- A. It is an open-standard trunking protocol
- B. It is a Cisco-proprietary trunking protocol
- C. It inserts a 4-byte identifying tag in the Ethernet frame after the source MAC address field.
- D. It encapsulates the original data frame inside a trunking header.
- E. It uses a 20-bit label to identify packets within a trunk.
Answer: Option A. C.
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