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| Section | Weight | Objectives |
|---|---|---|
| Topic 1: Virtualization and Cloud Computing | 11% | - Cloud service models & deployment types - Cloud infrastructure & resource management - Virtualization concepts & hypervisors - Virtual & cloud security |
| Topic 2: Hardware | 25% | - PC components, installation & configuration - Hardware maintenance & upgrades - Power supply & cooling systems - Custom PC builds & specialized hardware - Peripherals & storage devices |
| Topic 3: Mobile Devices | 13% | - Synchronization & data management - Hardware components & replacement - Mobile device security & troubleshooting - Network connectivity & configuration |
| Topic 4: Hardware and Network Troubleshooting | 28% | - Hardware problems & solutions - Troubleshooting methodology - Network issues & resolution - Component failure diagnosis & repair |
| Topic 5: Networking | 23% | - IP addressing & protocols - Network types, topologies & cables - Network connectivity & troubleshooting - Wireless networking standards & security - Network devices & configuration |
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NEW QUESTION # 434
Which of the following has the best penetration through physical objects, such as walls?
Answer: B
Explanation:
2.4GHz Wi-Fi signals have better penetration through walls and other obstacles compared to 5GHz and 6GHz. Lower frequency waves (like 2.4GHz) travel farther and are less absorbed by physical barriers.
From the CompTIA A+ 220-1101 Official Study Guide, Objective 2.5 - Compare and contrast wireless networking protocols:
"The 2.4GHz frequency band offers greater range and better penetration through walls and obstacles than higher frequencies like 5GHz and 6GHz. Higher frequencies provide faster speeds but are more easily absorbed by walls." NFC (Near Field Communication) is not a Wi-Fi technology and works only over very short distances (a few centimeters).
Verified Source:
CompTIA A+ Core 1 (220-1101) Official Study Guide, Chapter 2: Wireless Networking CompTIA Exam Objectives 220-1101, Domain 2.5
NEW QUESTION # 435
A user keeps getting an error message when trying to print a letter. The printer is normally used to print cards and invitations. The user tries printing from a different computer, but the issue persists. Which of the following should the user do to resolve the issue?
Answer: D
Explanation:
If a printer is set to use a special tray (for cards/invitations) but a different type of print job is attempted (like a letter), a paper tray setting mismatch can cause errors. Changing the tray setting to match the print media resolves the issue.
From CompTIA A+ 220-1101 Official Study Guide, Objective 4.3 - Troubleshooting printers:
"If print jobs fail when media type changes, verify and adjust the paper tray settings to match the required output." Verified Source:
CompTIA A+ Core 1 (220-1101) Official Study Guide, Chapter 4: Printer Troubleshooting CompTIA Exam Objectives 220-1101, Domain 4.3
NEW QUESTION # 436
Which of the following, when combined, are used to make sure a workstation always has the same IP address on a network managed with DHCP?
Answer: A
Explanation:
To ensure a workstation always receives the same IP address while still using DHCP, the correct method is to configure a DHCP reservation. A reservation "combines" two key pieces: the workstation's MAC address (hardware address) and a specific IP address within the DHCP scope. When the workstation requests an address, the DHCP server matches the request to the stored MAC address and consistently assigns the reserved IP each time the device connects. This provides the benefits of DHCP (central management, consistent options like gateway/DNS, easier changes) while giving the workstation a predictable IP, which is often needed for management, monitoring, or firewall rules.
Creating a new scope is used to define an address pool and options for an entire subnet, but it does not guarantee one device always gets the same IP. NAT translates private IPs to public IPs and is unrelated to consistent DHCP assignments for a specific workstation. APIPA automatic private IP addressing 169.254.x.x occurs when DHCP fails and is not a controlled way to ensure a consistent, usable network address.
Therefore, assigning a reservation is the correct answer.
NEW QUESTION # 437
A user reports that they cannot get their laptop to work with a video projector connected with an HDMI cable.
The projector is turned on. The HDMI cable is securely connected on both ends, and the laptop displays properly on its own screen. The display mode is set to "Duplicate" on the laptop. Which of the following is most likely causing the issue?
Answer: B
Explanation:
Comprehensive and Detailed Explanation
CompTIA troubleshooting procedures emphasize confirming input source settings on the external display device.
Even if the HDMI cable is connected properly:
* The projector must be set to the correct input source (HDMI 1, HDMI 2, etc.).
* If the source is incorrect, the laptop will not display, even though the laptop output is functioning normally.
Since the projector is powered on, and the laptop is already set to "Duplicate," and cables are good, the most likely cause is:
# The projector is set to the wrong input source.
This is a common real-world issue covered under "video and projector troubleshooting." Why the other answers are incorrect A). Projector may support HDMI; this is not the "most likely." B). "Extend" is not required - "Duplicate" works for projectors.
C). A failed HDMI port is possible but not the most likely scenario.
NEW QUESTION # 438
Which of the following internet connection types is primarily used for high-speed internet access in rural areas where traditional broadband services are unavailable?
Answer: A
Explanation:
Satellite internet is commonly used in rural or remote locations where wired broadband options such as cable and fiber are not available and where DSL service may be limited by distance from the provider's equipment.
CompTIA A+ Core 1 emphasizes understanding internet connection types and where each is typically deployed. Satellite works by using a dish at the customer site to communicate with a satellite, which then relays traffic to a ground station connected to the internet backbone. Because it does not depend on local cable plant, telephone central office proximity, or neighborhood fiber buildouts, it can be deployed in areas with minimal infrastructure.
Fiber (A) provides very high speeds and low latency but requires extensive physical infrastructure that is often lacking in rural regions. Cable (D) also requires a local cable network buildout and is usually concentrated in more populated areas. DSL (C) uses existing telephone lines, but performance and availability depend heavily on distance from the DSL provider's equipment, making it unreliable or unavailable in sparsely populated regions. While satellite often involves higher latency and can be affected by weather, it remains a primary option when traditional broadband services are not present.
NEW QUESTION # 439
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