The fiber optic is surrounded concentric layer of glass is called.
a) cladding
b) coating
c) jacket
d) none of these
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
Types of unguided media is/are.
a) one
b) two
c) three
d) four
Explanation:radio waves, microwave, infra-red, satellite
The transmission medium, that is used to communicate through radio signal in air.
a) radio wave
b) microwave
c) infra-red
d) none of these
The speed of radio
wave signal is
a) 50 Mbps
b) 51Mbps
c) 53 Mbps
d) 54 Mbps
