Networks · 2 min
Follow one packet
A network moves small units of data through connected devices. Different devices solve different parts of the journey.
✓Networks
Follow a packet. Understand the whole connection.
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Networks · 2 min
Names need directions
DNS helps applications find information associated with a domain name, including IP addresses.
✓Networks · 2 min
Where does this address belong?
A prefix tells us which bits identify an IPv4 network and which bits remain for addresses inside it.
✓Networks · 2 min
An address on loan
DHCP can supply a device with an IP configuration for a limited lease period.
✓Networks · 2 min
Reliable delivery or timely arrival?
TCP and UDP provide different transport building blocks. Applications decide how to use them.
✓Networks · 2 min
Fast is more than a speed test
Bandwidth, delay, variation in delay and packet loss describe different parts of network quality.
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