Which of the OSI model layers has the main purpose of defining and negotiating data formatting?

A) Presentation
B) Application
C) Transport
D) Network
E) Data link

A
Explanation: A) The OSI presentation layer (Layer 6 ) is responsible for defining and negotiating the data format between communicating hosts. Some common formats include ASCII and EBCDIC. It is also at this layer that some data conversion can occur (for example, from ASCII to EBCDIC).