True or False. Write either T or F at the right of each expression. 1. The highe

Question

True or False. Write either T or F at the right of each expression. 1. The higher the value of signal to noise ratio (SNR), the lower is the value of the bit error rate (BER). 2. The hidden terminal problem in Wi-Fi is mitigated by the use of CSMA/CD. 3. In a wireless link, interference does not matter as only noise impacts the signal to noise ratio 4. CDMA is a multiple access technique 5. You don't need a license to install a WiFi base station 6. Triangular routing is the most efficient way to handle mobility in cellular networks 7. Mobile IP is not always necessary as mobility can be handled efficiently through regular routing 8. Content distribution networks are third-party operated networks that bring content close to the user 9. The playout delay can be adapted based on the estimated delay 10. Pure ALOHA is more efficient than slotted ALOHA in channel utilization 11. The job of ARP is to translate a given MAC address to IP address 12. Ethernet and 802.11 use the same frame structure 13. Acknowledgement is used in 802.11 but not in wired Ethernet 14. If stored video is streamed directly from a Web server to a media player, then the application is using TCP as the underlying transport protocol 15. When using RTP, it is possible for a sender to change encoding in the middle of a session 16. IoT is a kind of infrastructure-based wireless network 17. For many scenarios of IoT, communication with peers outside immediate communication range is required, and a possible solution is to use multi-hop networking 18. The Internet of Things (IoT) is a shorthand way of describing a globally interconnected continuum of devices and objects interacting with the physical environment, people and each other 19. If an RTP session has a separate audio and video stream for each sender, then the audio and video streams use the same SSRC 20. Underwater networks can use radio frequency waves as long as CSMA/CA is correctly implemented.

Explanation / Answer

1. The signal to noise ratio is high, then the bit error rate will be very small (True)

2. The hidden terminal problem in wifi is mitigated by the use of csma/cd (False)

3. In wireless link, interference does not matter as only noise impacts the signal to noise ratio is (False)

4. CDMA multiple access technique (True)

5. you don't need a license to install a wifi base stations (Flase)

6. Triangular routing is the most efficient way to handle mobility in cellular networks (Flase)

7. True

8. True

9. True

10. Flase

11. True

12. False

13. True

14. True

15. True

16. True

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