The user can most likely make the change of extending the display to a second monitor in the System option in the Windows settings. The System option allows users to manage system settings and features, such as display, sound, notifications, power and storage. The user can extend the display to a second monitor by selecting Display from the System option and then choosing Extend these displays from the Multiple displays drop-down menu. This will allow the user to use both monitors as one large desktop area. Devices is an option in the Windows settings that allows users to add and manage devices connected to the computer, such as printers, scanners, mice and keyboards. Devices is not related to extending the display to a second monitor but to configuring device settings and preferences. Personalization is an option in the Windows settings that allows users to customize the appearance and behavior of their desktop, such as themes, colors, backgrounds, lock screen and screensaver.

Explanation
Installing applications directly from a vendor's website can be risky, as the application may be malicious or fraudulent. Uninstalling the application can help mitigate the issue by removing the source of the problem.

Explanation
"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.

Phishing is the correct answer for this question. Phishing is a type of attack that uses fraudulent emails or other messages to trick users into revealing sensitive information or installing malicious software. Phishing emails often impersonate legitimate entities or individuals and offer incentives or threats to lure users into clicking on malicious links or attachments. In this scenario, the user received a removable USB device in the mail as a prize, which could be a phishing attempt to infect the user's computer with malware or gain access to the user's data. Dumpster diving, tailgating, and evil twin are not correct answers for this question. Dumpster diving is a type of attack that involves searching through trash bins or recycling containers to find discarded documents or devices that contain valuable information. Tailgating is a type of attack that involves following an authorized person into a restricted area without proper identification or authorization. Evil twin is a type of attack that involves setting up a rogue wireless access point that mimics a legitimate one to intercept or manipulate network traffic. References:
* Official CompTIA learning resources CompTIA A+ Core 1 and Core 2, page 25
* [CompTIA Security+ SY0-601 Certification Study Guide], page 1004

In order to connect to a user's laptop via RDP, the technician should open port 3389 on the Windows firewall. This is because RDP uses port 3389 for communication12. The other options are not necessary or relevant for establishing an RDP connection.
* Confirming the user can ping the default gateway is not required for RDP, as it only tests the network connectivity between the user's laptop and the router. RDP works over the internet, so the technician should be able to ping the user's laptop directly using its IP address3.
* Changing the IP address on the user's laptop is not needed for RDP, as long as the IP address is valid and not conflicting with another device on the network. The user's laptop has a valid IP address of
192.168.0.45, which belongs to the same subnet as the gateway (192.168.0.1) and the subnet mask (255.255.255.0)4.
* Changing the subnet mask on the user's laptop is not required for RDP, as long as the subnet mask matches the network configuration. The user's laptop has a correct subnet mask of 255.255.255.0, which defines a network with 254 possible hosts4.
References:
1: [What is RDP and How Does It Work? - CompTIA] 2: CompTIA A+ Certification Exam Core 2 Objectives
- CompTIA 3: [Ping (networking utility) - Wikipedia] 4: [IP address - Wikipedia] : What is RDP and How Does It Work? - CompTIA : CompTIA A+ Certification Exam Core 2 Objectives - CompTIA : Ping (networking utility) - Wikipedia) : IP address - Wikipedia