ZIMSEC O-Level Computer Science
6.4Communication Networks and Internet Technologies
In this topic
Lessons
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Computer networks: types and topologies
30 min
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Internet service providers and online services
30 min
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Serial, parallel, simplex, half-duplex and full-duplex transmission
30 min
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Transmission media: cables and wireless
30 min
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Cloud storage and cloud computing services
30 min
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Mobile devices and wireless technologies
30 min
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MAC addresses and IP addresses
35 min
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Network protocols, TCP/IP and the OSI model
35 min
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Networking devices: NICs, switches and routers
35 min
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The internet, the web, URLs, HTTP(S), browsers and DNS
35 min
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Sample question
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