ICND1: Interconnecting Cisco Networking Devices Part 1 (CCENT, legacy) — Question 50

Which two attributes of a packet change at every router along the path from source to destination? (Choose two.)

Answer options

• A. destination IP address
• B. source MAC address
• C. packet MTU
• D. source IP address
• E. destination MAC address BE

Correct answer:

Explanation

The correct answers are B (source MAC address) and E (destination MAC address) because the source MAC address changes to the MAC address of the router interface that forwards the packet, and the destination MAC address changes to the MAC address of the next hop router. The destination IP address, source IP address, and packet MTU remain unchanged as the packet travels through the network.