India: Science ...

Consider the following statements:
1. Internet Protocol version 4 (IPv4) uses four-byte addresses which limit the address space to 232 addresses.
2. Internet Protocol version 4 (IPv4) was the first publicly used version of the Internet Protocol.
Which of the statements given above is/are correct?

Which one of the following is correct about the Internet Protocol addresses versions (IPv)?

WiMAX is related to which one of the following? 

Which one of the following network is a network architecture in which a set of clients are connected via shared communications line?

Which one of the following mobile services in India launched the 3G (third generation) service for the first time?

Consider the following statements:
1. 2G mobile system uses bandwidth of 30-200 KHz spectrum.
2. 3G mobile system uses bandwidth of 15-20 MHz spectrum.
3. 4G mobile system uses bandwidth of at least 40 MHz spectrum.
Which of the statements given above is/are correct?

Consider the following statements:
1. C-band performs better in comparison with Ku-band for satellite communications.
2. C-band is the first frequency band that was allocated for commercial telecommunications via satellites in the world.
Which of the statements given above is/are correct?

Which one of the following electromagnetic waves is used by the Bluetooth to exchange data over short distances?

Which of the following countries in the world implemented the enhanced data rates for GSM evolution for the first time? 

Consider the following statements:
1. Analog voice data (signal) can be compressed and multiplexed much more effectively than digital voice data.
2. The digital systems emit less radio power from the handsets than the analog systems.
Which of the statements given above is/are correct?