UGC NET CSE | June 2011 | Part 2 | Question: 29

Question

A smart modem can dial, hangup and answer incoming calls automatically. Can you tell who provides the appropriate instructions to the modem for this purpose ?

• A. Communication software
• B. Error detection protocols
• C. Link access procedure (LAP)
• D. Telecommunications

Answer 1

Ans: A

ref: https://books.google.co.in/books?id=DUaNfCPI-TQC&pg=PA231&lpg=PA231&dq=A+smart+modem+can+dial,+hangup+and+answer+incoming+calls+automatically&source=bl&ots=kZ4iVHSrSv&sig=zJeMtraJOVFZ84Ulx2ioswEy7V0&hl=en&sa=X&ved=0ahUKEwjg4sTKyKLWAhWLQY8KHXmgBA4Q6AEIWzAJ#v=onepage&q=A%20smart%20modem%20can%20dial%2C%20hangup%20and%20answer%20incoming%20calls%20automatically&f=false

https://books.google.co.in/books?id=yPTGNEmgB4MC&pg=SA5-PA10&lpg=SA5-PA10&dq=A+smart+modem+can+dial,+hangup+and+answer+incoming+calls+automatically&source=bl&ots=gbc1F4GRN7&sig=cJjRQ2_XOZ5FjNprj20I-mYdolE&hl=en&sa=X&ved=0ahUKEwjg4sTKyKLWAhWLQY8KHXmgBA4Q6AEIWDAI#v=onepage&q=A%20smart%20modem%20can%20dial%2C%20hangup%20and%20answer%20incoming%20calls%20automatically&f=false