CompTIA 220-1101 Practice Test - Questions Answers, Page 39

The most likely answer is C. The pen batteries need recharging.

An active touch pen is a stylus that uses a battery to power features such as pressure sensitivity, buttons, or Bluetooth connectivity. If the pen batteries are low or depleted, the pen may stop working or become inaccurate1. To fix this issue, you should recharge the pen batteries using the provided charger or cable, or replace them with new ones if they are not rechargeable1.

The other options are less likely to cause the issue. A scratched tablet screen may affect the touch sensitivity, but it should not affect the pen functionality. The pen software may need updating to improve performance or compatibility, but it should not stop the pen from working altogether.

Software updates may disable the pen if they change the settings or drivers, but this can be fixed by re-enabling the pen or reinstalling the drivers2.

Reference:

1: Troubleshoot your Surface Pen - Microsoft Support

2: Windows 10 touch screen: active pen works, finger does not - Super User

The correct answers are D. The overall IT cost goes down and F. Upgrading applications is easier.

Application virtualization is a technology that allows users to run applications without installing them on their devices. The applications are stored and executed on a remote server, and the users can access them through a network connection. Application virtualization has several benefits, such as12:

• The overall IT cost goes down: Application virtualization reduces the need for hardware, software, and maintenance costs, as the applications are centralized and managed on the server side. This also saves energy and space, as fewer physical machines are required to run the applications. Additionally, application virtualization can reduce licensing costs, as the applications can be delivered on-demand and based on usage.

• Upgrading applications is easier: Application virtualization simplifies the process of updating and patching applications, as the changes can be made on the server side and pushed to the users instantly. This eliminates the need for manual installation and configuration on each device, and ensures that all users have the latest version of the applications.

Other benefits of application virtualization include123:

• Allows the running of legacy apps: Application virtualization can enable users to run applications that are developed for older or incompatible operating systems, such as Windows 7 or XP. This can extend the lifespan of legacy applications and avoid compatibility issues.

• Enables cross-platform operations: Application virtualization can allow users to run applications that are designed for different platforms, such as Windows apps on iOS, Android, macOS, or Chrome OS. This can increase the accessibility and mobility of the applications and enhance the user experience.

• Improves security and compliance: Application virtualization can isolate the applications from the underlying operating system and hardware, preventing malware or unauthorized access from affecting them. This can also protect the data and settings of the applications from being tampered with or lost. Furthermore, application virtualization can help enforce compliance policies and regulations, as the applications can be controlled and monitored by the server.

Reference:

1: 5 Benefits of Virtualization - IBM Blog

2: Benefits of Application Virtualization - AppsAnywhere

3: What is Application Virtualization? | VMware Glossary

The best solution for the developer is D. Sandbox environment.

Client-side virtualization is a technology that allows users to run multiple operating systems and applications on the same device, without affecting the host system or the network1. A sandbox environment is a type of client-side virtualization that creates a secure and isolated space for testing, debugging, or experimenting with code, without risking any damage or interference to the rest of the system2.

A sandbox environment can provide several benefits for the developer, such as23:

• It can simulate different scenarios and conditions for the code, such as different operating systems, browsers, devices, network settings, etc.

• It can protect the code from external threats, such as malware, hackers, or unauthorized access.

• It can prevent the code from affecting other applications or processes on the device or the network, such as consuming resources, causing errors, or leaking data.

• It can allow the developer to easily revert any changes or restore the original state of the system, if something goes wrong.

Therefore, a sandbox environment can provide the best solution for the developer who wants to write code in a setting isolated from other infrastructure to avoid negative impacts of experimental code.

Reference:

1: Client-side Virtualization – CompTIA A+ 220-1001 – 4.2

2: What is a Sandbox Environment? | VMware Glossary

3: What is Sandbox Testing? - Definition from Techopedia

The first thing that the technician should do to diagnose the issue is A. Check the keyboard layout.

The keyboard layout is the arrangement of the keys and symbols on the keyboard, which can vary depending on the language, region, or standard. If the keyboard layout is not set correctly, it can cause the keys to produce different characters than expected. For example, if the keyboard layout is set to French, pressing the key for @ will produce à instead.

To check and change the keyboard layout, the technician can follow these steps:

• On Windows 10, click on the Start menu and select Settings.

• Click on Time & Language and then on Language.

• Under Preferred languages, click on the current language and then on Options.

• Under Keyboards, check if the keyboard layout matches the physical keyboard. If not, click on

Add a keyboard and select the correct layout. Alternatively, click on Remove to delete any unwanted layouts.

• To switch between keyboard layouts, use the shortcut Windows key + Space bar.

Checking the keyboard layout can help identify and fix the issue quickly and easily, without requiring any hardware or software changes. Therefore, it is the best first step to diagnose the issue.

Reference:

: How to change your keyboard layout on Windows 10 PC | Windows Central : How to type French accents on a PC - FrenchCrazy

The most likely reason is A. Missing Wi-Fi adapter.

A Wi-Fi adapter is a device that allows a computer to connect to a wireless network. A legacy workstation may not have a built-in Wi-Fi adapter, or it may have an outdated or incompatible one. If the workstation does not have a Wi-Fi adapter, it will not be able to detect or access any wireless networks, regardless of the location, signal strength, or configuration of the network.

To fix this issue, the technician can install a Wi-Fi adapter on the workstation, either internally or externally. An internal Wi-Fi adapter is a card that fits into a slot on the motherboard, while an external Wi-Fi adapter is a device that plugs into a USB port. The technician should choose a Wi-Fi adapter that is compatible with the workstation's operating system, hardware, and wireless standards .

The other options are less likely to be the reason for the issue. A Wi-Fi AP replacement means changing the wireless access point that provides the network connection. This may affect the network name, password, or settings, but it should not prevent the workstation from detecting any wireless networks. A hidden Wi-Fi SSID means that the network name is not broadcasted publicly, but it can still be accessed by entering the name manually. A hidden Wi-Fi SSID may make it harder to find the network, but it should not prevent the workstation from detecting other wireless networks. An incorrect Wi-Fi channel means that the network is using a frequency band that is crowded or interfered by other devices. This may affect the network performance or stability, but it should not prevent the workstation from detecting any wireless networks.

Reference:

: How to Add Wi-Fi to a Desktop Computer - How-To Geek

: How to Choose a Wireless Adapter for Your Computer - Lifewire

: Troubleshooting Wireless Network Connections - Intel

The next thing that the technician should investigate is D. Radio frequency.

Radio frequency is the range of electromagnetic waves that are used to transmit wireless signals.

Different devices and networks use different radio frequencies, such as 2.4 GHz or 5 GHz, to communicate with each other. If there are multiple devices or networks using the same or overlapping radio frequencies, they can interfere with each other and cause Wi-Fi connection issues, such as intermittent disconnections, slow speeds, or poor quality .

To fix this issue, the technician can try changing the radio frequency or channel of the router or the laptop, to avoid interference from other sources. The technician can also use a tool such as Wi-Fi Analyzer to scan the nearby wireless networks and find the best frequency or channel to use.

Alternatively, the technician can move the router or the laptop to a different location, away from potential sources of interference, such as cordless phones, microwaves, Bluetooth devices, or other routers .

The other options are less likely to be the reason for the issue. Firewall settings are software configurations that control the network traffic and security of a device. They may block some websites or applications from accessing the internet, but they should not affect the Wi-Fi connection itself. MAC address filter is a feature that allows the router to restrict access to specific devices based on their MAC addresses, which are unique identifiers for network interfaces. If the MAC address filter is enabled and the laptop's MAC address is not on the allowed list, it will not be able to connect to the Wi-Fi network at all, not intermittently. Number of connected devices is the amount of devices that are using the same Wi-Fi network at the same time. This may affect the network performance or bandwidth, but it should not cause intermittent disconnections, unless the network is overloaded or unstable.

Reference:

: How To Fix WiFi Connection Problems - Help Desk Geek

: How to Fix Your WiFi Connection Problems - Lifewire

: Wi-Fi Analyzer - Apps on Google Play

SAS stands for Serial Attached SCSI, which is a bit serial interface successor to SCSI sponsored by ANSI and introduced in 20041. SAS is the most common interface for enterprise HDDs, especially those with high performance and high reliability requirements, such as 15,000rpm drives23. SAS offers faster data transfer speeds, lower power consumption, and better scalability than other interfaces1.

One of the possible causes of the error message "No Source Found" is that the projector is not receiving any signal from the connected device, such as a laptop1. This could be due to an incorrect input source selected on the projector or an improper display setting on the laptop. Therefore, the first actions that the technician should take are to verify the projector settings and make sure the correct input is selected, and to check the laptop display settings and set them to extend/duplicate23.

One of the possible causes of the error message "No input source" is that the LCD projector is not receiving any signal from the connected device, such as a laptop1. This could be due to a loose or faulty cable or connector, or an incorrect input source selected on the projector2. Therefore, the first troubleshooting step that the technician should take is to check the physical cabling and make sure it is properly connected and secured12.