COMPUTER NETWORKING

NETWORK LAYER

NEXT GENERATION IP

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

What is the term for the packet counter that tells a packet when it should be dropped in ipv4?

A	hop limit
B	Time to live
C	Round trip time
D	type field

Explanation:

Detailed explanation-1: -What is time-to-live (TTL)? Time-to-live (TTL) is a value for the period of time that a packet, or data, should exist on a computer or network before being discarded.

Detailed explanation-2: -Time to live (TTL) refers to the amount of time or “hops” that a packet is set to exist inside a network before being discarded by a router. TTL is also used in other contexts including CDN caching and DNS caching.

Detailed explanation-3: -These tools send packets to the destination using an ever increasing TTL, starting with a value of one. On receipt of a packet with a TTL of one, the first hop router (likely the default gateway for the source host) will decrement the TTL by one resulting in a value of zero.

Detailed explanation-4: -When a router receives a packet with a TTL equal to 0, it discards that packet and sends a TTL expired message via ICMP back to the source host. How is the TTL (Time to Live) field utilized in IPv4? After L2TP establishing a VPN tunnel, GRE is used to transmit L2TP data frames through the tunnel.

There is 1 question to complete.