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Topic plan · A-Level Computer Science 9618 · Topic 14

Communication and internet technologies

The TCP/IP protocol suite and its layers, HTTP, FTP, POP3, IMAP and SMTP, BitTorrent, and circuit switching compared with packet switching.

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Unit at a glance

3 lessons, 135 minutes of teaching

Lessons
3, each planned for 45 minutes
Worksheets
3 with answer keys
Quiz questions
18 multiple-choice, assignable in the app
Lab
Internet lab
Scheme of work

The lessons in order

RefLesson packStructureWorksheetQuizLab tab
14.1The TCP/IP protocol suite
Two computers made by different companies, running different operating systems, on opposite sides of the world, can still exchange a web page in a fraction of a second.
Anticipation / Reaction Guide6 Q, 20 marks6 MCQtab 7
14.1HTTP, FTP, POP3, IMAP, SMTP and BitTorrent
The Application layer is where the protocols you actually use live: one fetches web pages, one moves files, three handle email, and one shares huge files between thousands of ordinary computers.
Cooperative Concept Mapping6 Q, 22 marks6 MCQtab 7
14.2Circuit switching and packet switching
A traditional phone call books a whole path through the network for as long as you talk, even while you are silent.
Think-Pair-Share6 Q, 22 marks6 MCQtab 7, tab 1

Each pack holds the plan, worksheet and quiz for its lesson. Teach the rows in order; the lab tabs match the student lessons.

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