Who is the vice among following is used for sending digital data over a phone line?

A Usb
B Modem
C Scanner
D Printer

Correct Answer: Modem

ডেটা কমিউনিকেশন করার জন্য কম্পিউটার বা অন্যান্য Electronic device কে যুক্ত করতে যে সকল Instrument ব্যবহার করা হয় তাদের মধ্যে Modem অন্যতম। এর সাহায্যে Digita single কে Analog single এ এবং Analog singal কে Digital single এ রুপান্তর করা যায়। এ জন্য ডেটা কমিউনিকেশন সিস্টেমে প্রেরক এবং গ্রাহক উওভয় প্রান্তেই Modem প্রয়োজন হয়।
Bissoy MCQ
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