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| Section | Weight | Objectives |
|---|---|---|
| Networking | 23% | - Network types, topologies & cables - Network devices & configuration - Network connectivity & troubleshooting - Wireless networking standards & security - IP addressing & protocols |
| Hardware | 25% | - PC components, installation & configuration - Power supply & cooling systems - Hardware maintenance & upgrades - Peripherals & storage devices - Custom PC builds & specialized hardware |
| Mobile Devices | 13% | - Network connectivity & configuration - Synchronization & data management - Hardware components & replacement - Mobile device security & troubleshooting |
| Virtualization and Cloud Computing | 11% | - Cloud service models & deployment types - Virtualization concepts & hypervisors - Virtual & cloud security - Cloud infrastructure & resource management |
| Hardware and Network Troubleshooting | 28% | - Component failure diagnosis & repair - Troubleshooting methodology - Hardware problems & solutions - Network issues & resolution |
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問題 #179
A company wants to optimize its hardware usage by running multiple operating systems concurrently on a single physical server. Which of the following concepts achieves this goal?
答案：D
解題說明：
Host-based virtualization allows multiple operating systems to run simultaneously on a single physical server by using a host OS with a hypervisor layer, optimizing hardware utilization.
問題 #180
Which of the following is designed to be used in commercial spaces?
答案：D
解題說明：
Plenum cabling is designed for use in commercial spaces where cables run through air ducts or plenum spaces, as it has fire-resistant properties and emits less toxic smoke.
問題 #181
A technician is troubleshooting a PoE phone that will not turn on. When a laptop is plugged directly into the switchport for the phone the technician sees a data link LED and activity. Which of the following tools should the technician use to verify PoE availability to the phone?
答案：A
解題說明：
Reasoning: A cable tester capable of testing Power over Ethernet (PoE) functionality can verify whether the switchport is providing the required power to the phone. This tool measures both the presence of data and the voltage or wattage being provided through the Ethernet cable.
This is the most effective way to confirm that PoE is available on the port.
Why the Other Options Are Incorrect:
A: Network tap:
A network tap is primarily used to monitor network traffic, not to test for PoE availability. It cannot verify if power is being supplied through the Ethernet cable.
C: Loopback plug:
A loopback plug is used to test the functionality of a network port by creating a loop for transmitted and received signals. It does not measure or verify PoE availability.
D: Toner probe:
A toner probe is used for tracing and identifying network cables. It cannot test for PoE functionality.
Practical Example:
A PoE phone might not turn on due to a misconfigured or faulty switchport. Using a cable tester capable of measuring PoE would help the technician determine if the switchport is supplying sufficient power to the phone.
CompTIA A+ Exam Objective Alignment:
Objective 2.1: Identify common networking hardware and tools, including PoE-enabled devices and cable testers.
問題 #182
Which of the following internet connection types will most likely experience interference from rain?
答案：D
解題說明：
Satellite internet relies on radio signals transmitted between satellites and ground stations. Heavy rain can absorb or scatter these signals, a phenomenon known as rain fade, which degrades connection quality and causes interference.
問題 #183
Which of the following port numbers is used for a file transfer?
答案：D
解題說明：
Port 21 is the default TCP port for the File Transfer Protocol (FTP), which is used to establish control connections for file transfers between clients and servers.
問題 #184
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220-1201考題: https://www.newdumpspdf.com/220-1201-exam-new-dumps.html
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