N10-005 · Question #597
Which of the following operates at OSI layer 2 to forward traffic based on the MAC address?
The correct answer is A. Switch. A switch is a Layer 2 device that builds a MAC address table and uses it to forward Ethernet frames to the correct port. It does not route based on IP addresses.
Question
Which of the following operates at OSI layer 2 to forward traffic based on the MAC address?
Options
- ASwitch
- BProxy Server
- CRouter
- DVPN Concentrator
How the community answered
(31 responses)- A90% (28)
- B6% (2)
- C3% (1)
Why each option
A switch is a Layer 2 device that builds a MAC address table and uses it to forward Ethernet frames to the correct port. It does not route based on IP addresses.
A switch operates at OSI Layer 2 (Data Link layer) and maintains a MAC address table (CAM table) to make forwarding decisions. When a frame arrives, the switch reads the destination MAC address and forwards the frame only to the port associated with that address, reducing unnecessary traffic.
A proxy server operates at OSI Layer 7 (Application layer), forwarding requests based on application-layer content, not MAC addresses.
A router operates at OSI Layer 3 (Network layer) and forwards packets based on IP addresses, not MAC addresses.
A VPN Concentrator operates at Layer 3 or above, managing encrypted tunnels using IP-based addressing, not MAC addresses.
Concept tested: OSI Layer 2 switching and MAC address forwarding
Source: https://learn.microsoft.com/en-us/windows-server/networking/technologies/network-subsystem/net-sub-choose-nic
Topics
Community Discussion
No community discussion yet for this question.