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| Section | Weight | Objectives |
|---|---|---|
| Mobile Devices | 15% | - Mobile device configuration - Mobile device synchronization - Mobile device management (MDM) - Cellular connectivity and settings - Mobile device troubleshooting |
| Virtualization and Cloud Computing | 12% | - Virtual machine concepts - Cloud and virtualization troubleshooting - Cloud connectivity and configuration - Virtualization fundamentals - Cloud concepts and models (IaaS, PaaS, SaaS) |
| Hardware and Network Troubleshooting | 26% | - Troubleshooting methodology - Common symptoms and root causes - Network troubleshooting - Printers and multifunction devices - Mobile device troubleshooting - Hardware troubleshooting |
| Hardware | 27% | - CPU and expansion cards - Peripheral devices and connections - Storage devices (HDD, SSD, NVMe) - PC hardware and peripherals - Power supplies and connectors - RAM types and installation - BIOS/UEFI and firmware |
| Networking | 20% | - IP addressing and subnetting basics - Network connectivity - Network hardware and devices - Network troubleshooting - Network protocols and services - Network configurations |
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NEW QUESTION # 600
Which of the following would prevent a virtual machine from communicating with any endpoints on a network or the internet?
Answer: A
Explanation:
Comprehensive and Detailed In-Depth Explanation:
Asandboxis an isolated virtual environment used totest or run applications securelywithout risk to the host or network. It prevents the VM from communicating with external systems, making it ideal for testing malware or suspicious software.
* Option A (VDI):Virtual Desktop Infrastructure allows network communication; it does not restrict it.
* Option B (Private cloud):Refers to a cloud deployment model, not a communication barrier.
* Option D (Type 1 hypervisor):Runs VMs directly on hardware and doesnotinherently block communication.
CompTIA A+ Core 1 Exam Objective Reference:
* Objective 4.1: Compare and contrast cloud computing concepts.
NEW QUESTION # 601
Which DNS record is used by DMARC to verify the authenticity of email servers?
Answer: D
Explanation:
CompTIA A+ explains that DMARC (Domain-based Message Authentication, Reporting, and Conformance) relies on TXT DNS records to define its policies. TXT records allow administrators to publish arbitrary text- based configuration data, including DKIM and SPF policies, which DMARC references.
MX records identify mail servers, A records map IP addresses, and CNAME records create aliases none are used to store DMARC policy rules.
DMARC improves email authenticity by requiring SPF and DKIM alignment and specifying how receiving servers should handle failed validations. The A+ exam explicitly mentions TXT records as the method used for SPF, DKIM, and DMARC storage.
Therefore, the correct answer is the TXT record, which stores the policy used by DMARC to authenticate senders and prevent spoofing.
NEW QUESTION # 602
A student configures a wireless SOHO network to connect four laptops and one multifunction printer. Which setting ensures the printer is always available?
Answer: D
Explanation:
Printers in SOHO environments must maintain a consistent IP address so devices can regularly locate them for scanning and printing tasks. CompTIA A+ emphasizes assigning static IPs to network printers to prevent address changes that occur with DHCP.
Laptops can remain DHCP clients because their address consistency is less critical. APIPA cannot communicate across networks and therefore should not be used. Assigning public IPs is incorrect and unsafe.
By giving the printer a static IP within the same subnet, all laptops can reliably access it, and the network remains organized and functional exactly as the A+ objectives recommend.
NEW QUESTION # 603
A user's smartphone frequently disconnects from Wi-Fi networks, particularly in crowded areas like airports and coffee shops. The user also notices that their device shows a lower Wi-Fi signal strength compared to other devices in the same location. Which of the following is likely contributing to the smartphone's Wi-Fi connectivity issues?
Answer: A
Explanation:
Consistently lower signal strength than other devices in the same environment indicates a hardware-related issue rather than general interference. A malfunctioning or damaged Wi-Fi antenna in the smartphone would reduce signal reception, leading to frequent disconnections, especially in environments with weaker or congested signals.
NEW QUESTION # 604
A company rolls out a mandatory OS update to all PCs. A legacy application that one department uses does not function on the new OS and is EOL. Which of the following should a technician suggest to solve the issue with minimal data loss, expense, and disruption to the users?
Answer: D
Explanation:
The correct answer is B. Moving to a supported system under a Type 2 hypervisor.
In the CompTIA A+ Core 1 (220-1201) objectives, virtualization is a key concept for maintaining compatibility with legacy systems. A Type 2 hypervisor (hosted hypervisor) runs on top of an existing operating system and allows users to run a virtual machine (VM) with an older OS.
This solution is ideal because:
* It allows the legacy application to run in its required OS environment.
* It avoids replacing the application (which could cause data loss or compatibility issues).
* It is cost-effective, as it uses existing hardware.
* It minimizes user disruption, since users can continue using the application within a VM.
Why the other options are incorrect:
A). Setting up a bare-metal hypervisor
A Type 1 (bare-metal) hypervisor is more complex, costly, and disruptive. It typically requires dedicating hardware and is not ideal for a single department use case.
C). Upgrading to an alternative product and importing the data
Although this may be a long-term solution, it involves higher cost, potential data loss, retraining, and disruption.
D). Uploading the database to a private cloud
This does not solve the compatibility issue of the legacy application with the new OS.
NEW QUESTION # 605
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