Multiple Choice Question (MCQ)
Question: Which is a reference tool for understanding data communication between any two network system?
A.
LAN
B.
WAN
C.
ISO model
D.
OSI model
Correct Answer: OSI model
Explanation
OSI stands for Open Systems Interconnection. It has been developed by ISO – ‘International Organization for Standardization‘, in the year 1984. It is a 7 layer architecture with each layer having specific functionality to perform. All these 7 layers work collaboratively to transmit the data from one person to another across the globe.