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| Section | Weight | Objectives |
|---|---|---|
| Topic 1: Hardware and Network Troubleshooting | 28% | - Hardware problems & solutions - Network issues & resolution - Troubleshooting methodology - Component failure diagnosis & repair |
| Topic 2: Virtualization and Cloud Computing | 11% | - Virtual & cloud security - Cloud infrastructure & resource management - Virtualization concepts & hypervisors - Cloud service models & deployment types |
| Topic 3: Mobile Devices | 13% | - Synchronization & data management - Hardware components & replacement - Mobile device security & troubleshooting - Network connectivity & configuration |
| Topic 4: Hardware | 25% | - Custom PC builds & specialized hardware - Hardware maintenance & upgrades - PC components, installation & configuration - Power supply & cooling systems - Peripherals & storage devices |
| Topic 5: Networking | 23% | - Network devices & configuration - IP addressing & protocols - Network connectivity & troubleshooting - Network types, topologies & cables - Wireless networking standards & security |
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NEW QUESTION # 404
A technician is working on a RAID 1 array that is apparently degraded. The technician verifies the RAM and power are both operating as expected. Which of the following can the technician do to further isolate the issue?
Answer: B
Explanation:
Adegraded RAID 1array usually meansone of the drives has failed or is failing. The correctnext step is torun diagnostics on each driveto identify the faulty one. RAID 1 uses mirroring, so one good drive should still contain all the data.
Option B:chkdsk checks file system integrity, not hardware drive health.
Option C:Rebuilding should only occurafteridentifying and replacing a faulty drive.
Option D:RAID 0 offers no redundancy and would destroy data in this context.
CompTIA A+ Core 1 Exam Objective Reference:
Objective 3.5: Given a scenario, troubleshoot problems related to storage devices.
NEW QUESTION # 405
Which of the following cable types must be used when running copper network cable through a suspended ceiling that is used for air ventilation?
Answer: D
Explanation:
When installing copper network cable in spaces that serve as air-handling plenums, safety regulations require the use of plenum-rated cable. Suspended ceilings used for ventilation fall into this category. CompTIA A+ emphasizes that plenum spaces require cable with low-smoke, fire-resistant insulation made from specialized materials that limit toxic emissions during combustion.
Plenum-rated cabling (CMP) is designed to meet strict fire codes such as NFPA 70 (National Electrical Code). It prevents smoke-filled ventilation pathways, which could rapidly spread fire or toxic fumes throughout a building. Standard PVC-jacketed twisted pair cables are not permitted in plenum spaces because they produce thick, toxic smoke when burned.
Multimode cable refers to fiber optics, not copper cabling. Coaxial cable is used for broadband and certain RF applications but does not inherently meet plenum safety requirements unless specifically plenum-rated. Twisted pair describes the cable's internal structure (Cat5e, Cat6, etc.), but it does not indicate the type of jacket. Only plenum-rated twisted pair is acceptable.
Therefore, the correct answer is Plenum, as it ensures compliance with safety standards and building codes, prevents hazardous conditions, and aligns with CompTIA best practices for structured cabling installations.
NEW QUESTION # 406
A financial institution needs a secure way to protect encryption keys used for unlocking chips on its credit cards. Which of the following should the institution use?
Answer: D
Explanation:
A Hardware Security Module (HSM) securely manages cryptographic keys, including those used to protect credit card chips.
NEW QUESTION # 407
Which of the following systems most likely contains ECC memory?
Answer: C
Explanation:
Error-Correcting Code (ECC) memory is designed to detect and correct single-bit memory errors, increasing system reliability and data integrity. According to CompTIA Core 1 (220-1201) hardware and memory objectives, ECC memory is most commonly used in servers and enterprise-grade systems where uptime and data accuracy are critical.
A file server is responsible for storing, managing, and serving data to many users simultaneously. Memory errors in such systems could lead to data corruption, crashes, or security issues. For this reason, servers frequently use ECC memory in combination with server-class CPUs and motherboards that support error correction.
High-end gaming consoles prioritize performance and cost efficiency rather than fault tolerance, and they do not use ECC memory. Smartphones rely on low-power mobile RAM without error correction, and laptops typically use non-ECC memory unless they are specialized workstation-class systems, which is not indicated in this question.
CompTIA emphasizes that ECC memory is associated with mission-critical environments, particularly servers and enterprise systems, making a file server the most appropriate answer.
References:
CompTIA A+ Core 1 (220-1201) Official Study Guide - RAM Types, ECC Memory, and Server Hardware
NEW QUESTION # 408
A company provides cell phones to employees who travel internationally. An employee brings their phone to the help desk so the necessary equipment can be installed. However, the technician cannot install any new hardware on the phone. Which of the following will the technician require so the phone can connect to a different provider?
Answer: D
Explanation:
An eSIM (embedded SIM) allows users to change carriers and provision new cellular service without installing any physical hardware. It is managed via software and is ideal for international travelers who need to switch providers quickly.
From the CompTIA A+ 220-1101 Official Study Guide, Objective 3.3 - Install and configure mobile device network connectivity:
"eSIMs provide carrier flexibility by enabling remote provisioning and profile switching, making it possible to connect to different networks without a physical SIM card." Verified Source:
* CompTIA A+ Core 1 (220-1101) Official Study Guide, Chapter 3: Mobile Devices
* CompTIA Exam Objectives 220-1101, Domain 3.3
NEW QUESTION # 409
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