www.bbcnoun.com.ng CIT423 10/10 How many layers is present in OSI reference model? 7 Layers The LANs are distinguished from other kinds of networks by three characteristics except____________________ Function ______ layer of the OSI model is responsible for end-to-end delivery. The Data Link Layer In a __________ topology, one long cable acts as a backbone to link all the devices in the network. Bus What is the full meaning of OSI? Open System Interconnection __________ network is a relatively smaller and privately owned network with maximum span of 10km LAN _______________ network topology has a central controller Star Topology How many layers is present in TCP/IP reference model? 4 Layers The main tasks of the session layer are to provide _________ except. end-to-end delivery Which of the following is an application of Computer Network? Resource sharing