A client reports a laptop does not power on after a lightning storm. The technician diagnoses the problem as being a faulty motherboard. after replacing the motherboard and booting the laptop, the screen remains black, although the laptop displays an image on an external monitor. Which of the following would be the technician's NEXT step?

When a user browses to a favorite website on a Windows laptop, a different website opens. A technician installs an additional web browser, but it also opens to the same unfamiliar site. The technician resets the web browser settings back to default, but the issue persists.
Which of the following troubleshooting steps should the technician complete NEXT?

A company has hired a new IT firm to manage its network switches and routers. The firm is geographically separated from the company and will need to able to securely access the devices.
Which of the following will provide the ability to access these devices?

A technician was contacted regarding an issue affecting hundreds of users on a domain network.
Which of the following would be MOST effective al remediating future issues through documentation?

A Linux user report that an application will not open and gives the error only one instance of the application may run at one time.
A root administrator logs on ot the device and opens terminal.
Which of the following pairs of tools will be needed to ensure no other instance of the software are correctly running?