ISRO | ISRO CS 2008 | Question 5

In Ethernet, the source address field in the MAC frame is the _______ address.

(A) original sender’s physical
(B) previous station’s physical

(C) next destination’s physical

(D) original sender’s service port


Answer: (B)

Explanation: While the IP address of source and the destination in a datagram is kept same at each hop, the source MAC address is replaced at each station while the frame is in transit. So for the current station, the source address field will contain the MAC address of the previous station.

So, option (B) is correct.

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