CCNA 1 Chapter 4 V5.0 Answers
1. Which layer of the OSI model is responsible for specifying the encapsulation method used for specific types of media?
application
transport
data link
physical
2. Why are two strands of fiber used for a single fiber optic connection?
The two strands allow the data to travel for longer distances without degrading.
They prevent crosstalk from causing interference on the connection.
They increase the speed at which the data can travel.
They allow for full-duplex connectivity.
