CompTIA Updated 220-1101 Exam Questions and Answers by ralphie

The disk failure notice during startup indicates that one or more disks in the RAID array have failed. The machine still seems to startup into Windows but at a much slower speed because the RAID 5 configuration can tolerate one disk failure and still operate, but with reduced performance and reliability. The technician most likely needs to rebuild the RAID, which means replacing the failed disk(s) and restoring the data from the parity information. Reinstalling the HDD drivers will not fix the disk failure. Replacing the failed drivers is not a valid option, as drivers are software, not hardware. Restarting the system will not fix the disk failure either. References: https://www.comptia.org/blog/what-is-raid-0-1-5-6-10

OLED (Organic Light Emitting Diode) displays have lower power consumption than LCD (Liquid Crystal Display) displays because they do not require a backlight to produce light. Each pixel in an OLED display can emit its own light, which also allows for higher contrast and finer grayscale levels. However, OLED displays are more prone to color degradation over time than LCD displays, which use filters to create colors. Verified References: OLED vs LCD: How to choose the right display for your phone.

The most likely use case for client-side virtualization for a software developer is D. Testing on different operating systems.

Client-side virtualization is a type of virtualization that allows a single physical machine, such as a laptop or a desktop, to run multiple virtual machines, each with its own operating system and applications. Client-side virtualization can provide several benefits, such as:

• Increasing the application performance by allocating more resources to the virtual machine that runs the application.
• Enhancing the security of physical machines by isolating the virtual machines from each other and from the host machine, and preventing malware or attacks from spreading or affecting the data.
• Reducing the operational costs by consolidating multiple physical machines into one, and saving on hardware, software, and energy expenses.

However, the most likely use case for client-side virtualization for a software developer is testing on different operating systems. This means that a software developer can use client-side virtualization to create and run different virtual machines with different operating systems, such as Windows, Linux, or Mac OS, and test how their software works and performs on each of them. This can help the software developer to ensure the compatibility, functionality, and quality of their software across different platforms and environments. It can also help the software developer to debug and fix any issues or errors that may arise on different operating systems.

For more information about client-side virtualization and its use cases, you can refer to the following web search results: [What Is Client-Side Virtualization?], [Client-Side Virtualization: Benefits and Challenges], [How Client-Side Virtualization Can Help Developers].

The correct answer is D. PAN.

A PAN, or Personal Area Network, is a type of network that connects devices within a short range, usually less than 10 meters, and is used by an individual. A PAN can be wireless or wired, and it can enable data transmission between devices without requiring an internet connection. A PAN can also be connected to a LAN or a higher level network, where one device acts as a gateway.

A Bluetooth hotspot is an example of a wireless PAN, where a device such as a smartphone or a laptop can create a network with other Bluetooth-enabled devices nearby. A Bluetooth hotspot can allow devices to share files, access the internet, or use peripherals such as printers or speakers.

A SAN, or Storage Area Network, is a type of network that connects storage devices such as hard disks, tape drives, or optical drives to servers. A SAN provides high-speed data transfer and access to large amounts of data. A SAN is usually used in data centers or enterprises that need to store and manage huge volumes of data.

A WAN, or Wide Area Network, is a type of network that connects devices over a large geographical area, such as across cities, countries, or continents. A WAN can use different technologies and media to transmit data, such as fiber-optic cables, satellite links, or radio waves. A WAN can also consist of multiple LANs or other types of networks. The internet is the largest example of a WAN.

A LAN, or Local Area Network, is a type of network that connects devices within a limited area, such as within a building or a campus. A LAN can use wired or wireless technologies to transmit data, such as Ethernet cables, Wi-Fi routers, or switches. A LAN can enable devices to share resources, such as printers, scanners, or files.

For more information about the types of networks and their differences, you can refer to the following web search results: 11 Types of Networks: Understanding the Differences, Types of Computer Networks, Types of network - Introduction to networks.