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PGEE 2018
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closed as a duplicate of: GATE CSE 2006 | Question: 5

For which one of the following reasons does internet protocol(IP) use the time-to-live(TTL) field in IP datagram header?

  1. Ensure packets reach destination within that time
  2. Discard packets that reach later than that time
  3. Prevent packets from looping indefinitely
  4. Limit the time for which a packet gets queued in intermediate routers
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