Layer 1 - Physical

Question 1

This layer references the physical components of the hardware used in networking and is the lowest layer that you will find. Devices use electrical signals to transfer data between each other in a binary numbering system (1’s and 0’s).

Answer 1

Physical

Question 2

What is the name of the numbering system that is both 0’s and 1’s?

Answer 2

Binary

Question 3

What is the name of the cables that are used to connect devices?

Answer 3

Ethernet Cables