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GATE CSE 2010 | Question: 15. PGEE 2018

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One of the header fields in an IP datagram is the Time-to-Live (TTL) field. Which of the following statements best explains the need for this field?

  1. It can be used to prioritize packets.
  2. It can be used to reduce delays.
  3. It can be used to optimize throughput.
  4. It can be used to prevent packet looping.
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ANS - D

TTL  decreases by one as it passes to different router . If  TTL is not there then packet will get into infinite loop .

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