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200-901 · Question #20
200-901 Question #20: Real Exam Question with Answer & Explanation
The correct answer is D: MAC address. A MAC (Media Access Control) address is the hardware address assigned to a network interface card (NIC) at the physical layer. It uniquely identifies a device on a local network segment.
Network Fundamentals
Question
What is an example of a network interface hardware address?
Options
- Adomain name
- BIP address
- Cworkstation name
- DMAC address
Explanation
A MAC (Media Access Control) address is the hardware address assigned to a network interface card (NIC) at the physical layer. It uniquely identifies a device on a local network segment.
Common mistakes.
- A. A domain name is a human-readable logical identifier resolved via DNS; it is not tied to hardware.
- B. An IP address is a logical Layer 3 address assigned by software or DHCP and is not burned into hardware.
- C. A workstation name is a logical hostname assigned by an administrator or OS and is not a hardware-level identifier.
Concept tested. MAC address as network interface hardware identifier
Reference. https://www.cisco.com/c/en/us/support/docs/802-1x-authentication/13600-mac-address-ov.html
Topics
#MAC address#Network interface#Hardware address#Networking fundamentals
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