CompTIA Server+ SK0-005 Practice Question

The correct answer is the server's serial number. The serial number is a unique identifier assigned by the manufacturer to a specific piece of hardware. It is physically printed on a label on the server chassis and is also accessible electronically through remote management interfaces (e.g., iLO, iDRAC, IPMI). This allows an administrator to definitively match the server generating the alert with the physical unit in the rack.

• The server's asset tag is an identifier assigned by the organization for internal tracking and is a good option, but the serial number is the authoritative link to the manufacturer for warranty and support and is guaranteed to be accessible by hardware-level monitoring tools.
• The server's MAC address identifies a network interface controller (NIC), not the entire server chassis. Since a server can have multiple NICs and they can be replaced, it is not a reliable identifier for the server chassis itself.
• The server's hostname is a logical identifier within the operating system or network. While it identifies the server that needs service, it does not directly help in physically distinguishing it from other identical servers in a rack, as the hostname is not typically printed on the chassis.