What three items are contained in an Ethernet header and trailer? (Choose three.)
- source IP address
- source MAC address
- destination IP address
- destination MAC address
- error-checking information
Explanation: Layer 2 headers contain the following:
- Frame start and stop indicator flags at the beginning and end of a frame
- Addressing – for Ethernet networks this part of the header contains source and destination MAC addresses
- Type field to indicate what Layer 3 protocol is being used
- Error detection to determine if the frame arrived without error
Related exam: CCNA 1 v7 Checkpoint Exam: Ethernet Concepts Exam Answers
