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Revision Lesson 2

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Mini Quiz What do the following Abbreviations stand for? POP NAP IP TCP FTP ISP

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Mini Quiz What do the following Abbreviations stand for? POP Point of Presence NAP Network Access Point IP Internet Protocol TCP Transmission Control Protocol FTP File Transfer Protocol ISP Internet service provider

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Topics next week Benefits of VOIP Data Exchange Internet infrastructure Search engine Http why is it better Software as service cloud computing Databases

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VOIP Voice Over Internet Protocol Benefits Being able to contact relatives or business colleagues on the other side of the world. Online conferences and Meetings - Reduces Travel costs, travel time, avoids the loss of productivity when traveling and the cost of hiring the venue. Disadvantages Reliability. VoIP service is dependent on the quality and reliability of your broadband service and may not work if there is a power cut. Voice quality. Voices can sometimes be distorted or there may be long pauses between questions and answers. Security. As with all internet technologies, identity theft, viruses, spamming and phishing are all potential threats VOIP What is it?

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Packet Switching and Circuit Switching Circuit All go in a logical order and follow the same route. Packet Goes multiple routes and reassembled at the other end. Youtube Video

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The Internet Explained in 5 mins A good video which explains how the internet works to view webpages and how emails are sent. Youtube The Internet Explained.

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