Related Questions

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 given to the exchange of control signals which is necessary for establishing a connection between a modem and a computer at one end of a line and another modem and computer at the other end?
A Handshaking
B Modem options
C Protocol
D Duplexing
E None of the above
When two computers communicate with each other, they send information back and forth. If they are separated by a reasonable distance, they can send and receive the information through a direct cable connection which is called a null-modem connection. Presently what is the maximum distance in metres permitted in this null-modem connection?
A 80
B 100
C 30
D 150
E None of the above
Your modem does not respond when you try to dial out. You try another modem on another computer and get the same result. What is the most likely problem?
A defective modem
B defective computer
C software bug
D bad phone line
E virus
A smart modem can dial, hang up and answer incoming calls automatically. Can you tell who provides the appropriate instruction to the modem for this purpose?
A Communications software
B Error detecting protocols
C Link access procedure (LAP)
D Telecommunications
E None of the above
MODEM শব্দটি তৈরি হয়েছে- i. Modulator এর Mo ii. Demodulator এর Dem iii. Demodulator এর Modem নিচের কোনটি সঠিক?
A i ও ii
B i ও iii
C ii ও iii
D i, ii ও iii
A modem that is attached to the telephone system by jamming the phone's handset into two flexible receptacles in the coupler?
A gateway
B bridge
C acoustic coupler
D time-division multiplexer
E None of the above
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
On a leased line installation a known good external modem shows no carrier detect light. Where is the problem most likely to be?
A In the modem
B In the phone line
C In the computer
D In the DTC equipment
E None of the above
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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