To help secure the device against this threat in the future, the administrator should require a PIN on the unlock screen and block a third-party application installation. Requiring a PIN on the unlock screen can help to prevent unauthorized access to the device, while blocking third-party application installation can help to prevent malicious applications from being installed on the device.

https://partners.comptia.org/docs/default-source/resources/comptia-a-220-1102-exam-objectives-(3-0)

Chain of custody and data integrity are two options that should most likely be considered when preserving data from a hard drive for forensic analysis. Chain of custody refers to the documentation and tracking of who has access to the data and how it is handled, stored, and transferred. Data integrity refers to the assurance that the data has not been altered, corrupted, or tampered with during the preservation process

The technician most likely needs to change the default gateway on the workstation to resolve the issue. The default gateway is the IP address of the router that connects the workstation to the internet, and it is responsible for routing traffic between the workstation and the internet. If the default gateway is incorrect, the workstation will not be able to access external web pages.