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| Section | Weight | Objectives |
|---|---|---|
| Topic 1: Mobile Devices | 15% | - Mobile device synchronization - Mobile device management (MDM) - Mobile device troubleshooting - Mobile device configuration - Cellular connectivity and settings |
| Topic 2: Hardware and Network Troubleshooting | 26% | - Printers and multifunction devices - Hardware troubleshooting - Troubleshooting methodology - Mobile device troubleshooting - Network troubleshooting - Common symptoms and root causes |
| Topic 3: Virtualization and Cloud Computing | 12% | - Cloud connectivity and configuration - Virtual machine concepts - Cloud concepts and models (IaaS, PaaS, SaaS) - Cloud and virtualization troubleshooting - Virtualization fundamentals |
| Topic 4: Hardware | 27% | - Peripheral devices and connections - BIOS/UEFI and firmware - RAM types and installation - Power supplies and connectors - CPU and expansion cards - PC hardware and peripherals - Storage devices (HDD, SSD, NVMe) |
| Topic 5: Networking | 20% | - Network configurations - Network hardware and devices - Network protocols and services - Network troubleshooting - Network connectivity - IP addressing and subnetting basics |
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NEW QUESTION # 471
A technician is troubleshooting internet connectivity issues after a firewall update. Users report that they can access local network resources, such as printers and shares, but cannot access the internet. Which of the following settings is most likely causing the issue?
Answer: A
Explanation:
If users canaccess local network resourcesbut not theinternet, the most likely culprit is amisconfigured or missing default gateway. The default gateway routes traffic from the local network to external networks (i.e., the internet). If it's not properly set or was altered during a firewall update, internet traffic won't be forwarded correctly.
Option A:Static IPs could cause conflict, but wouldn't affect only external access if configured correctly.
Option C:An incorrect subnet mask could isolate devices, but local communication would likely be impacted too.
Option D:VLANs segment networks; while misconfigured VLANs could cause access issues, they'd more likely isolate local traffic as well.
CompTIA A+ Core 1 Exam Objective Reference:
Objective 2.6: Given a scenario, configure and troubleshoot network connectivity.
NEW QUESTION # 472
Which of the following RAM characteristics allows for recovery from data faults in memory modules?
Answer: D
Explanation:
The correct answer is C. ECC (Error-Correcting Code).
In the CompTIA A+ Core 1 (220-1201) hardware objectives, RAM types and features include technologies designed to improve reliability and data integrity.
ECC memory is specifically designed to detect and correct data errors (faults) in memory automatically. It uses additional bits to store error-checking information, allowing the system to:
Detect single-bit and some multi-bit errors
Automatically correct errors without system interruption
Improve system stability, especially in servers and critical systems
This makes ECC the best choice for recovering from data faults.
Why the other options are incorrect:
A). Capacity
Capacity refers to how much data the RAM can hold (e.g., 8GB, 16GB). It has nothing to do with error detection or correction.
B). Speed
Speed (measured in MHz or MT/s) affects performance but does not provide any fault recovery capability.
D). DDR
DDR (Double Data Rate) refers to the generation/type of RAM (e.g., DDR3, DDR4, DDR5). It improves performance but does not handle errors.
E). Parity
Parity memory can detect errors but cannot correct them. Since the question specifically asks for recovery from faults, ECC is the correct answer because it both detects and corrects errors.
Final answer: C. ECC
NEW QUESTION # 473
A group of friends is gathering in a room to play video games. One of the friends has a game server. Which of the following network types should the group use so they can all connect to the same server and the internet?
Answer: D
Explanation:
The appropriate network type for this scenario is a Local Area Network (LAN), which is designed for small, localized networks, such as within a single building or room. LANs are ideal for gaming because they provide high-speed, low-latency connections.
Option A (SAN): Incorrect. A Storage Area Network is used for data storage, not for gaming or general networking.
Option B (MAN): Incorrect. A Metropolitan Area Network covers a city or campus, far exceeding the scope needed for a gaming setup in a single room.
Option D (PAN): Incorrect. A Personal Area Network is designed for a single user, such as Bluetooth devices, and would not support multiple devices connecting to a game server.
Reference:
CompTIA A+ Core 1 Objectives: 2.7 (Compare and contrast network types and features)
NEW QUESTION # 474
Which of the following is used to verify if a NIC port can send and receive data?
Answer: C
Explanation:
* The correct answer is A. Loopback plug.
According to CompTIA A+ Core 1 220-1201 objectives under Networking:
* A loopback plug is used to test a network interface card (NIC) port by sending a signal out of the port and back into the same port, verifying that the NIC can send and receive data properly.
* This is a common diagnostic tool when troubleshooting network connectivity issues on individual devices.
Why the other options are incorrect:
* B. Toner probe: Used for tracing and locating cables, not for testing NIC ports.
* C. Cable tester: Checks the integrity of network cables but does not verify NIC send/receive functionality.
* D. Network tap: Passively monitors network traffic but does not test the NIC port itself.
References:
CompTIA A+ Core 1 (220-1201) Exam Objectives - Networking: "Given a scenario, use tools such as loopback plugs and cable testers to verify network connectivity." Mike Meyers' CompTIA A+ Certification Guide, 13th Edition, Chapter on Network Troubleshooting Tools.
NEW QUESTION # 475
Which internet connection type will most likely experience interference from rain?
Answer: D
Explanation:
CompTIA A+ identifies satellite internet as the connection type most susceptible to weather-related interference, particularly rain, snow, and heavy cloud cover. This phenomenon is known as rain fade. Satellite connections rely on high-frequency microwave signals transmitted between a dish antenna at the customer site and an orbiting satellite. Moisture in the atmosphere absorbs and scatters these signals, causing latency spikes, reduced bandwidth, or complete signal loss during storms.
Fiber (A) uses light signals through glass fiber and is immune to electromagnetic and weather interference.
Cable internet (B) uses shielded coaxial lines buried or run overhead, but rain does not affect signal quality in normal conditions. DSL (D) uses telephone lines, which may degrade with physical line issues, but not directly due to rain in the same way satellite is affected.
Thus, satellite internet is most likely to experience signal degradation during rain conditions.
NEW QUESTION # 476
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