Question

d.
prevents the unauthorised
entry into the network,
e. In a network covering long distances the
cable is used.
C​

Answer 1

Answer:

true but what is ur question in this can u be more specific

Answer 2

Answer:

data abstraction

and the other was the optic fibre cable

Explanation:

data abstraction hides all the detail and it provide only essential features leaving the background details.

the optic fibre is the cable used for networking in long distance example jio fibre cable