1 |
Which communication medium requires line of sight. |
Microwave
Fibre wave
Coaxial
Twisted pair
|
2 |
The communication channels can be divide into. |
Two types
Three types
Four types
Five types
|
3 |
Which of the following is not a communication media. |
Twisted pair
UTP
Microwave
Modern
|
4 |
Transmission mode is |
1
2
3
4
|
5 |
Digital signals are commonly called as. |
Broad band
Base Band
Narrow band
Frequency
|
6 |
Start and stops Bits are not required to this types of transmission. |
Archnchronous
synchronous
Isosynchronous
Mono chronous
|
7 |
Typically cladding has diameter of_________ microns. |
120
122
124
125
|
8 |
The communication channel can be divided into |
Two types
Four types
Five types
Three types
|
9 |
Select unguided media from the following. |
Twisted pair
coaxial
Satellite
Fiber optic
|
10 |
Data is transmitter block by block in. |
Digital transmission
Analog transmission
Synchronous transmission
Arynchmous transmission
|
11 |
Most of data transmission over telephone lines use. |
Serial transmitted
Parallel transmitted
Digital transmitted
Hybrid transmitted
|
12 |
Important property of fiber optic cable is |
Attenuation
Reflection
Interference
Noise
|
13 |
Which of the following techniques uses modulation. |
Mouse
Keyboard
Printer
Light pen
|
14 |
The diameter of a fiver optic cable is. |
62.5 cm
62.5 m
62.53 nano meter
62.5 micro meter
|
15 |
_________ is the fastest communicationmode. |
Full Duplex
Half Duplex
Suplex
Simplex
|