WA Computer Science ATAR Year 11: Packets, routing and error detection
Students learn how data is split into packets, routed and reassembled, how network commands trace that journey, and how errors are detected and corrected.
One content description from the full WA Computer Science ATAR Year 11 — Network Communications journey. All 19 modules below are in that journey too, with the same content — add just these to a class, or the whole strand.
Modules (19)
1
Why data is broken down into packets
2
The three parts of a packet
3
Packet header
4
Packet switching
5
A router controls each packet's route
6
Routing table and next hop
7
Packets arriving out of order
8
Reordering packets at the destination
9
Hops and time to live (TTL)
10
The ping command
11
The nslookup command
12
The traceroute command
13
Why data is checked after transmission
14
Interference as the cause of transmission errors
15
Parity bit
16
Checksum
17
Echo check
18
The ARQ process step by step
19
Explaining how data arrives intact across a network
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