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
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
কোনো খেলার সরাসরি সম্প্রচারের ডেটা ট্রান্সমিট হবার প্রক্রিয়া- (i) Broadcast Transmission (ii) Duplex Transmission (iii) Simplex Mode Transmission নিচের কোনটি সঠিক?
A i ও ii
B i ও iii
C ii ও iii
D i ii ও iii
We can receive data either through our television aerial or down our telephone lines and display this data on our television screen. What is the general name given to this process?
A Viewdata
B Teletext
C Telesoftware
D Videotex
E None of the above
Many large organizations with their offices in different countries of the world connect their computers through telecommunication satellites and telephone lines. Such a communication network is called
A LAN
B WAN
C ECONET
D EITHERNET
E None of the above
A cordless telephone using separate frequencies for transmission in base and portable units is known as
A Duplex arrangement
B Half duplex arrangement
C Either A or B
D Neither A nor B
What are the most commonly used transmission speeds in BPS used in data communication?
A 300
B 1200
C 2400
D 9600
E None of the above
What do we call a network whose elements may be separated by some distance? It usually involves two or more small networks and dedicated high-speed telephone lines.
A URL (Universal Resource Locator)
B LAN (Local Area Network)
C WAN (Wide Area Network)
D World Wide Web
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
Sales persons and other employees of the company who spend much of their time away from their offices but keep in touch with their company's microcomputers or main frame computers over telephone lines are called
A field workers
B telecommuters
C teleprocessors
D company directors
E None of the above

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