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| Section | Weight | Objectives |
|---|---|---|
| Virtualization and Cloud Computing | 11% | - Virtual & cloud security - Virtualization concepts & hypervisors - Cloud infrastructure & resource management - Cloud service models & deployment types |
| Hardware | 25% | - Hardware maintenance & upgrades - Peripherals & storage devices - Custom PC builds & specialized hardware - Power supply & cooling systems - PC components, installation & configuration |
| Networking | 23% | - Network devices & configuration - IP addressing & protocols - Network types, topologies & cables - Wireless networking standards & security - Network connectivity & troubleshooting |
| Mobile Devices | 13% | - Mobile device security & troubleshooting - Network connectivity & configuration - Hardware components & replacement - Synchronization & data management |
| Hardware and Network Troubleshooting | 28% | - Troubleshooting methodology - Hardware problems & solutions - Component failure diagnosis & repair - Network issues & resolution |
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質問 # 463
Which cloud model provides hardware, storage, networking, and virtualization but requires customers to manage the OS and applications?
正解：C
解説：
Infrastructure as a Service (IaaS) provides the foundational computing components: virtualized hardware, storage, networking, and hypervisor resources. CompTIA A+ explains that customers using IaaS are responsible for installing and maintaining:
* The operating system
* Applications
* Patches, updates, and configurations
This model gives organizations maximum flexibility because they can build custom server environments without purchasing physical hardware.
In contrast:
* SaaS (A) provides fully managed applications-users do not manage OS or software.
* PaaS (B) provides a development platform and tools but does not allow OS management.
* XaaS (D) is a broad term meaning "anything as a service," not a specific model.
Thus, IaaS is the only model where OS-level control remains with the customer.
質問 # 464
A server that is crucial for daily operations is experiencing degraded performance. Upon investigation, a technician sees that one of the drives in a RAID 5 configuration shows a failure alert. The system must remain online during business hours, and the controller does not support hot swapping. Which of the following should the technician do to solve the issue?
正解：B
解説：
The correct answer is D. Replace the drive with a cold-swappable drive.
According to CompTIA A+ Core 1 220-1201 objectives under Storage and RAID:
* RAID 5 provides both data striping and parity for fault tolerance, but if the RAID controller does not support hot swapping, replacing a failed drive while the system is running is not possible.
* Cold-swappable drives are designed to be safely removed and replaced when the system is powered down, which allows maintenance without damaging the array or system.
Why the other options are incorrect:
* A. Update the RAID controller firmware to support hot swapping: Firmware updates may add hot swap functionality, but this is not guaranteed and may require a system reboot.
* B. Implement a software-based RAID solution: Software RAID requires a system reconfiguration and downtime; it does not immediately resolve the degraded RAID 5 array.
* C. Change the drive during off-peak hours: While feasible, this is essentially the same as using a cold- swappable drive but is less precise; using cold-swappable drives ensures safe replacement without downtime considerations.
References:
CompTIA A+ Core 1 (220-1201) Exam Objectives - Storage: "Given a scenario, troubleshoot RAID issues including failed drives, degraded arrays, and drive replacement procedures." Mike Meyers' CompTIA A+ Certification Guide, 13th Edition, Chapter on RAID and Storage Maintenance.
質問 # 465
A technician checks a RAID 5 array and sees a S.M.A.R.T. alert on one disk, but the array still shows healthy.
What should the technician do next?
正解：A
解説：
CompTIA A+ teaches that S.M.A.R.T. warnings indicate imminent drive failure. Even if the RAID controller reports the array as "healthy," a S.M.A.R.T. alert means the drive should be replaced immediately.
RAID 5 provides redundancy for one drive failure, but technicians should replace the degrading drive before it fails fully, ensuring the rebuild happens proactively.
Running chkdsk affects file systems, not drive health. Disabling write caching is unrelated. Rebuilding the array should only occur after replacing the faulty drive.
Replacing the drive prevents a catastrophic dual-drive failure scenario, which RAID 5 cannot survive.
This approach aligns with CompTIA troubleshooting guidelines for RAID maintenance and S.M.A.R.T.
diagnostics.
質問 # 466
An administrator is setting up a conference room for an important board of directors meeting. The chief operating officer has asked the administrator to make sure a redundant internet connection is available. The office only has one ISP. and the conference room equipment is currently configured using Ethernet. Which of the following should the administrator set up in order to ensure redundancy?
正解：A
解説：
A hotspot provides a redundant internet connection using cellular data. This ensures connectivity for the meeting even if the primary ISP connection fails.
質問 # 467
A user would like to connect a laptop to a monitor, keyboard, and mouse when in the office. The user prefers to use as few cables as possible. Which of the following would best achieve that goal?
正解：B
解説：
A docking station allows users to connect multiple peripherals (monitor, keyboard, mouse, etc.) to a laptop with a single connection, reducing cable clutter and improving convenience.
From CompTIA A+ 220-1101 Official Study Guide, Objective 3.1 - Laptop hardware and connections:
"A docking station enables the use of multiple external devices with a laptop using only one or two connections, making it ideal for office environments." Verified Source:
CompTIA A+ Core 1 (220-1101) Official Study Guide, Chapter 3: Laptop Hardware CompTIA Exam Objectives 220-1101, Domain 3.1
質問 # 468
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