At which OSI layer is a destination MAC address added to a PDU during the encapsulation process?
- data link layer
- transport layer
- application layer
- network layer
| Explanation & Hint:
A destination MAC (Media Access Control) address is added to a Protocol Data Unit (PDU) during the encapsulation process at the “data link layer,” which is also known as OSI Layer 2. The data link layer is responsible for addressing and controlling data frames within the local network segment, and MAC addresses are used to identify specific devices on the same network segment at this layer. |