Consider the following statements regarding time to live(TTL):
I – Each time it passes through a router, its value is decremented by 1.(If TTL is zero, it will be discarded by router instead of decrement.)
II – TTL is the number of routers a packet has to travel.
III – Advantage of TTL is that there will be no undelivered packet in the network which is circulating indefinitely.
IV – If there are n routers in between sender and receiver then TTL will be decremented by n -1.
Which of the above statement/s is/are incorrect?
(A) II and IV
(B) I, II and IV
(C) III only
(D) IV only


Answer: (D)

Explanation: If there are n routers in between sender and receiver then TTL will be decremented by n.
So, option (D) is correct.

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