CompTIA 220-1102 - CompTIA A+ Certification Core 2 Exam

The correct answer is A. Amount of system RAM. A Type 2 hypervisor is a virtualization software that runs on top of a host operating system, which means it shares the system resources with the host OS and other applications. Therefore, increasing the amount of system RAM can improve the performance of the hypervisor and the virtual machines running on it. RAM is used to store data and instructions that are frequently accessed by the CPU, and having more RAM can reduce the need for swapping data to and from the storage device, which is slower than RAM.

NIC performance, storage IOPS, and dedicated GPU are not as relevant for improving the hypervisor’s performance in this scenario. NIC performance refers to the speed and quality of the network interface card, which is used to connect the computer to a network. Storage IOPS refers to the number of input/output operations per second that can be performed by the storage device, which is a measure of its speed and efficiency. Dedicated GPU refers to a separate graphics processing unit that can handle complex graphics tasks, such as gaming or video editing. These components may affect other aspects of the computer’s performance, but they are not directly related to the hypervisor’s ability to compile new source code.

The correct answer is D. Force Quit. Force Quit is a macOS feature that allows users to close an application that has stopped responding. To use Force Quit, users can press and hold Option (or Alt), Command, and Esc (Escape) keys together, or choose Force Quit from the Apple menu in the corner of the screen. A Force Quit window will open, where users can select the application that they want to close and click Force Quit123.

References and Explanation:

The web search results provide information about how to force an app to quit on Mac using different methods, such as keyboard shortcuts, mouse clicks, or menu options. The results also explain what to do if the app cannot be forced to quit or if the Mac does not respond.

The first result1 is from the official Apple Support website and provides detailed instructions and screenshots on how to force an app to quit on Mac using the keyboard shortcut or the Apple menu. It also explains how to force quit the Finder app and how to restart or turn off the Mac if needed.

The second result2 is from the same website but for a different region (UK). It has the same content as the first result but with some minor differences in spelling and wording.

The third result4 is from a website called Lifehacker that provides tips and tricks for various topics, including technology. It compares how to close a program that is not responding on different operating systems, such as Windows, Mac, and Linux. It briefly mentions how to force quit an app on Mac using the keyboard shortcut or the mouse click.

The fourth result3 is from a website called Parallels that provides software solutions for running Windows on Mac. It focuses on how to force quit an app on Mac using the keyboard shortcut and provides a video tutorial and a screenshot on how to do it. It also suggests some alternative ways to close an app that is not responding, such as using Activity Monitor or Terminal commands.

RDP stands for Remote Desktop Protocol and it is a protocol that allows a user to remotely access and control another computer over a network. A technician can use RDP to assist a user who is in a different building but on the same network by connecting to the user’s computer and viewing their screen, keyboard, and mouse. AAA, SSH, and VPN are not protocols that can be used to assist a user with a program feature.

Rolling back the updates is the best way to resolve the issue of slow performance caused by installing the latest Windows security patch. This can be done by using the System Restore feature or by uninstalling the specific update from the Control Panel. Rebuilding user profiles, restarting the services and performing a system file check are not likely to fix the issue, since they do not undo the changes made by the update. Verified References: https://www.comptia.org/blog/how-to-roll-back-windows-updates https://www.comptia.org/certifications/a

Group Policy is a feature of Windows that allows administrators to centrally manage and apply policies and settings to computers and users on a domain. Group Policy can be used to create user profiles that include home directories and network printers for several new users, as well as other configurations such as security settings, desktop preferences, and software installation. Group Policy can save time and effort for the administrator by applying the same settings to multiple users at once. Access control, authentication application, and folder redirection are not the most efficient ways to create user profiles that include home directories and network printers for several new users.

netstat is a tool that can be used to investigate connections on a Windows machine. It displays information about the active TCP connections, listening ports, routing tables, network statistics, etc. nslookup is a tool that can be used to query DNS servers and resolve domain names to IP addresses. net use is a tool that can be used to connect or disconnect network drives or printers. net user is a tool that can be used to create or modify user accounts on a Windows machine. Verified References: https://www.comptia.org/blog/what-is-netstat https://www.comptia.org/certifications/a

The correct answer is B. Power Options. The Power Options utility in the Control Panel allows you to configure various settings related to how your computer uses and saves power, such as the power plan, the sleep mode, the screen brightness, and the battery status. To access the Power Options utility, you can follow these steps:

Go to Control Panel > Hardware and Sound > Power Options.

Click on Change plan settings for the power plan you are using.

Click on Change advanced power settings.

Expand the USB settings category and then the USB selective suspend setting subcategory.

Set the option to Disabled for both On battery and Plugged in.

Click on OK and then on Save changes.

This will prevent the operating system from suspending the USB devices to save power .

System, Devices and Printers, and Ease of Access are not the utilities that should be used to configure the setting. System is a utility that provides information about your computer’s hardware and software, such as the processor, memory, operating system, device manager, and system protection. Devices and Printers is a utility that allows you to view and manage the devices and printers connected to your computer, such as adding or removing devices, changing device settings, or troubleshooting problems. Ease of Access is a utility that allows you to customize your computer’s accessibility options, such as the narrator, magnifier, high contrast, keyboard, mouse, and speech recognition. None of these utilities have any option to configure the USB selective suspend setting.

The correct answers are D. Restricting log-in times and E. Enabling a screen lock. These are the security measures that can be used to prevent the computers from being accessed by unsupervised contractors in the building.

Restricting log-in times means setting a policy that allows users to log in only during certain hours, such as the regular working hours of the company. This will prevent unauthorized access by contractors who work at night1.

Enabling a screen lock means setting a policy that requires users to enter a password or a PIN to unlock their screens after a period of inactivity. This will prevent unauthorized access by contractors who might try to use the computers when the users are away2.

1: CompTIA A+ Certification Exam: Core 2 Objectives, page 19, section 2.3. 2: CompTIA A+ Certification Exam: Core 2 Objectives, page 20, section 2.4.

Chain of custody is a process that helps ensure that a piece of evidence extracted from a PC is admissible in a court of law. Chain of custody refers to the documentation and tracking of who handled, accessed, modified, or transferred the evidence, when, where, why, and how. Chain of custody can help establish the authenticity, integrity, and reliability of the evidence, as well as prevent tampering, alteration, or loss of the evidence. Data integrity form, valid operating system license, and documentation of an incident are not processes that can ensure that a piece of evidence extracted from a PC is admissible in a court of law.

The user can enable speech recognition on a PC in the Ease of Access settings tool. To set up Speech Recognition on a Windows PC, the user should open Control Panel, click on Ease of Access, click on Speech Recognition, and click the Start Speech Recognition link. Language settings can be used to change the language of the speech recognition feature, but they will not enable the feature. System settings can be used to configure the hardware and software of the PC, but they will not enable the speech recognition feature. Personalization settings can be used to customize the appearance and behavior of the PC, but they will not enable the speech recognition feature1

Open up ease of access, click on speech, then there is an on and off button for speech recognition.

This is because remote wipe allows the data on the smartphone to be erased remotely, which helps to ensure that sensitive data does not fall into the wrong hands.

The Linux command used to install an application is sudo. The sudo command allows users to run programs with the security privileges of another user, such as the root user. This is necessary to install applications because it requires administrative privileges1

 Processes tab in Task Manager would contain the information a technician would use to identify the cause of this issue. The Processes tab in Task Manager displays all the processes running on the computer, including the CPU and memory usage of each process. The technician can use this tab to identify the process that is causing the hard drive activity light to remain lit and the performance degradation1

The technician should provide the user with a unique ticket number that can be referenced on subsequent calls to make sure the ticket is associated with the correct user. This is because registering the ticket with a unique user identifier, having the user provide a callback phone number to be added to the ticket, or assigning the ticket to the department’s power user will not ensure that the ticket is associated with the correct user2.

The user should install and run Linux and the required application as a virtual machine installed under the Windows OS. This solution would allow for parallel execution of the Linux application and Windows applications2.

The MOST efficient solution that allows for parallel execution of the Linux application and Windows applications is to install and run Linux and the required application as a virtual machine installed under the Windows OS. This is because it allows you to run both Linux and Windows together without the need to keep the Linux portion confined to a VM window3.

"The user thought the company-provided antivirus software would prevent this issue."

The most likely steps to resolve the issue are to deploy an ad-blocking extension to the browser and perform a reset on the user’s web browser. Ad-blocking extensions can help to prevent pop-ups and other unwanted content from appearing in the browser, and resetting the browser can help to remove any malicious extensions or settings that may be causing the issue.

The technician should verify bad sectors on the user’s computer by running chkdsk on the drive as the administrator. Chkdsk (check disk) is a command-line utility that detects and repairs disk errors, including bad sectors. It runs a scan of the disk and displays any errors that are found

Since the systems administrator has validated that the workstation functions normally and other users operate on the same workstation without any issues, the next step should be to rebuild the user’s profile. This will ensure that any corrupted files or settings are removed and the user’s profile is restored to its default state.

 This is because a PIN is a fast and secure method of logging in to laptops, and it is more secure than a password because it is not susceptible to keyloggers.

Disk encryption should be used to secure the workstation in case of theft. Disk encryption can help to protect data on the hard drive by encrypting it so that it cannot be accessed without the correct encryption key.