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| Section | Weight | Objectives |
|---|---|---|
| Topic 1: Hardware | 27% | - Storage devices (HDD, SSD, NVMe) - PC hardware and peripherals - RAM types and installation - Power supplies and connectors - Peripheral devices and connections - CPU and expansion cards - BIOS/UEFI and firmware |
| Topic 2: Networking | 20% | - Network troubleshooting - Network protocols and services - IP addressing and subnetting basics - Network configurations - Network hardware and devices - Network connectivity |
| Topic 3: Mobile Devices | 15% | - Mobile device synchronization - Mobile device configuration - Cellular connectivity and settings - Mobile device management (MDM) - Mobile device troubleshooting |
| Topic 4: Virtualization and Cloud Computing | 12% | - Virtual machine concepts - Cloud connectivity and configuration - Cloud and virtualization troubleshooting - Cloud concepts and models (IaaS, PaaS, SaaS) - Virtualization fundamentals |
| Topic 5: Hardware and Network Troubleshooting | 26% | - Network troubleshooting - Hardware troubleshooting - Common symptoms and root causes - Printers and multifunction devices - Troubleshooting methodology - Mobile device troubleshooting |
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NEW QUESTION # 421
Which of the following provides electricity to devices through network cables?
Answer: C
Explanation:
Comprehensive and Detailed Explanation From Exact Extract:
A PoE (Power over Ethernet) switch transmits both data and electrical power over Ethernet cables to devices like wireless access points or VoIP phones. This is especially useful in areas where separate power sources are not available.
#Reference: "CompTIA A+ Complete Study Guide" by Quentin Docter - Chapter 5, pages 319-321.
NEW QUESTION # 422
A technician must upgrade a computer system to improve its overall processing performance.
Which of the following should the technician focus on to ensure maximum system performance?
Answer: C
Explanation:
Clock frequency is one of the most significant factors influencing a computer system's processing performance, clock speed-measured in gigahertz (GHz)-determines how many instruction cycles a processor can perform per second.
Higher clock frequencies generally result in faster execution of instructions, leading to improved performance in both single-threaded and multi-threaded workloads. While modern CPUs also rely on core count, cache size, and architecture efficiency, clock frequency remains a primary metric for evaluating raw processing speed.
NEW QUESTION # 423
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: A
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 # 424
A systems administrator deploys BitLocker to all devices. However, one of the desktop PCs is not able to encrypt the boot drive. Which of the following should the administrator check?
Answer: A
Explanation:
Comprehensive and Detailed Explanation From Exact Extract:
BitLocker Drive Encryption in Windows requires aTrusted Platform Module (TPM)to encrypt the boot drive securely. The TPM is a dedicated microcontroller designed to secure hardware through integrated cryptographic keys. It validates system integrity during boot and securely stores the encryption keys. If BitLocker cannot find a TPM or it is disabled in BIOS/UEFI, drive encryption cannot proceed.
BitLocker can function without TPM using a USB startup key, but this compromises some security and is not recommended for managed enterprise environments.
#Reference:
* "CompTIA A+ Certification All-in-One Exam Guide, Eleventh Edition" by Travis Everett and Andrew Hutz - Chapter 13, page 536-537.
* "CompTIA A+ Guide to Managing and Troubleshooting PCs" by Mark Soper - Chapter 13, page 446-
447.
* "CompTIA A+ Complete Study Guide" by Quentin Docter - Chapter 1, page 36-38.
NEW QUESTION # 425
A technician is setting up a new SOHO wireless router. According to security best practices, which of the following should the technician do first?
Answer: A
Explanation:
The first security step after deploying a new router is to change the default administrative password.
Default credentials are well known and pose a security risk if left unchanged.
From CompTIA A+ 220-1101 Official Study Guide, Objective 2.3 - Secure a wireless network:
"Always change default administrative credentials before further configuration to prevent unauthorized access." Verified Source:
* CompTIA A+ Core 1 (220-1101) Official Study Guide, Chapter 2: Wireless Security
* CompTIA Exam Objectives 220-1101, Domain 2.3
NEW QUESTION # 426
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