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| Section | Weight | Objectives |
|---|---|---|
| Topic 1: Virtualization and Cloud Computing | 11% | - Cloud computing concepts
|
| Topic 2: Mobile Devices | 15% | - Mobile device hardware and components
|
| Topic 3: Hardware | 25% | - PC hardware components
|
| Topic 4: Networking | 20% | - Network fundamentals
|
| Topic 5: Hardware and Network Troubleshooting | 29% | - Troubleshooting methodology
|
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問題 #57
Which of the following would prevent a virtual machine from communicating with any endpoints on a network or the internet?
答案：C
解題說明：
Comprehensive and Detailed In-Depth Explanation:
Asandboxis an isolated virtual environment used totest or run applications securelywithout risk to the host or network. It prevents the VM from communicating with external systems, making it ideal for testing malware or suspicious software.
* Option A (VDI):Virtual Desktop Infrastructure allows network communication; it does not restrict it.
* Option B (Private cloud):Refers to a cloud deployment model, not a communication barrier.
* Option D (Type 1 hypervisor):Runs VMs directly on hardware and doesnotinherently block communication.
CompTIA A+ Core 1 Exam Objective Reference:
* Objective 4.1: Compare and contrast cloud computing concepts.
問題 #58
A company rolls out a mandatory OS update to all PCs. A legacy application that one department uses does not function on the new OS and is end-of-life. Which of the following should a technician suggest to solve the issue with minimal data loss, expense, and disruption to the users?
答案：C
解題說明：
The issue is application compatibility after an OS update. The Quentin Docter study guide explains that application virtualization is commonly used for legacy software or a legacy OS because older applications often run only on older operating systems. It further explains that virtualization allows users to run multiple environments without buying extra hardware, which directly matches the requirement for minimal cost and disruption. A Type 2 hypervisor runs on top of an existing host operating system, making it suitable for a department workstation scenario because users can keep the new supported OS while accessing the legacy application in a virtualized environment. A bare-metal Type 1 hypervisor is usually server-side and would be more disruptive and expensive. Migrating to a new product and importing data may be the long-term answer, but it introduces higher cost, retraining, and possible data loss. A private cloud does not solve OS compatibility by itself.
問題 #59
A user reports slow performance when saving documents locally on a computer. A technician reviews the logs and notices entries showing S.M.A.R.T. errors. Which of the following actions should the technician take next?
答案：B
解題說明：
S.M.A.R.T. errors are a clear sign the drive is failing. Replacing the hard drive prevents data loss and restores reliable performance.
問題 #60
A technician is troubleshooting a desktop PC that is plugged into a UPS. The PC loses the system date/time after every power outage. Which of the following should the technician do to resolve the issue? (Select two).
答案：B,C
解題說明：
Comprehensive and Detailed Explanation From Exact Extract:
The system date/time is maintained by the CMOS battery when the PC is powered off. If this battery fails, time resets will occur. Additionally, since the system is connected to a UPS, ensuring the UPS is functioning correctly (i.e., the backup power source) is essential.
#Reference: "CompTIA A+ Complete Study Guide" by Quentin Docter - Chapter 1, page 40.
問題 #61
A user experiences intermittent Wi-Fi performance issues only in their office. Nearby RJ45 ports do not provide connectivity, but the user connects fine in other campus areas. AP coverage is weak in the user's office. What is the most likely cause?
答案：D
解題說明：
The scenario states that the Wi-Fi signal is weak in the user's office, but the laptop works perfectly in other locations. CompTIA A+ stresses that weak signal strength is caused by distance from the access point, physical obstructions, or poor AP placement. Since other users are not affected and the laptop works elsewhere, the issue is localized signal weakness.
Disabled RJ45 ports (Option C) matter only for wired connections, and the user relies on Wi-Fi. Malware (Option D) would affect performance everywhere, not just in one office. Brute-force attacks (Option B) would trigger security logs and affect multiple users.
Weak signal caused by AP distance or line-of-sight issues is the cause, as detailed in A+ wireless troubleshooting procedures related to low RSSI, interference, and AP placement.
問題 #62
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