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.

A hardware token is a physical device that provides an additional layer of security for software authorization. Some specialized software may require a hardware token to be attached to the workstation in order to run. A hardware token may contain a cryptographic key, a password, or a one-time code that verifies the user’s identity or permission. Installing the software in safe mode, installing OS updates, and restarting the workstation after installation are not likely to resolve the issue of software authorization.

The correct answer is C. Choose what closing the lid does. This option allows you to configure how the laptop behaves when you close the lid, such as whether it goes to sleep, hibernates, shuts down, or does nothing. To access this option, you can follow these steps :

Go to Settings > System > Power & sleep.

Click on Additional power settings on the right side.

Click on Choose what closing the lid does on the left side.

Under When I close the lid, select Do nothing for both On battery and Plugged in.

Click on Save changes.

This will prevent the laptop from going to sleep when you close the lid while it is connected to the docking station and the external monitor.

Hibernate, sleep/suspend, and turn on fast startup are not the options that should be configured to fix the issue. Hibernate and sleep/suspend are both power-saving modes that allow you to resume your work without losing any data. However, they also turn off the display and other components of the laptop, which means you will not be able to use the external monitor when the laptop is closed. Turn on fast startup is a feature that reduces the boot time of Windows by saving some system information to a file when you shut down. It does not affect how the laptop behaves when you close the lid .

 Instructing the user to disconnect the Wi-Fi is the first action the technician should take if they suspect a rogue access point. A rogue access point is an unauthorized wireless network that could be used to intercept or manipulate network traffic, compromise security, or launch attacks. Disconnecting the Wi-Fi would prevent further exposure or damage to the user’s device or data. Restarting the wireless adapter, launching the browser, or running the antivirus software are possible actions to take after disconnecting the Wi-Fi, but they are not as urgent or effective as the first step. References:

Official CompTIA learning resources CompTIA A+ Core 1 and Core 2, page 22

CompTIA A+ Core 1 (220-1101) and Core 2 (220-1102) Cert Guide, page 456

Personalization is a Windows 10 setting that allows a user to modify the desktop wallpaper, as well as other aspects of the appearance and behavior of the desktop, such as colors, themes, sounds, etc. Apps is a Windows 10 setting that allows a user to manage the installed applications and their features. Updates is a Windows 10 setting that allows a user to check for and install the latest updates for the OS and other components. Display is a Windows 10 setting that allows a user to adjust the screen resolution, brightness, orientation, etc. Verified References: https://www.comptia.org/blog/windows-10-settings https://www.comptia.org/certifications/a

Shoulder surfing is a threat that involves someone looking over another person’s shoulder to observe their screen, keyboard, or other sensitive information. Shoulder surfing can be used to steal passwords, personal identification numbers (PINs), credit card numbers, or other confidential data. The use of a privacy screen on a computer can help prevent shoulder surfing by limiting the viewing angle of the screen and making it harder for someone to see the screen from the side or behind. Impersonation, whaling, and tailgating are not threats that can be prevented by using a privacy screen on a computer.

Rollback refers to the steps to be taken if an issue occurs during a change implementation. It means restoring the system to its previous state before the change was applied, using backup data or configuration files. It can minimize the impact and downtime caused by a failed change. Testing refers to the steps to be taken before a change implementation, to verify that the change works as expected and does not cause any errors or conflicts. Risk refers to the potential negative consequences of a change implementation, such as data loss, security breach, performance degradation, etc. Acceptance refers to the steps to be taken after a change implementation, to confirm that the change meets the requirements and expectations of the stakeholders. Verified References: https://www.comptia.org/blog/change-management-process https://www.comptia.org/certifications/a

A restore point is a snapshot of the system settings and configuration at a specific point in time2. Creating a restore point before modifying the registry keys allows the technician to revert the system back to a previous state if something goes wrong or causes instability2. Updating the anti-malware software, running the PC in safe mode, and rolling back the system updates are not necessary steps before modifying the registry keys.

Disk Cleanup is a tool that can free up some space on a system drive that is nearly full. It can delete temporary files, cached files, recycle bin files, old system files and other unnecessary data. Resource Monitor is a tool that shows the network activity of each process on a Windows machine. Disk Defragment is a tool that optimizes the performance of a hard drive by rearranging the data into contiguous blocks. Disk Management is a tool that allows creating, formatting, resizing and deleting partitions on a hard drive. Verified References: https://www.comptia.org/blog/how-to-use-disk-cleanup https://www.comptia.org/certifications/a

An ESD strap, also known as an antistatic wrist strap, is a device that prevents electrostatic discharge (ESD) from damaging sensitive electronic components such as RAM. ESD is the sudden flow of electricity between two objects with different electrical charges, which can cause permanent damage or malfunction to electronic devices. An ESD strap connects the technician’s wrist to a grounded surface, such as a metal case or a mat, and equalizes the electrical potential between the technician and the device. Battery backup, thermal paste, and consistent power are not devices that can protect against ESD.

AutoRun is a feature of Windows that automatically executes a program or file when a removable media such as a USB drive is inserted into the computer. Disabling AutoRun can prevent a USB drive containing malicious software from covertly installing malware on a workstation, as it would require the user to manually open the drive and run the file. Restricting user permissions can also prevent a USB drive containing malicious software from covertly installing malware on a workstation, as it would limit the user’s ability to execute or install unauthorized programs or files. Installing a host-based IDS, restricting log-in times, enabling a BIOS password, updating the password complexity, and updating the antivirus definitions are not actions that can directly prevent this incident from happening again.

A secondary account and recovery code are used to reset the primary account and password on an iPhone after it has been locked due to failed login attempts. Fingerprint, pattern, facial recognition and PIN code are biometric or numeric methods that can be used to unlock an iPhone, but they are not helpful if the device has been permanently locked. Verified References: https://support.apple.com/en-us/HT204306 https://www.comptia.org/certifications/a

A full backup does not depend on any previous backups, unlike differential or incremental backups, which only save the changes made since the last backup. A synthetic backup is a type of full backup that combines an existing full backup with incremental backups to create a new full backup, but it still requires multiple backup sets to recover data. Therefore, a full backup is the most suitable for the payroll workstation that needs to have its data readily available and recoverable. You can learn more about the differences between full, differential, incremental, and synthetic backups from this article.

Activation Lock is a feature that prevents anyone from erasing or activating an iOS device without the owner’s Apple ID and password. If a corporate-owned iOS device is linked to an employee’s Apple ID, it will have an Activation Lock issue when the employee leaves the company or forgets their Apple ID credentials.