Explanation/Reference:
Explanation:
Because fiber-optic cable passes electrically non-conducting photons through a glass medium, it is resistant to Electromagnetic interference (EMI).
Incorrect Answers:
A: Microwaves are vulnerable to Electromagnetic interference (EMI).
C: Twisted pair cables are vulnerable to Electromagnetic interference (EMI).
D: Coaxial cables are vulnerable to Electromagnetic interference (EMI).

The_answer: Physical layer The Physical layer is responsible for the transmission of the data through the physical medium. This includes such things as cables.
Fiber optics is a cabling mechanism which works at Physical layer of OSI model
All of the other answers are incorrect.
The following reference(s) were/was used to create this question:
Shon Harris all in one - Chapter 7 (Cabling)

Explanation/Reference:
Explanation:
The TCP/IP model includes the following four layers: application, host-to-host, Internet, and Network access.
Incorrect Answers:
A: The OSI have seven layers, while the TCP/IP model only has four layers.
B: The TCP/IP model has four layers, not five.
D: The TCP/IP model has four layers, not three.
References:
Harris, Shon, All In One CISSP Exam Guide, 6th Edition, McGraw-Hill, New York, 2013, p. 518