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UPPCL AE 2018:29

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Which of the following best describes the usage of the $\text{TTL}$ (Time to Live) field of an $\text{IP}$ packet?

  1. Improve throughput
  2. Prevent packet from wandering around forever
  3. Reduce packet transmission delay
  4. Detect whether any error has been introduced in the packet
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  1. Prevent packet from wandering around forever

because TTL field reduces count every time it goes from one router to next router it can only wander in the internet till its count is >0.

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