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| Section | Weight | Objectives |
|---|---|---|
| Topic 1: Hardware | 25% | - PC hardware components
|
| Topic 2: Virtualization and Cloud Computing | 11% | - Cloud computing concepts
|
| Topic 3: Hardware and Network Troubleshooting | 29% | - Troubleshooting methodology
|
| Topic 4: Networking | 20% | - Network fundamentals
|
| Topic 5: Mobile Devices | 15% | - Mobile device hardware and components
|
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NEW QUESTION # 641
Which of the following minimizes the time it takes to connect a display, keyboard, mouse, and network cable to a laptop?
Answer: C
Explanation:
A port replicator is designed to allow a user to quickly connect a laptop to multiple peripherals (display, keyboard, mouse, network, etc.) using a single interface, reducing setup time.
From CompTIA A+ 220-1101 Official Study Guide, Objective 3.1 - Laptop hardware and connections:
"Port replicators offer quick connections for multiple peripherals, streamlining the process of docking and undocking a laptop." Verified Source:
CompTIA A+ Core 1 (220-1101) Official Study Guide, Chapter 3: Laptop Hardware CompTIA Exam Objectives 220-1101, Domain 3.1
NEW QUESTION # 642
SIMULATION 4
A user reports poor performance on the application server.
INSTRUCTIONS
Click on Server 1 and Server 2 and review the information presented in each chart to determine which drives need to be replaced.
Select the appropriate replacement drive that should be used, for the least performance degradation to the server.
If at any time you would like to bring back the initial state of the simulation, please click the Reset All button.
Answer:
Explanation:
The degraded status on Server 2 indicates a RAID-5 issue, typically due to a failed or failing drive. In RAID-5 configurations, when one drive fails, the system can still operate but with reduced performance as parity data is used to rebuild missing data on-the-fly.
Recommended Replacement Drive:
- To minimize performance degradation, the replacement drive should be:
- SAS HDD with the same specifications (64KB stripe size, no read-ahead, and write-back policy).
- Matching the configuration exactly ensures seamless integration and optimizes recovery speed in the RAID-5 array.
In RAID-5, degraded performance is expected when one drive fails, as parity data needs to rebuild missing information during each read/write process. Replacing the failed drive restores the RAID array to optimal status, reducing the load on existing drives and returning the system to normal read/write performance. The write-back policy and disabled disk cache settings are designed to reduce latency and increase efficiency, essential for handling real-time applications.
NEW QUESTION # 643
Which of the following allows for a beam of light to transmit data through a flexible cable?
Answer: A
Explanation:
Single-mode fiber (as well as multi-mode fiber) transmits data using beams of light, allowing for high-speed data transfer over flexible fiber-optic cables.
NEW QUESTION # 644
Which of the following devices can handle large volumes of data and uses flash memory?
Answer: A
Explanation:
An SSD (Solid-State Drive) is the correct choice because it stores data using flash memory (NAND) and is commonly available in large capacities suitable for operating systems, applications, and mass storage. In CompTIA A+ Core 1 terms, SSDs contain no moving parts, which makes them faster and more reliable than mechanical drives for many workloads. They provide significantly improved read/write performance, lower latency, reduced heat output, and better shock resistance-important for both desktops and especially laptops.
SSDs are also widely used in modern systems via SATA or NVMe (PCIe) interfaces, with NVMe offering the highest performance for large data transfers.
The other options do not match "flash memory": DVD-RW is optical media with limited capacity and slower speeds, intended for removable storage rather than large-volume primary storage. An HDD can store large volumes of data but uses magnetic platters and moving heads, not flash memory. Tape is also magnetic media, typically used for backups and archival storage, and while it can store large amounts, it does not use flash and is designed for sequential access rather than fast random access. Therefore, SSD is the best answer.
NEW QUESTION # 645
Which of the following tools will a technician most likely use to identify an unlabeled network connection?
Answer: D
NEW QUESTION # 646
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