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| Section | Weight | Objectives |
|---|---|---|
| Hardware and Network Troubleshooting | 29% | - Troubleshooting methodology
|
| Mobile Devices | 15% | - Mobile device hardware and components
|
| Virtualization and Cloud Computing | 11% | - Cloud computing concepts
|
| Hardware | 25% | - PC hardware components
|
| Networking | 20% | - Network fundamentals
|
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NEW QUESTION # 64
A computer training institute needs to implement multiple VLANs that must:
- Connect to each other with minimum hardware
- Communicate traffic at wire speed
Which of the following is the most suitable?
Answer: C
Explanation:
A Layer 3 switch can route traffic between VLANs internally using hardware-based switching, allowing inter-VLAN communication at wire speed while minimizing additional hardware compared to using external routers.
NEW QUESTION # 65
Which of the following RAM characteristics allows for recovery from data faults in memory modules?
Answer: A
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 # 66
Which of the following is a benefit of application virtualization?
Answer: C
Explanation:
The correct answer is A. Better compatibility.
According to CompTIA A+ Core 1 220-1201 objectives under Software Troubleshooting and Virtualization:
* Application virtualization allows applications to run in an isolated environment on a client device without being installed directly on the operating system.
* This improves compatibility, as applications can operate regardless of OS differences, avoiding conflicts with other installed applications or system configurations.
Why the other options are incorrect:
* B. Reduced network latency: Application virtualization does not inherently reduce network latency; network performance depends on connectivity.
* C. Secure telnet access: Telnet is unrelated to application virtualization.
* D. Metered utilization: Metering refers to cloud service usage or billing, not a benefit of application virtualization itself.
References:
CompTIA A+ Core 1 (220-1201) Exam Objectives - Software Troubleshooting: "Given a scenario, troubleshoot and apply virtualization concepts including application virtualization for compatibility and isolation." Mike Meyers' CompTIA A+ Certification Guide, 13th Edition, Chapter on Virtualization and Application Deployment.
NEW QUESTION # 67
A help desk technician inspects a laptop keyboard because a single key has stopped working. The technician checks the keyboard for debris. Which of the following actions should the technician do next to troubleshoot the issue cost-effectively?
Answer: D
Explanation:
If only one key is not functioning and debris has been checked, replacing the individual keycap is the most cost-effective next step. It's a simple, low-cost option before considering more extensive repairs like replacing the entire keyboard.
NEW QUESTION # 68
A small company recently added VoIP through its ISP. Users report intermittent call quality issues during peak hours. Which of the following steps should the IT administrator take to solve the issue?
Answer: D
Explanation:
Separating VoIP traffic into its own VLAN allows the network to prioritize voice traffic over data traffic, reducing congestion-related latency, jitter, and packet loss that commonly cause call quality issues during peak usage hours.
NEW QUESTION # 69
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