Answer-
It means sharing of information ,ideas and facts between various departments and individual working at the managerial level.
It helps in communicating with people of equal status.
It ensures cooperation among various sub units .
It comprises of written and oral communication .
It promotes smooth functioning because different departments and the work are inter connected .
Since employees belong to same status ,there is no hesitation in communicating.
This facilitates quick solution to irrelevant problems.