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Lesson 1

Networks and Data Communication

Lesson parts

1.1 First: computer networks and their devicesFirst: computer networks and their devices1.1

1.2 Second: patterns of using the networkSecond: patterns of using the network1.2

1.3 Third: connection methods — circuit and packet switchingThird: connection methods — circuit and packet switching1.3

1.4 Fourth: IP addresses, domain names and DNSFourth: IP addresses, domain names and DNS1.4

1.5 Fifth: communication protocols and the TCP/IP modelFifth: communication protocols and the TCP/IP model1.5

1.6 Sixth: how a web page worksSixth: how a web page works1.6

1.7 Seventh: how e-mail worksSeventh: how e-mail works1.7

1.8 Eighth: data transfer speed and its calculationsEighth: data transfer speed and its calculations1.8

1.9 Ninth: cloud computingNinth: cloud computing1.9

1.10 Tenth: generative artificial intelligenceTenth: generative artificial intelligence1.10

1.11 Eleventh: the prompt and prompt engineeringEleventh: the prompt and prompt engineering1.11

1.12 Exam traps and key takeawaysExam traps and key takeaways1.12