What is endianness in programming language and networking??

Question

Somewhere in the internet I saw promiscuous mode of networking is used by hacker but is there any use case in which it becomes mandatory to change the mode of network interface in promiscuous mode ?

Answer 1

Endianness is an order to store bytes into the memory or to send over the wire , I meant to say sending data in the network.
There are two types of endianness i.e little endian and big endian.
Little endian when lower bytes of a data are stored from lower address to higher address while in case of big endian it will be in the reverse order.