A type of cable that uses glass threads to transmit data is called………
a) twisted pair
b) coaxial cable
c) fiber optic
d) all of these
Which of the following are characteristic of fiber optic?
a) more expensive
b) difficult to install
c) highest data transfer rate
d) all of these
The fiber optic is surrounded concentric layer of glass is called…….
a) cladding
b) coating
c) jacket
d) none of these
What is the transmission speed of fiber optic is?
a) up to billions of bits
b) up to millions of bits
c) up to thousands of bits
d) up to trillion bits
In ……. media, the communication takes place through air or space.
a) guided
b) unguided
c) transmission
d) none of these
How many types of unguided media is/are?
a) one
b) two
c) three
d) four
Explanation: radio waves, microwave, infra-red, satellite
