Question

True and False (T/F)

1. Radio spectrum is normally owned by the incumbent operator.

2. Parity check is used for compressing the bandwidth of signal.

3. Encryption speeds transmission on the Internet.

4. There is normally only one route between two nodes in any kind of networks.

5. The high teledensity always leads to high GDP, no matter the degree of privatization in the telecommunications sector.

6. Multiplexing is a standard for converting digital signal to analog signal.

7. The next generation information infrastructure will do its best to enhance QoS..

8. Intelligent network means the network is able to generate new applications on its own.

9. Lead users can contribute to a company’s innovation only at the idea generation and conception stages.

10. Portable Internet means you can carry communication terminals with you anywhere, anytime.

11. The analogue fixed line telephone set converts acoustic energy to electrical energy of higher frequency.

12. National backbone network uses star topology.

13. The higher the information reach of the communications channel is, the more effective the telepresence will be

14. The sole advantage of EoIP (Everything over IP) is low cost.

15. The Long Term Evolution (LTE) technology has greater range of transmission than the WiFi.

Answer 1

1. True

Radio spectrum is owned by shared management mostly incumbent, priority and general access. Hence the answer is true.

2. False

Parity checks are used to check the errors of text and also for text compression that is a four bit at the end of ASCII code. Parity checks are not used in compressing the bandwidth of the signal.

3. True

The answer is can't say as it depends on the rate of encryption and internet speed. If the system can encrypt the data at the rate of 30 MB/s but the transfer happens only at 5 MB/s then the encryption slows internet speed. But with today's fast computers, many techniques are available to make the internet speed faster with encryption.

4. True

Unless the route is connected through other nodes, there is only one route to connect two nodes directly.

5. True

Teledensity is the amount of telephone network in a given area. If the number of telephones are more in an area, total development increases which results in high GDP.

6. False

Multiplexing is the method of sending multiple signals over a communication network in the form of single complex signal.

7. True

Quality of Service is very important in any kind of infrastructure and next generation infrastructure takes care of the same.

8. False

Intelligent Networks are used to develop and control services rapidly. It does not create applications on its own.

9. False

Lead users also help in marketing, understanding customer needs, finding out product characteristics and driving the product development in a proper manner.

10. False

Example of portable internet is mobile phone. Communication terminals are usually in computers, fax machines and so on to end the communication line. While carrying the mobile phones, we do not carry the communication terminals.

11. True

The principle of fixed telephone line is the conversion of sound waves into electric waves that is basically the conversion of acoustic energy to electrical energy.

12. False

National backbone network uses bus topology.

13. True

Telepresence is the form of video conference even in the remotest location. Only with the communication channels, this can be made possible.

14. True

This reduces the costs of transferring data.

15. True

The transmission power of wifi is limited when compared with LTE.