PROTOCOL CHALLENGE

HTTP Exam

Build the network. Draw the exchange. Test what you know.

204 scenarios · 39 protocols

Drag between nodes, or tap a start and an end.

Your turn to draw the conversation

Choose a message, then drag or tap between the participating nodes. Add network connections in the topology view.

YOUR MISSION

DNS Resolution

Finds the server’s IP address

Scenario context

HTTP is the protocol of the web: a client asks for a resource, such as an HTML page, and the server answers with a status code, headers and usually a body. Every exchange is one request and one response, written as readable text in HTTP/1.1.

Reconstruct 2 representative messages and 3 network links. Complete both views before submitting.

How scoring works

Messages: 50 points. Ordering: 20 points. Network links: 30 points. For a single message or a concurrent group, message accuracy is worth 70 points. Missing, extra and repeated items reduce the score. Pass: 80/100.

Reconstruct this course’s recorded scenario, using its existing connections and assumptions. Internet represents a transit network. Repeated stream packets are represented once per message type and direction; packets within the same concurrent group may be reordered.

Message type · edits the selected message

FromTo

Your messages 0/2

Select a message type, then connect its sender and receiver.

Your network links 0/3

Switch to Network topology and use the Network link tool.

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