Time-To-Live is a key component of the IP datagram header format. Time to Live i

Question

Time-To-Live is a key component of the IP datagram header format. Time to Live is an eight bit integer initialized by the original sender and decremented by each router that processes the datagram. What happens when the value of the datagram integer reaches a value of zero? O The datagram forms a loop and is resent by the original sender The datagram is discarded The datagram is sent to the next router, then returned to sender An error message is sent back to the source a and c above b and d above

Explanation / Answer

Time-To-Live(or Hop Count) is key component of IP datagram header format.

At each router, Time-To-Live is decremented by 1 and packet is discarded when it reaches 0.

Also, an error message is being send to tell that packet has been discarded.

Time-To-Live is used to get the length of path or number of routers in path.

So, correct option is f i.e. both b and d above.

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