CompTIA Updated 220-1101 Exam Questions and Answers by dean

Speed is the most important consideration. Striping without parity, also known as RAID 0, is a RAID configuration that splits data across multiple disks without any redundancy. This improves the performance of read and write operations, as multiple disks can work in parallel. However, this also increases the risk of data loss, as any disk failure will result in losing all data on the array. Therefore, striping without parity is suitable for situations where speed is prioritized over reliability. According to the CompTIA Core1 objectives, one of the advantages of RAID 0 is increased speed. A research paper on RAID performance also confirms that RAID 0 has the highest throughput among all RAID levels.

HDD fragmentation is a condition where the data on a hard disk drive (HDD) is not stored in contiguous clusters, but scattered across different physical locations on the disk. This happens when files are created, modified, or deleted over time, leaving gaps and fragments of data on the disk. HDD fragmentation can affect the performance of the PC, especially when accessing large files that require more disk operations to read or write12.

According to some web search results123, some signs and symptoms of a heavily fragmented HDD are:

•Longer load times for files and programs

•Graphics-heavy apps and games take too long to load new windows or process new environments

•Reduced disk space and efficiency

•Increased disk noise and temperature

•Accelerated disk wear and failure

To fix this issue, the user can use a tool called Disk Defragmenter, which is built-in in Windows. Disk Defragmenter rearranges the fragmented data on the HDD so that it is stored in contiguous clusters, improving the disk performance and reliability1. Disk Defragmenter can run on a schedule or manually by following these steps1:

•Open Disk Defragmenter by clicking the Start button. In the search box, type Disk Defragmenter, and then, in the list of results, click Disk Defragmenter.

•Under Current status, select the disk you want to defragment.

•To determine if the disk needs to be defragmented or not, click Analyze disk. If you’re prompted for an administrator password or confirmation, type the password or provide confirmation.

•Once Windows is finished analyzing the disk, you can check the percentage of fragmentation on the disk in the Last Run column. If the number is above 10%, you should defragment the disk.

•Click Defragment disk. If you’re prompted for an administrator password or confirmation, type the password or provide confirmation.

•Disk Defragmenter might take from several minutes to a few hours to finish, depending on the size and degree of fragmentation of your hard disk. You can still use your computer during the defragmentation process.

MMS (Multimedia Messaging Service) is a type of text message that can include images, videos, audio, or other media files. Unlike SMS (Short Message Service), which only uses cellular networks, MMS requires mobile data service to send and receive messages. Therefore, if the mobile data service is disabled on the smartphone, the user will not be able to send or receive MMS messages, even if they can make and receive voice calls using the cellular network.

References

•What is MMS messaging? How to send and receive MMS messages on your iPhone or Android device

•Why Can’t I Send or Receive MMS Messages?

•The Official CompTIA A+ Core 1 Student Guide (Exam 220-1101), page 349

GPS (Global Positioning System) is a feature that allows a phone to determine its location by receiving signals from satellites. A maps application relies on GPS to provide accurate directions and navigation. If GPS is turned off or not working properly, the maps application may not function as expected.

The other options are not relevant to the issue. Airplane mode is a setting that disables all wireless communication on a phone, including cellular, Wi-Fi, Bluetooth, and GPS. However, since the representative runs a speed test and gets ~10Mbps in both directions, it means that airplane mode is not enabled. PRL (Preferred Roaming List) is a database that contains information about the cellular towers and networks that a phone can connect to. Updating the PRL can improve the phone’s signal strength and coverage, but it does not affect the maps application. LTE (Long Term Evolution) is a standard for high-speed wireless communication on mobile devices. It is related to the cellular data speed and quality, but not to the maps application.

To troubleshoot the issue, the technician should check the GPS settings on the phone and make sure that it is turned on and has a clear view of the sky. The technician should also verify that the maps application has permission to access the GPS location. If the problem persists, the technician may suggest resetting the network settings, updating the phone’s software, or contacting the maps application’s support team.

References:

• CompTIA A+ Certification Exam Core 1 Objectives1
• The Official CompTIA A+ Core 1 Student Guide (Exam 220-1101) eBook2
• How to Fix Google Maps When It’s Not Working on Android - MUO3
• Apple Maps Not Working? 5 Fixes to Get You Back on the Road (2023)4