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| Section | Weight | Objectives |
|---|---|---|
| Networking | 23% | - Network types, topologies & cables - IP addressing & protocols - Network connectivity & troubleshooting - Network devices & configuration - Wireless networking standards & security |
| Hardware | 25% | - Hardware maintenance & upgrades - Custom PC builds & specialized hardware - Peripherals & storage devices - PC components, installation & configuration - Power supply & cooling systems |
| Mobile Devices | 13% | - Mobile device security & troubleshooting - Network connectivity & configuration - Synchronization & data management - Hardware components & replacement |
| Hardware and Network Troubleshooting | 28% | - Hardware problems & solutions - Network issues & resolution - Troubleshooting methodology - Component failure diagnosis & repair |
| Virtualization and Cloud Computing | 11% | - Virtualization concepts & hypervisors - Cloud infrastructure & resource management - Cloud service models & deployment types - Virtual & cloud security |
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NEW QUESTION # 347
A user ' s smartphone frequently disconnects from Wi-Fi networks, particularly in crowded areas like airports and coffee shops. The user also notices that their device shows a lower Wi-Fi signal strength compared to other devices in the same location. Which of the following is likely contributing to the smartphone ' s Wi-Fi connectivity issues?
Answer: B
Explanation:
The symptoms clearly point to a hardware-level signal degradation issue, which is most commonly caused by a malfunctioning or damaged Wi-Fi antenna in the smartphone. CompTIA A+ mobile device troubleshooting emphasizes comparing the affected device ' s signal strength with other nearby devices. In this case, other devices in the same location have stronger Wi-Fi signals, meaning the network itself is functioning normally.
The consistent low signal across multiple networks strongly suggests antenna failure.
Modern smartphones use internal antenna assemblies located along the frame or behind the back cover. If the antenna becomes loose, damaged, or obstructed, the device may show weak or unstable Wi-Fi connectivity, especially in crowded environments where strong, stable reception is required to maintain a connection.
Option B (outdated Wi-Fi standard) would limit speed but not cause significant signal weakness compared to surrounding devices. Option C (interference) affects all devices in an area similarly-not just one device.
Option D (power settings) may reduce background activity or scanning frequency, but it does not cause consistently low signal strength.
Therefore, the most likely cause is a malfunctioning Wi-Fi antenna inside the smartphone.
NEW QUESTION # 348
A company requires a storage solution that combines performance and redundancy for a main database server with high levels of read/write operations. Which of the following storage configurations best meets these requirements?
Answer: A
Explanation:
For a main database server with high read/write activity, the best RAID choice must deliver strong performance while still providing fault tolerance. Per CompTIA A+ Core 1 (220-1201) storage/RAID objectives, RAID 10 (1+0) combines disk mirroring (RAID 1) and disk striping (RAID 0). Striping improves performance by distributing read/write operations across multiple disks, which is ideal for databases that perform frequent transactions. Mirroring provides redundancy by keeping an identical copy of data on a paired drive, allowing the system to tolerate drive failures (typically one drive per mirrored pair) without data loss.
RAID 0 is fast but offers no redundancy, making it inappropriate for critical servers. RAID 5 and RAID 6 use parity, which provides redundancy but introduces a write penalty because parity must be calculated and written during updates-often a poor fit for workloads with heavy random writes like databases. RAID 6 is even more write-intensive
NEW QUESTION # 349
A technician is setting up a workstation. Which of the following settings should the technician configure to ensure that users can connect to the network? (Select three).
Answer: F,G,H
Explanation:
For a device to communicate on a network, it must have a valid IP address, subnet mask, and default gateway configured.
From CompTIA A+ 220-1101 Official Study Guide, Objective 2.2 - Network configuration:
"A valid IP address, subnet mask, and gateway are required for network connectivity and communication outside the local network." Verified Source:
* CompTIA A+ Core 1 (220-1101) Official Study Guide, Chapter 2: Network Configuration
* CompTIA Exam Objectives 220-1101, Domain 2.2
NEW QUESTION # 350
After a hard drive is upgraded on a database server, an administrator notices slower performance and random S.M.A.R.T. errors. Upon further investigation, the administrator notes an increase in read/write times. Which of the following should the administrator do next?
Answer: C
Explanation:
After replacing or upgrading a drive in a RAID array, the controller must rebuild the array by reconstructing and writing data to the new drive. This process increases disk activity, slows performance, and can temporarily produce monitoring alerts until it finishes.
NEW QUESTION # 351
A technician needs to ensure all data communications on all network devices are encrypted when logging in to the console. Which of the following protocols should the technician enable?
Answer: D
Explanation:
SSH (Secure Shell) encrypts data communications for secure remote login and management of network devices, ensuring all console connections are encrypted.
Why Not B (LDAP): LDAP is used for directory services and does not encrypt by default.
Why Not C (FTPS): FTPS encrypts file transfers, not console communications.
Why Not D (SMTP): SMTP is used for email transmission, not for securing login sessions.
CompTIA A+ Exam Reference: Core 1 (220-1201), Section 2.7, network security protocols.
NEW QUESTION # 352
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