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| Section | Weight | Objectives |
|---|---|---|
| Topic 1: Mobile Devices | 13% | - Synchronization & data management - Mobile device security & troubleshooting - Hardware components & replacement - Network connectivity & configuration |
| Topic 2: Virtualization and Cloud Computing | 11% | - Virtual & cloud security - Cloud infrastructure & resource management - Cloud service models & deployment types - Virtualization concepts & hypervisors |
| Topic 3: Networking | 23% | - Wireless networking standards & security - Network types, topologies & cables - Network devices & configuration - Network connectivity & troubleshooting - IP addressing & protocols |
| Topic 4: Hardware | 25% | - Custom PC builds & specialized hardware - Hardware maintenance & upgrades - Peripherals & storage devices - PC components, installation & configuration - Power supply & cooling systems |
| Topic 5: Hardware and Network Troubleshooting | 28% | - Network issues & resolution - Troubleshooting methodology - Hardware problems & solutions - Component failure diagnosis & repair |
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NEW QUESTION # 604
Which of the following is used to verify the functionality of an Ethernet NIC?
Answer: C
Explanation:
A loopback plug is used to test a network interface card by sending signals from the NIC and receiving them back, verifying that the interface is functioning properly.
NEW QUESTION # 605
When a customer tries to connect a projector to a laptop in a conference room, the customer is only able to see part of the laptop ' s screen projected onto the wall. Which of the following should a technician do first to troubleshoot this issue?
Answer: B
Explanation:
The correct answer is B. Change the resolution.
According to the CompTIA A+ Core 1 220-1201 objectives, troubleshooting display issues involves checking the display settings, including resolution, scaling, and orientation. When a projector is only showing part of a laptop screen:
* The most common cause is that the laptop's output resolution does not match the projector ' s native resolution. If the laptop is set to a resolution larger than what the projector supports, only a portion of the screen is visible.
* The technician should first adjust the laptop ' s resolution to match the projector's native resolution before attempting other options like extending or mirroring the desktop.
Why the other options are incorrect:
* A. Extend the desktop: This is only used if the user wants to have two separate screens (dual monitors), not to fix partial display issues.
* C. Mirror the desktop: Mirroring duplicates the laptop display but does not solve issues caused by resolution mismatch.
* D. Switch the input source: Necessary only if the projector is on the wrong input, but the problem here is a partial display, not no display.
References:
CompTIA A+ Core 1 (220-1201) Exam Objectives - Hardware: "Given a scenario, troubleshoot problems related to displays including resolution and projector issues." Mike Meyers' CompTIA A+ Certification Guide, 13th Edition, Chapter on Display Devices.
NEW QUESTION # 606
Which of the following connection methods allows a mobile device to share an LTE connection with other nearby devices?
Answer: A
Explanation:
A hotspot allows a mobile device to share its LTE (cellular) internet connection with other nearby devices via Wi-Fi, effectively turning the mobile device into a portable wireless access point.
NEW QUESTION # 607
Which of the following supports the most devices due to its status as a legacy technology?
Answer: B
Explanation:
The correct answer is A. 2.4GHz.
In the CompTIA A+ Core 1 220-1201 networking objectives, wireless networking technologies include frequency bands such as 2.4GHz, 5GHz, and 6GHz, along with related concepts like channels, regulations, channel selection, Bluetooth, 802.11 standards, NFC, and RFID.
The 2.4GHz band supports the most devices because it is the oldest and most widely adopted Wi-Fi frequency listed. Many legacy devices, including older laptops, printers, IoT devices, smart home devices, and wireless peripherals, still rely on 2.4GHz. It also has better range and wall penetration than higher-frequency bands, although it is usually more crowded and slower.
Why the other options are incorrect:
B). 5GHz
5GHz is newer than 2.4GHz and generally provides faster speeds with less interference, but it does not support as many older legacy devices.
C). 6GHz
6GHz is the newest Wi-Fi frequency option used with newer Wi-Fi standards, so it has the least legacy device support among the Wi-Fi frequency choices.
D). NFC
NFC is a short-range communication technology, not a Wi-Fi frequency band. It is used for close-proximity functions such as tap-to-pay, pairing, and access cards, so it is not the best answer.
NEW QUESTION # 608
A user returns from a trip and discovers a computer that is connected to the LAN times out intermittently Upon investigation, a technician finds the RJ45 pin is not property terminated Which of the following networking tools is most appropriate to fix the issue?
Answer: C
Explanation:
D: Crimper:
A crimper is used to terminate an RJ45 cable properly by attaching the connector to the twisted-pair wires.
If the termination is not done correctly, the connection will be intermittent or fail entirely.
Incorrect Options:
A: Toner probe: Used to locate cables or trace their path, not for terminating RJ45 connectors.
B: Cable tester: Useful for testing connectivity but does not fix termination issues.
C: Punchdown: Used to connect wires to a patch panel or keystone jack, not for RJ45 connectors.
Key Takeaway: A crimper is the proper tool for fixing an improperly terminated RJ45 connection.
Reference: CompTIA A+ Core 1 Exam Objectives (220-1201), Domain 2.8 - Using appropriate tools for network troubleshooting.
NEW QUESTION # 609
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