Dell EMC Associate – Midrange Storage — Question 35

Which message is sent by a router when TTL expires?

Answer options

• A. Echo request
• B. Time exceeded
• C. Destination unreachable
• D. Echo reply

Correct answer: B

Explanation

When the TTL of a packet expires, the router sends a 'Time exceeded' message back to the sender to indicate that the packet could not be delivered due to its lifetime running out. Options A, C, and D do not apply in this context, as they refer to different scenarios in network communication.