DNS (domain name system) is a protocol that translates domain names to IP addresses. If the computer has an incorrect DNS address assigned, it will not be able to resolve the domain names of web-based applications and access them. A firewall, a VLAN (virtual local area network) and a browser cache are not the most likely reasons for the issue, since the computer can ping known IP addresses on the internet and receive a response.
Verified References: https://www.comptia.org/blog/what-is-dns https://www.comptia.org/certifications/a

Explanation
Private-browsing mode is the best option to mitigate the risk of customer data being accidentally saved to the kiosk. Private-browsing mode prevents the browser from storing cookies, history, passwords, and other data that could reveal the customer's identity or preferences. Manually clearing browsing data is not a reliable option, as it depends on the customer's awareness and willingness to do so. Browser data synchronization and password manager are features that could actually increase the risk of customer data being exposed, as they could sync or autofill sensitive information across devices or accounts. References:
Official CompTIA learning resources CompTIA A+ Core 1 and Core 2, page 12 Certification Study Guides and Books | CompTIA IT Certifications, CompTIA A+ Core 1 220-1101 Certification Study Guide, page 234

application that will allow a macOS user to create another virtual desktop space is Mission Control Mission Control lets you create additional desktops, called spaces, to organize the windows of your apps. You can create a space by entering Mission Control and clicking the Add button in the Spaces bar1. You can also assign apps to specific spaces and move between them easily1.

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

Explanation
NTFS stands for New Technology File System, which is a proprietary file system developed by Microsoft4. NTFS is the default file system for the Windows NT family of operating systems, which includes Windows 10, Windows Server 2019, and other versions5. NTFS provides features such as security, encryption, compression, journaling, and large volume support45. NTFS is not the native file system for other operating systems, such as macOS, Linux, or Android, although some of them can read or write to NTFS volumes with third-party drivers or tools