If the value $0$x$12345678$ is arranged in memory as $4-$byte words starting at address $0$:

Address

Data

$12$

$12$

$8$

$34$

$4$

$56$

$0$

$78$

Which endian representation is it$?$

If the value $0$x$12345678$ is arranged in memory as $4-$byte words starting at address $0$:

Address

Data

$12$

$12$

$8$

$34$

$4$

$56$

$0$

$78$

Which endian representation is it$?$

Little endian

Big endian

Whatever the processor interprets is