Desktop Support Questions et reponses d'entretien
Question 16. What is the purpose of System Restore?
System Restore in Windows allows users to revert their system files and settings to a previous point in time, helping to fix problems without affecting personal files.
Example:
If a recent software installation caused issues, System Restore can return the system to a state before the installation.
Question 17. Explain the difference between a hub, switch, and router.
A hub operates at the physical layer and broadcasts data to all connected devices. A switch operates at the data link layer, forwarding data only to the intended recipient. A router operates at the network layer, connecting different networks.
Example:
In a hub, all connected devices share the same bandwidth, while a switch provides dedicated bandwidth to each device.
Question 18. How do you map a network drive in Windows?
Open File Explorer, click 'This PC,' and select 'Map network drive.' Choose a drive letter and enter the network path to the shared folder.
Example:
Mapping a network drive allows quick access to shared resources without navigating through the entire network structure.
Question 19. What is the purpose of an IP address?
An IP address uniquely identifies a device on a network and facilitates communication between devices.
Example:
When you type a website's domain name, DNS resolves it to an IP address, allowing your device to connect to the server hosting the website.
Question 20. How do you troubleshoot a printer that is not printing?
Check for paper jams, ensure the printer is online, verify ink or toner levels, and update or reinstall printer drivers.
Example:
Print a test page to determine if the issue is with the printer or the computer.
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