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220-1201 Test Braindumps, Review 220-1201 Guide

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CompTIA A+ Certification Exam: Core 1 Sample Questions (Q72-Q77):

NEW QUESTION # 72
Which of the following display technologies typically provides the highest contrast?

A. OLED
B. VA
C. IPS
D. TN

Answer: A

Explanation:
OLED (Organic Light-Emitting Diode) technology can turn off individual pixels completely, producing
"true black" and resulting in the highest contrast ratios compared to other display types.
From CompTIA A+ 220-1101 Official Study Guide, Objective 3.1 - Display types and features:
"OLED displays provide superior contrast by emitting light per pixel, allowing perfect black and extremely high contrast ratios." Verified Source:
* CompTIA A+ Core 1 (220-1101) Official Study Guide, Chapter 3: Display Technologies
* CompTIA Exam Objectives 220-1101, Domain 3.1

NEW QUESTION # 73
When turning on a workstation, a technician observes the following message:
"Bootable device not found."
The technician verifies the correct boot order in the BIOS. Which of the following steps should the technician take next?

A. Reseat the RAM.
B. Run HDD diagnostics.
C. Reformat the HDD.
D. Replace the HDD.

Answer: B

Explanation:
If the system reports"Bootable device not found", and the BIOS is configured correctly, the next step is torun diagnostics on the hard driveto check for physical or logical failure. It could be a sign of afailing drive or corrupt boot sector.
Option A:Reformatting the drive would erase data - not a diagnostic step.
Option C:RAM does not affect whether a drive is bootable.
Option D:Replacing the drive should only be doneafter diagnostics confirm failure.
CompTIA A+ Core 1 Exam Objective Reference:
Objective 3.5: Given a scenario, troubleshoot problems related to storage devices.

NEW QUESTION # 74
A user can connect their laptop to the internet in the main office. However, when the user places the laptop on top of a motor on the factory floor, there is no internet connectivity. Which of the following is the most likely cause of this issue?

A. Insufficient power levels
B. Jitter
C. External interference
D. High latency

Answer: C

Explanation:
Large electrical motors can emit electromagnetic interference (EMI), which can disrupt wireless signals and prevent connectivity.
From CompTIA A+ 220-1101 Official Study Guide, Objective 2.4 - Wireless troubleshooting:
"Sources of external interference such as motors or other electrical equipment can disrupt wireless network connectivity." Verified Source:
* CompTIA A+ Core 1 (220-1101) Official Study Guide, Chapter 2: Networking Troubleshooting
* CompTIA Exam Objectives 220-1101, Domain 2.4

NEW QUESTION # 75
A user reports poor performance on the application server.
INSTRUCTIONS
Click on Server 1 and Server 2 and review the information presented in each chart to determine which drives need to be replaced.
Select the appropriate replacement drive that should be used, for the least performance degradation to the server.
If at any time you would like to bring back the initial state of the simulation, please click the Reset All button.

Answer:

Explanation:
See the detailed solution in explanation below.
Explanation:
The degraded status on Server 2 indicates a RAID-5 issue, typically due to a failed or failing drive. In RAID-5 configurations, when one drive fails, the system can still operate but with reduced performance as parity data is used to rebuild missing data on-the-fly.
Recommended Replacement Drive:
To minimize performance degradation, the replacement drive should be:
SAS HDD with the same specifications (64KB stripe size, no read-ahead, and write-back policy).
Matching the configuration exactly ensures seamless integration and optimizes recovery speed in the RAID-5 array.
In RAID-5, degraded performance is expected when one drive fails, as parity data needs to rebuild missing information during each read/write process. Replacing the failed drive restores the RAID array to optimal status, reducing the load on existing drives and returning the system to normal read/write performance. The write-back policy and disabled disk cache settings are designed to reduce latency and increase efficiency, essential for handling real-time applications.
A user reports poor performance on the
application server.
INSTRUCTIONS
Click on Server 1 and Server 2 and review
the information presented in each chart to
determine which drives need to be replaced.
Select the appropriate replacement drive
that should be used, for the least
performance degradation to the server.
A computer server with many black and silver parts AI-generated content may be incorrect.A computer server with many black boxes Description automatically generated with medium confidence

A screen shot of a computer AI-generated content may be incorrect.A screen shot of a computer Description automatically generated

A computer screen shot of a computer AI-generated content may be incorrect.A computer screen shot of a computer Description automatically generated

A screenshot of a computer AI-generated content may be incorrect.A screenshot of a computer Description

automatically generated
A screenshot of a computer AI-generated content may be incorrect.A screenshot of a computer Description

automatically generated

NEW QUESTION # 76
Which of the following types of RAM is typically used in servers?

A. DDR3
B. Rambus
C. ECC
D. SODIMM

Answer: C

Explanation:
ECC (Error-Correcting Code) RAM is commonly used in servers to provide error detection and correction, improving reliability in critical systems. It is designed to detect and correct single-bit errors, ensuring data integrity in environments where stability is paramount.
Option A (SODIMM): Incorrect. SODIMM is typically used in laptops, not servers.
Option B (Rambus): Incorrect. Rambus is an outdated RAM type and not commonly used today.
Option C (DDR3): Incorrect. While DDR3 is a type of RAM, it is not specific to servers and does not provide error correction.
References:
CompTIA A+ Core 1 Objectives: 3.2 (RAM types and their uses)

NEW QUESTION # 77
......

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