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CompTIA A+ Certification Exam: Core 1 Sample Questions (Q136-Q141):

NEW QUESTION # 136
A technician is troubleshooting a computer that has random BSOD alerts and intermittently freezes during normal use. Performance degrades as the day goes on. No new software or hardware changes have been implemented. Freezing occurs under performance-intensive operations. Which of the following hardware components is most likely at fault?

A. HDD
B. Video card
C. TPM
D. RAM module

Answer: D

Explanation:
Comprehensive and Detailed Step-by-Step Explanation:
Random BSODs (Blue Screen of Death), intermittent freezing, and degraded performance under load are common symptoms of failing or faulty RAM (Random Access Memory). Here's the reasoning:
RAM Module (Correct Answer):
Faulty or failing RAM can cause random BSODs due to memory errors when the system attempts to read or write to corrupted memory locations.
Intermittent freezing, especially under performance-intensive operations, can occur because the CPU relies heavily on RAM for active processing tasks.
Over time, heat generated during usage can exacerbate RAM instability, leading to progressively worse performance throughout the day.
Solution: The technician should run a memory diagnostic tool, such as Windows Memory Diagnostic or MemTest86, to confirm if the RAM is at fault.
Incorrect Options:
A: Video Card: A faulty video card can cause graphical glitches, screen artifacts, or crashes, but it is unlikely to cause system-wide performance degradation and random freezing under normal operations unless the issue is specific to GPU-intensive tasks (e.g., gaming or video rendering).
B: HDD: A failing hard drive can cause system slowdowns and freezing, but it typically produces other symptoms such as read/write errors, boot failures, or clicking sounds. HDD issues do not usually cause BSODs unless critical system files are corrupted.
D: TPM (Trusted Platform Module): A TPM is a hardware-based security module used for encryption and secure authentication. It does not affect performance or cause BSODs or freezing under normal operation.
Key Takeaway:
The symptoms described (random BSODs, intermittent freezing, and degraded performance under load) are most likely caused by faulty or failing RAM. Memory diagnostic tools should be used to confirm the issue.
Reference: CompTIA A+ Core 1 Exam Objectives (220-1201), Domain 5.2 - Troubleshooting problems related to motherboards, RAM, CPUs, and power.

NEW QUESTION # 137
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?

A. Network tap
B. Loopback plug
C. Cable tester
D. Toner probe

Answer: C

Explanation:
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.

NEW QUESTION # 138
Which of the following should a technician use to terminate a Cat 6 cable to a patch panel?

A. Punchdown tool
B. Network tap
C. Crimper
D. Toner probe

Answer: A

Explanation:
Comprehensive and Detailed Explanation From Exact Extract:
A punchdown tool is specifically used to insert wires into a punchdown block in patch panels, which is typical for Cat 6 and similar cabling. It ensures a secure and correct connection by pushing the wire into a metal groove that slices the insulation.
#Reference: "CompTIA A+ Certification All-in-One Exam Guide" by Mike Meyers - Chapter 18, page 758.

NEW QUESTION # 139
A user joins a conference call with a Bluetooth headset. Which of the following has the user created?

A. PAN
B. WAN
C. SAN
D. MAN

Answer: A

Explanation:
B: PAN (Personal Area Network):
A PAN is a network established between devices in close proximity, such as between a smartphone and a Bluetooth headset.
Bluetooth technology is specifically designed for short-range communication, making it a type of PAN.
Incorrect Options:
A: MAN (Metropolitan Area Network): A MAN covers a city or metropolitan area and is not relevant to Bluetooth connections.
C: SAN (Storage Area Network): A SAN is used for large-scale data storage, unrelated to Bluetooth connections.
D: WAN (Wide Area Network): A WAN spans large geographical areas (e.g., the internet) and is not relevant to this scenario.
Key Takeaway: Bluetooth connections, such as those between a headset and a device, create a Personal Area Network (PAN).
Reference: CompTIA A+ Core 1 Exam Objectives (220-1201), Domain 2.1 - Network types and their features.

NEW QUESTION # 140
A management team is concerned about enterprise devices that do not have any controls in place. Which of the following should an administrator implement to address this concern?

A. vpn
B. SSL
C. MFA
D. MDM

Answer: D

Explanation:
Mobile Device Management (MDM) enables administrators to enforce controls on enterprise devices, such as restricting apps, ensuring compliance, and remotely managing security policies.
Why Not B (MFA): Multi-Factor Authentication secures user access but does not control device configurations.
Why Not C (VPN): VPN secures communication but does not enforce device controls.
Why Not D (SSL): SSL secures data in transit but does not provide device management.
CompTIA A+ Exam Reference: Core 2 (220-1102), Section 2.7, device management concepts.

NEW QUESTION # 141
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