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Computer Networks · Interview Question

What is the function of the Time-to-Live (TTL) field in an IP header?

Detailed answer, explanation and code for this interview question. Ideal for Computer Networks interview preparation, coding rounds and viva questions.

Difficulty: EasyType: MCQ

Question Overview

Subject

Computer Networks

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Asked in Companies

Google

Accenture

Problem Statement

What is the function of the Time-to-Live (TTL) field in an IP header?

Explanation

The TTL field prevents packets from looping endlessly in case of routing errors. Each router decrements TTL by one; when it reaches zero, the packet is discarded and an ICMP ‘Time Exceeded’ message is sent back. TTL protects network stability.

Practice Sets

This question appears in the following practice sets:

Network Layer & IP Addressing

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What is the function of the Time-to-Live (TTL) field in an IP header? - Computer Networks | Preplance Interview Prep | Preplance

Master Interviews
Anywhere, Anytime

What is the function of the Time-to-Live (TTL) field in an IP header?

Problem Statement

Explanation

Practice Sets

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More from Computer Networks

Master Interviews Anywhere, Anytime

What is the function of the Time-to-Live (TTL) field in an IP header?

Problem Statement

Explanation

Practice Sets

Related Questions

What best defines a computer network?

Which network topology connects all devices to a single central device?

How many layers are there in the OSI reference model?

Describe the layers of the TCP/IP model and compare it with the OSI model.

What is a protocol in computer networking?

More from Computer Networks

Master Interviews
Anywhere, Anytime