NSS

"World Telecommunication Day" has been celebrated on May 17 th from which year onwards?

• 1967

• 1965

• 1970

• 1969

In which year the first telphone switchboard (exchange) was

invented?

• 1830

• 1857

• 1867

• 1878

Which company launched the first mobile phone ?

• Motorola

• Nokia

• Apple

• At&T

Who is considered as the inventor of the first practical mobile phone for hand-held ?

• James Cooper

• Smith Cooper

• Martin Cooper

• Royn Cooper

Which company is considered as the first company to launch first smartphone ?

• RIM

• NOKIA

• IBM

• MICROSOFT

Which is the world's largest individual mobile operator ?

• VODAFONE

• ORANGE

• BHARTI AIRTEL

• CHINA MOBILE

Which was the first phone that uses the Android mobile device platform ?

• Dell Mini3i

• HKC Pearl

• Motorola i1

• HTC Dream

1.Which type of data network supports the interconnection of computers within highly populated area?

• LAN

• WAN

• MAN

• None of the above

The ratio of number of successful calls to the number of call attempts is known as ______

• Call Completion Rate (CCR)

• Call Block Rate (CBR)

• Busy Hour Call Rate (BHCR)

• None of the above

A system of transmission of sounds, images, texts or data in the form of electronic signals.

• Telephone

• Telecommunication

• Communication

• None