Which of the following is a common physical network topology?

A.
Cross-over

B.
Loopback

C.
Star

D.
Straight

Explanation:
A star network consists of one centralswitch,hubor computer, which acts as a
conduit to transmit messages. This consists of a central node, to which all other nodes are
connected; this central node provides a common connection point for all nodes through a hub. In
star topology, every node (computer workstation or any other peripheral) is connected to central
node called hub or switch.