1.
The type of coaxial cable which uses a dielectric material to separate conductors is called __________________.
2.
The type of coaxial cable which uses a solid dielectric material to separate conductors is called _______________.
3.
Signals propagating down an unguided transmission medium are available to anyone who has a device capable of receiving them. TRUE or FALSE?
4.
The band of frequencies that are too low to be seen by the human eye.
5.
Physical layer is the lowest layer of the OSI protocol hierarchy which also means the ______________________ .
A. 
B. 
C. 
D. 
6.
The displacement of ____________ waves is in the direction of propagation.
A. 
B. 
C. 
D. 
7.
The displacement of ____________ waves is perpendicular to the direction of propagation
A. 
B. 
C. 
D. 
8.
A transverse wave is an ____________ motion.
A. 
B. 
C. 
D. 
9.
Electromagnetic waves are produced by the acceleration of _________________.
A. 
B. 
C. 
Irregular interval motion
D. 
10.
Electromagnetic waves that travel along a transmission line from the source to the load are _____________ .
A. 
B. 
C. 
D. 
11.
Electromagnetic waves that travel from the load back toward the source are called _________________.
A. 
B. 
C. 
D. 
12.
The distance of one cycle occurring in space is ____________.
A. 
B. 
C. 
D. 
13.
___________________ is periodic and repetitive oscillations of electromagnetic wave
A. 
B. 
C. 
D. 
14.
It is defined as waves travel at various speed, depending on the type of wave and the characteristics of the propagation medium
A. 
B. 
C. 
D. 
15.
It comprised of two or more metallic conductors separated by a nonconductive insulating material.
A. 
B. 
C. 
D. 
16.
It comprised of two or more metallic conductors separated by the spacers with a continuous solid dielectric that ensures uniform spacing along the entire cable.
A. 
B. 
C. 
D. 
17.
It is formed by twisting two insulated conductors around each other.
A. 
B. 
C. 
D. 
18.
This cable consists of two copper wires where each wire is separately encapsulated in polyvinyl chloride insulation.
A. 
B. 
C. 
D. 
19.
From the selection below, identify the disadvantage of using optical fiber technology.
A. 
Fiber optic transmitters and receivers are still relatively expensive compared to electrical interfaces.
B. 
Fiber optic networks operate at high speeds - up into the gigabits with large carrying capacity.
C. 
Fiber optic cables costs much less to maintain.
D. 
Fiber optics are immune to electromagnetic interference.
20.
Which of the following is TRUE?
A. 
The information on the conductor are more secured than optical fiber.
B. 
Fiber optic cables sometimes produce sparks since they do have leakage current.
C. 
There are no radiated magnetic fields around optical fibers; the electromagnetic fields are confined within the fiber.
D. 
There is no loss of data when fiber optic cable is bent.
21.
Thin glass center of the fiber where the light travels is ________________.
A. 
B. 
C. 
D. 
22.
The outer optical material surrounding the thin glass center of the fiber that reflects the light back into this thin glass is __________________.
A. 
B. 
C. 
D. 
23.
Plastic coating that protects the fiber from damage and moisture is ____________.
A. 
B. 
C. 
D. 
24.
The bundles of 2 or more fiber cables are protected by the cable's outer covering, called ________________.
A. 
B. 
C. 
D. 
25.
The transfer of information over a distance without the use of electrical conductors is through ___________________.
A. 
B. 
C. 
D.