It means that the data flows both ways at an equal rate. Usually your downstream speed is faster (asynchronous), but you can get it to where both speeds are equal (synchronous).
ADSL.
3g is mobile internet and adsl is a type of home internet so adsl is better
NO
Some synonyms of symetrical are: balanced, commensurate, equal, proportional, regular, shapely, commensurable.
Yes
Yes.
A starfish.
Yes, it is.
they paint symetrical to show relaxation and kindness and exactly the same on each side
Dialup is slow, ADSL is fast
Asymmetric Digital Subscriber Line(ADSL)
no because if you put a mirror line between 'm' and 'n' they are not symetrical which means the others are not symetrical. here is an example example : m / n the slash is the mirror line and this is not symetrical