Difference between wifi and wireless lan

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1. What is the difference between WIFI and Wireless LAN? What is the purpose of WIFI and why it is necessary?

2. What must be there to enable the internetworking of different types of networks?

3. What are signaling messages and what is the role of signaling messages in telecommunication?

4. Discuss purpose and vulnerability of Domain Name Server (DNS)

5. What is UDP? Which layer of the OSI model UDP belongs? What happens when a data packet transported using UDP is lost?

6. Why VoIP is not as reliable as phone call using a landline?

7. Discuss one of the challenge sin big data and offer suggestion to overcome this challenge.

8. Identify the different service offerings of Cloud Computing and explain how Cloud Computing different from traditional premise-based computing.

Reference no: EM131439339

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