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| Section | Weight | Objectives |
|---|---|---|
| Topic 1: Software Troubleshooting | 22% | - Device and application troubleshooting
|
| Topic 2: Operating Systems | 31% | - Windows OS installation, configuration, and management
|
| Topic 3: Operational Procedures | 22% | - Safety and environmental procedures
|
| Topic 4: Security | 25% | - Security practices
|
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NEW QUESTION # 318
Which of the following RAM characteristics allows for recovery from data faults in memory modules?
Answer: A
Explanation:
Error-correcting code memory detects and corrects data corruption in memory, allowing recovery from faults and improving system reliability.
NEW QUESTION # 319
A user reports that while their laptop performs well for general office tasks, it experiences significant lag and low frame rates when running a newly installed high-end 3-D game. The laptop is equipped with a high-end CPU and 16 GB of RAM, but the user suspects the system is not utilizing its full potential for gaming. Which of the following should the technician do to resolve this issue?
Answer: A
Explanation:
This is a classic symptom of graphics performance limitations : modern games stress GPU/VRAM far more than older or lightweight titles. The All-in-One guide explains that "graphically demanding applications...
state specific graphics requirements," and highlights that CompTIA focuses on "dedicated graphics cards versus integrated ones." It further clarifies that integrated GPUs are typically less powerful than dedicated GPUs and that demanding software (including games) often assumes dedicated graphics, with VRAM requirements frequently included.
On many "gaming-ready" laptops, the system may have both integrated and discrete graphics, and performance issues occur if the game runs on the integrated GPU instead of the discrete GPU. Selecting dedicated graphics (for the application or globally, depending on the platform) forces the workload onto the more capable GPU and typically resolves lag. Overclocking RAM is not the first-line fix and adds instability risk, NIC teaming is irrelevant to local rendering performance, and hyperthreading helps some CPU workloads but won't solve a GPU-bound modern game. Therefore, Select dedicated graphics (C) is best.
NEW QUESTION # 320
A user is unable to use the latest version of an app on a legacy tablet. What is the most likely reason?
Answer: C
Explanation:
Comprehensive and Detailed Explanation From Exact Extract:
Older tablets may not support newer app versions due toincompatible or unsupported operating systems. App developers often drop support for outdated OS versions.
FromTravis Everett - CompTIA A+ All-in-One Exam Guide:
"When an app won't install on an older device, check the OS version. Most apps require a minimum OS level for compatibility and security."
NEW QUESTION # 321
Which of the following authentication methods is the best way to prevent users from frequently entering their credentials?
Answer: B
Explanation:
Single sign-on (SSO)allows users to authenticate once and gain access to multiple systems without re-entering credentials, which significantly enhances user convenience while maintaining security.
FromQuentin Docter - CompTIA A+ Complete Study Guide:
"Single sign-on streamlines authentication by allowing users to log in once and access all authorized resources, reducing credential fatigue and improving security."
NEW QUESTION # 322
A technician inspects the following workstation configuration:
The workstation is unable to open any external websites. The browser displays an error message that says that the site cannot be reached.
Answer: D
Explanation:
The correct answer is C. The default gateway is not set, and this is clearly indicated by the ipconfig output showing the Default Gateway: 0.0.0.0. In TCP/IP networking, the default gateway is the router address that allows a workstation to communicate with networks outside its local subnet, including the internet. Without a valid default gateway, a device can only communicate with other devices on the same local network.
According to the Quentin Docter - CompTIA A+ Complete Study Guide, a missing or incorrect default gateway is one of the most common causes of a system being unable to access external resources. The guide explains that when a destination IP address is outside the local subnet, the workstation forwards the traffic to the default gateway. If no gateway is defined, the traffic has nowhere to go and is dropped.
The Travis Everett & Andrew Hutz - CompTIA A+ All-in-One Exam Guide reinforces that an IP address such as 10.203.10.22 with a subnet mask of 255.255.255.0 is valid for internal communication. The DNS suffix comptia.org is also not responsible for routing failures. DNS resolves names to IP addresses, but routing still requires a gateway.
The Mike Meyers / Mark Soper Lab Manual further clarifies that a subnet mask error would prevent even local communication, which is not indicated here. Because only external websites are unreachable, the absence of a default gateway is the definitive root cause.
NEW QUESTION # 323
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