Practice Packet in CS Thinking
Use these practice problems to test your method after reviewing the concept explanation and worked examples.
Quick Recap
A small unit of data transmitted over a network, containing both the data payload and routing information (headers).
Sending data over a network is like sending a book by mail — you break it into chapters (packets), label each one with the destination, and reassemble at the other end.
Example 1
easyWhat is a data packet and why is data sent in packets rather than as one continuous stream?
Example 2
mediumDescribe what information a packet header contains and why each piece is needed.
Example 3
mediumA 1 MB file is split into 1000 packets. Packet 500 is lost during transmission. Describe what happens next.
Example 4
hardExplain why packets from the same file might take different routes across the internet and arrive out of order. How does the receiving computer handle this?