Question

A sizeable geographical area with communication based on the telephone system is though as
Local area network
Wide area network
Modulator-Demodulator
All of the above

Answer 1

Local area network is right answer.

Answer 2

Answer:

A sizeable geographical area with communication based on the telephone system is though as Wide Area Network (WAN). Hence the 2nd one is the correct answer among the given options.  

A WAN can be referred as the computer network or telecommunications network which extends over the large geographical place or distance. Wide area networks (WAN) can often be established with the leased telecommunication circuit.