COMPUTER NETWORKING

NETWORK LAYER

INTRODUCTION

Please wait while the activity loads.
If this activity does not load, try refreshing your browser. Also, this page requires javascript. Please visit using a browser with javascript enabled.

If loading fails, click here to try again

Question [CLICK ON ANY CHOICE TO KNOW THE RIGHT ANSWER]

Which field in the IPv4 header is used to prevent a packet from traversing a network endlessly?

A	Sequence Number
B	Acknowledgment Number
C	Time-to-Live
D	Differentiated Services

Explanation:

Detailed explanation-1: -4. Which field in the IPv4 header is used to prevent a packet from traversing a networkendlessly? oTime-to-Live*oSequence NumberoAcknowledgment NumberoDifferentiated ServicesExplain:The value of the Time-to-Live (TTL) field in the IPv4 header is used to limit the lifetimeof a packet.

Detailed explanation-2: -Time to live (TTL) is a 8 bit field. It indicates the maximum number of hops a datagram can take to reach the destination. The main purpose of TTL is to prevent the IP datagrams from looping around forever in a routing loop.

Detailed explanation-3: -IP provides for a one-byte “Time to Live” (TTL) field in the IP header; it is set by the sender and decremented by 1 at each router; a packet is discarded if its TTL reaches 0. This limits the number of times a wayward packet can be forwarded to the initial TTL value, typically 64.

There is 1 question to complete.