Which method, described for servicing many servers across multiple racks, allows control from a single console?

• A. Using a KVM (keyboard, video, and mouse) switch to alternate between all servers on one console.
• B. Using a separate console for each server.
• C. Using a solar-powered remote management unit.
• D. Using wireless access to each server.

Answer: (A)

Centralized control of many servers from one place is achieved with a KVM switch. A KVM switch connects the administrator’s keyboard, video monitor, and mouse to the switch, and then the switch connects to all the servers. With a simple button press or hotkey, you switch the active connection to the server you want to work on, and the same console immediately controls that machine. This setup is ideal for servicing servers across multiple racks because it eliminates the need to walk to each server or maintain many separate consoles, saving space and time.

The other options don’t provide this single-point control. Having a separate console for each server defeats consolidation, a solar-powered remote management unit focuses on remote power and management rather than a shared console, and wireless access to each server typically requires accessing multiple connections rather than a single centralized console.