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| Section | Weight | Objectives |
|---|---|---|
| Topic 1: Networking | 23% | - Network connectivity & troubleshooting - Network types, topologies & cables - Wireless networking standards & security - IP addressing & protocols - Network devices & configuration |
| Topic 2: Virtualization and Cloud Computing | 11% | - Cloud infrastructure & resource management - Virtualization concepts & hypervisors - Cloud service models & deployment types - Virtual & cloud security |
| Topic 3: Hardware | 25% | - Hardware maintenance & upgrades - Power supply & cooling systems - PC components, installation & configuration - Peripherals & storage devices - Custom PC builds & specialized hardware |
| Topic 4: Mobile Devices | 13% | - Mobile device security & troubleshooting - Hardware components & replacement - Synchronization & data management - Network connectivity & configuration |
| Topic 5: Hardware and Network Troubleshooting | 28% | - Network issues & resolution - Component failure diagnosis & repair - Troubleshooting methodology - Hardware problems & solutions |
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問題 #604
When a user scans a page on a printer, a line always appears on the printout. However, when the user prints from the printer, the line does not appear.
Which of the following maintenance steps should a technician take to resolve the issue?
答案：A
解題說明：
Because the line appears only when scanning and not when printing, the issue is with the scanner rather than the print mechanism. Dirt or debris on the flatbed glass can create consistent lines during scans, so cleaning the glass resolves the problem.
問題 #605
The Chief Information Security Officer asks a technician to inventory desktop PCs to determine which ones meet the requirements for Secure Boot. The technician must also configure the PCs for non-user-controllable keys. Which of the following are necessary to meet the enhanced security requirements? (Select two).
答案：C,D
解題說明：
Comprehensive and Detailed Explanation From Exact Extract (Aligned With CompTIA A+ 220-1201 Study Guide) To run Secure Boot, the system must have:
✔ UEFI firmware (not legacy BIOS)
Secure Boot is a UEFI feature that validates bootloaders using digitally signed keys stored in secure firmware.
✔ TPM (Trusted Platform Module)
The TPM stores cryptographic keys in tamper-resistant hardware, enabling secure key management that cannot be altered by normal users.
CompTIA materials describe TPM as essential for enhanced platform security and for storing validated boot keys when Secure Boot is enabled.
Together, UEFI + TPM provide:
Verified boot loader
Hardware-level key protection
Prevention of unauthorized OS tampering
Non-user-controllable secure key storage
Why the other options are incorrect
A . VDI - Virtual desktops; unrelated to Secure Boot hardware requirements.
B . BIOS password - Helps protect firmware settings but is not required for Secure Boot.
E . Disabled boot drive - Irrelevant to Secure Boot.
F . USB permissions - Not part of Secure Boot requirements.
問題 #606
Which of the following supplies power to an IP phone?
答案：C
解題說明：
A Power over Ethernet (PoE) switch delivers both data connectivity and electrical power through the same Ethernet cable, allowing devices like IP phones to operate without a separate power adapter.
問題 #607
Which of the following cable types is the most suitable for delivering 10Gb speeds for distances over 328ft (100m) but under 1,312ft (400m)?
答案：A
解題說明：
Comprehensive and Detailed Step-by-Step
When delivering 10Gbps speeds over long distances, fiber optic cables are the best choice. Here's the breakdown:
A . Multimode Fiber (Correct Answer):
Multimode fiber is designed for relatively short to medium distances (up to 1,312 feet or 400 meters) while supporting high-speed data transfer (10Gbps and above).
It uses LED light sources and is cost-effective for environments like data centers or within buildings.
For the specified distance of over 328ft but under 1,312ft, multimode fiber is the most suitable option.
Incorrect Options:
B . Single-mode Fiber: While single-mode fiber supports much greater distances (up to several miles or kilometers) and higher speeds, it is more expensive and unnecessary for the specified range. Single-mode fiber is generally used for long-haul networking or telecommunications.
C . Cat 6a: Cat 6a is capable of 10Gbps speeds but only up to 328ft (100 meters). It cannot reliably handle the specified distance of over 328ft.
D . Cat 6: Cat 6 is also limited to 10Gbps speeds at distances up to 328ft (100 meters). Beyond this range, it is unsuitable.
Key Takeaway:
For delivering 10Gbps speeds over distances longer than 328ft (100m) but under 1,312ft (400m), Multimode Fiber is the best choice due to its ability to support high-speed data over medium distances at a reasonable cost.
問題 #608
A technician receives a notification after a network outage that indicates the printer is not reachable. Which of the following printer settings should the technician implement to prevent this issue in the future?
答案：C
解題說明：
Assigning a static IP to network printers ensures the printer's address does not change after outages or DHCP lease expirations, preventing connectivity issues.
問題 #609
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