Related Questions

Computers cannot communicate with each other directly over telephone lines because they use digital pulses whereas telephone lines use analog sound frequencies. What is the name of the device which permits digital to analog conversion at the start of a long distance transmission?
A Interface
B Modem
C Attenuation
D Teleprocessor
E None of the above
If 'blue' means 'green', green' means 'yellow' 'yellow' means 'orange', 'orange' means 'black', 'black' means 'white', 'white' means 'red', 'red' means 'pink', 'pink' means 'brown', 'brown' means 'grey', than what is the color of human blood?
A black
B red
C white
D orange
If we want to connect a few computers in a small office, all the computers in one building, or all the computers in several buildings in close proximity, which type of network is required?
A PAN
B LAN
C MAN
D SAN
In a shipment of computers, 1% of the computers are defective. What is the ratio of defective to non-defective computers?
A 1 : 200
B 1 : 100
C 1 : 99
D 99 : 1
In a PC to telephone hookup for long distance communication, modem is connected between the telephone line and
A PC
B synchronous port
C crossover cable
D asynchronous port
E None of the above
What is the name of the device that converts computer output into a form that can be transmitted over a telephone line?
A Teleport
B Modem
C Multiplexer
D Concentrator
E None of the above
Research scientists all over the world are taking steps towards building computers with circuits patterned after the complex inter connections existing among the human brain's nerve cells. What name is given to such type of computers?
A Intelligent computers
B Supercomputers
C Neural network computers
D Smart computers
E None of the above
The topology that connects all computers in a network by a single cable with a terminal at each end is called :
A terminal
B ring
C star
D bus
Which is the device that converts computer output into a form that can be transmitted over a telephone line?
A Teleport
B Multiplexer
C Concentrator
D Modem
When a group of computers is connected together in a small area without the help of telephone lines, it is called
A Remote communication network (RCN)
B Local area network(LAN)
C Wide area network (WAN)
D Value added network (VAN)
E None of the above

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