximity connections
No Wi-Fi frequency provides inherent security advantages.
D . Increased channel options
5 GHz has more channels, not 2.4 GHz.
NEW QUESTION # 291
Which of the following requires pairing during the initial use of a new mobile accessory?
Answer: B
Explanation:
Bluetooth accessories require an initial pairing process so the devices can securely recognize and communicate with each other before regular use.
NEW QUESTION # 292
Which of the following controls network traffic based on MAC addresses?
Answer: B
Explanation:
A switch is the network device that controls and forwards traffic primarily based on MAC addresses. In CompTIA A+ Core 1 networking, a switch operates at Layer 2 (Data Link) of the OSI model. When devices communicate on an Ethernet LAN, the switch learns the source MAC addresses from incoming frames and stores them in a MAC address table (CAM table) along with the port where each device is connected. After learning, the switch uses the destination MAC address in each Ethernet frame to decide which specific port should receive the traffic, which reduces unnecessary transmissions and improves overall network efficiency compared to a hub. If the destination MAC is unknown, the switch will flood the frame out other ports (except the one it came in on) until it learns the correct location.
A router makes forwarding decisions using IP addresses at Layer 3, not MAC-based switching decisions. A PoE injector only supplies electrical power over Ethernet and does not manage traffic forwarding. A firewall filters traffic based on rules (IP, ports, protocols, and sometimes application/state), but the classic CompTIA A+ answer for MAC-based traffic control on a LAN is a switch.
NEW QUESTION # 293
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